{"products":[{"id":11350208086358,"title":"Kooks 3\" H.O. GREEN High-Flow Catalytic Converter - GE-90150","handle":"kooks-ge-90150","body_html":"\u003ch2\u003eChoose catalyst capacity for the engine you are building\u003c\/h2\u003e\u003cp\u003eIf your build needs the higher-output GREEN specification, the GE-90150 combines a 300 CPSI substrate with a larger 4-1\/2\" outside-diameter body. It supports forced induction and is rated for up to 500 hp per converter or 1000 hp per pair. That makes capacity, pipe fit and available space the important choices before fabrication.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e GE-90150\u003c\/p\u003e\u003ch2\u003eA different substrate and larger body\u003c\/h2\u003e\u003cp\u003eH.O. GREEN uses 300 cells per square inch, compared with the 400 CPSI substrate of standard GREEN. The 4-1\/2\" OD body is 4\" long, with 7\" overall length, and both connections have a 3\" inside diameter. Allow for that larger body when checking clearance.\u003c\/p\u003e\u003ch2\u003eUnderstand the rating\u003c\/h2\u003e\u003cp\u003eThe rating is up to 500 hp per converter or 1000 hp per pair. It is an application capacity figure, not horsepower added by the exhaust. Match the capacity to the completed engine and use the correct number and arrangement of converters for the system.\u003c\/p\u003e\u003ch2\u003eEmissions treatment with the system correctly set up\u003c\/h2\u003e\u003cp\u003eThe high-flow catalyst treats exhaust emissions and is certified to U.S. EPA standards. That U.S. certification does not establish UK-specific approval. Elimination of a check-engine light is not guaranteed, so the sensor and calibration arrangement still matter.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eGE-90150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst type\u003c\/td\u003e\n\u003ctd\u003eH.O. GREEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet and outlet\u003c\/td\u003e\n\u003ctd\u003e3\" inside diameter (ID)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody diameter\u003c\/td\u003e\n\u003ctd\u003e4-1\/2\" outside diameter (OD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody length\u003c\/td\u003e\n\u003ctd\u003e4\" body length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall length\u003c\/td\u003e\n\u003ctd\u003e7\" overall length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubstrate\u003c\/td\u003e\n\u003ctd\u003e300 CPSI (cells per square inch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 500 hp per converter; 1000 hp per pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForced induction\u003c\/td\u003e\n\u003ctd\u003eSupported within the application rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification standard\u003c\/td\u003e\n\u003ctd\u003eU.S. EPA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarning-light condition\u003c\/td\u003e\n\u003ctd\u003eElimination of a check-engine light is not guaranteed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eFAQs\u003c\/h2\u003e\u003ch3\u003eIs 1000 hp the rating for one converter?\u003c\/h3\u003e\u003cp\u003eNo. It is the rating per pair. One converter is rated for up to 500 hp.\u003c\/p\u003e\u003ch3\u003eDoes H.O. GREEN have the same body as standard GREEN?\u003c\/h3\u003e\u003cp\u003eThis H.O. version has a 4-1\/2\" outside-diameter body and 300 CPSI substrate. Standard GREEN has a 4\" OD body and 400 CPSI substrate.\u003c\/p\u003e\u003ch3\u003eHow does ULTRA-GREEN differ from H.O. GREEN?\u003c\/h3\u003e\u003cp\u003eULTRA-GREEN uses a 400 CPSI substrate and additional precious-metal content in the same listed 4-1\/2\" OD body size. H.O. GREEN uses a 300 CPSI substrate and its own higher-output application rating.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","published_at":"2026-10-09T13:07:46+01:00","created_at":"2026-10-08T10:41:08+01:00","updated_at":"2026-10-12T14:15:19+01:00","vendor":"Kooks","product_type":"Catalytic Converters","tags":["brand:kooks","cat:exhausts","class:equipment-service-non-vehicle","dept:performance-parts","type:catalytic-converter"],"variants":[{"id":55646895341910,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"GE-90150","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"796.67","grams":1361,"compare_at_price":null,"position":1,"product_id":11350208086358,"created_at":"2026-10-08T10:41:08+01:00","updated_at":"2026-10-12T14:15:19+01:00"}],"images":[{"id":86449207017814,"created_at":"2026-10-08T10:41:08+01:00","position":1,"updated_at":"2026-10-08T10:41:12+01:00","product_id":11350208086358,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/b371f5816035207b60673365316ec91c.png?v=1791452472","width":1080,"height":1080},{"id":86449207050582,"created_at":"2026-10-08T10:41:08+01:00","position":2,"updated_at":"2026-10-08T10:41:11+01:00","product_id":11350208086358,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/75aad9a6557d541ddecf044c395efc7b.png?v=1791452471","width":1080,"height":1080},{"id":86449207083350,"created_at":"2026-10-08T10:41:08+01:00","position":3,"updated_at":"2026-10-08T10:41:12+01:00","product_id":11350208086358,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/c8044bac5a32bdef7e9dabb65f8280e8_a796d8ae-00d7-44be-97dc-b6f67a0c16fd.png?v=1791452472","width":1080,"height":1080}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]},{"id":11350207693142,"title":"Kooks 3\" GREEN High-Flow Catalytic Converter - GE-90147","handle":"kooks-ge-90147","body_html":"\u003ch2\u003eChoose a catalyst that fits your modified exhaust\u003c\/h2\u003e\u003cp\u003eThe Kooks GE-90147 GREEN converter gives a custom 3\" exhaust a high-flow catalyst option that also supports forced induction. Its 400 CPSI substrate sits in a 4\" outside-diameter body, with an application rating of 375 hp per converter or 750 hp per pair. Match that capacity and footprint to the engine and exhaust you are building.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e GE-90147\u003c\/p\u003e\u003ch2\u003eClear dimensions for the fabricator\u003c\/h2\u003e\u003cp\u003eBoth ends have a 3\" inside diameter. The body is 4\" long and 4\" in outside diameter; overall length is 7\". These measurements establish the pipe interface and fitting space, so the converter can be placed with appropriate support and heat clearance.\u003c\/p\u003e\u003ch2\u003eCapacity rather than a power-gain claim\u003c\/h2\u003e\u003cp\u003eThe 375 hp per-converter and 750 hp per-pair figures describe application capacity. They do not promise an increase in engine output. The GREEN design supports naturally aspirated and forced-induction applications within that rating.\u003c\/p\u003e\u003ch2\u003eEmissions treatment and system setup\u003c\/h2\u003e\u003cp\u003eThe high-flow 400 CPSI substrate treats exhaust emissions, and the converter is certified to U.S. EPA standards. It does not guarantee elimination of a check-engine light. Match the sensor and calibration arrangement to the completed exhaust.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eGE-90147\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst type\u003c\/td\u003e\n\u003ctd\u003eGREEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet and outlet\u003c\/td\u003e\n\u003ctd\u003e3\" inside diameter (ID)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody diameter\u003c\/td\u003e\n\u003ctd\u003e4\" outside diameter (OD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody length\u003c\/td\u003e\n\u003ctd\u003e4\" body length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall length\u003c\/td\u003e\n\u003ctd\u003e7\" overall length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubstrate\u003c\/td\u003e\n\u003ctd\u003e400 CPSI (cells per square inch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication capacity\u003c\/td\u003e\n\u003ctd\u003e375 hp per converter; 750 hp per pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForced induction\u003c\/td\u003e\n\u003ctd\u003eSupported within the application rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification standard\u003c\/td\u003e\n\u003ctd\u003eU.S. EPA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarning-light condition\u003c\/td\u003e\n\u003ctd\u003eElimination of a check-engine light is not guaranteed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eFAQs\u003c\/h2\u003e\u003ch3\u003eIs the 750 hp rating for one converter?\u003c\/h3\u003e\u003cp\u003eIt is the rating per pair. One converter is rated for 375 hp.\u003c\/p\u003e\u003ch3\u003eDoes the 3\" size describe the body?\u003c\/h3\u003e\u003cp\u003eNo. The connections are 3\" inside diameter; the body is 4\" outside diameter.\u003c\/p\u003e\u003ch3\u003eCan it be used with forced induction?\u003c\/h3\u003e\u003cp\u003eYes, within its application rating. Match the converter capacity to the finished build.\u003c\/p\u003e\u003ch3\u003eDoes EPA certification mean UK-specific approval?\u003c\/h3\u003e\u003cp\u003eIt describes the U.S. certification standard. It does not establish UK-specific approval for your exhaust installation.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","published_at":"2026-10-09T13:07:42+01:00","created_at":"2026-10-08T10:41:07+01:00","updated_at":"2026-10-12T14:15:19+01:00","vendor":"Kooks","product_type":"Catalytic Converters","tags":["brand:kooks","cat:exhausts","class:equipment-service-non-vehicle","dept:performance-parts","type:catalytic-converter"],"variants":[{"id":55646894752086,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"GE-90147","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"434.74","grams":1361,"compare_at_price":null,"position":1,"product_id":11350207693142,"created_at":"2026-10-08T10:41:07+01:00","updated_at":"2026-10-12T14:15:19+01:00"}],"images":[{"id":86449202463062,"created_at":"2026-10-08T10:41:07+01:00","position":1,"updated_at":"2026-10-08T10:41:10+01:00","product_id":11350207693142,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/4a4ac48f2676674f125c10cb69109bcb_015989c5-0427-4e0d-9826-06e243277d64.jpg?v=1791452470","width":1500,"height":1500},{"id":86449202495830,"created_at":"2026-10-08T10:41:07+01:00","position":2,"updated_at":"2026-10-08T10:41:10+01:00","product_id":11350207693142,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/4f556aa698fa26240b482b3ad0b5a40b_7392f26f-cee9-4aad-b912-df33a7a9a0f5.jpg?v=1791452470","width":2071,"height":1600}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]},{"id":11350207889750,"title":"Kooks 2-1\/2\" GREEN High-Flow Catalytic Converter - GE-90148","handle":"kooks-ge-90148","body_html":"\u003ch2\u003eA GREEN catalyst for your 2-1\/2\" exhaust\u003c\/h2\u003e\u003cp\u003eChoose the connection size that actually matches your pipework. The GE-90148 gives a custom 2-1\/2\" exhaust the GREEN catalyst specification, with a 400 CPSI substrate and support for forced induction within its application capacity. It is rated for 375 hp per converter or 750 hp per pair.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e GE-90148\u003c\/p\u003e\u003ch2\u003eMatch the smaller connection without confusing the body size\u003c\/h2\u003e\u003cp\u003eThe inlet and outlet are 2-1\/2\" inside diameter. The body is 4\" outside diameter and 4\" long, with 7\" overall length. Use the connection measurement for the joints and the body measurements for clearance under the vehicle.\u003c\/p\u003e\u003ch2\u003eChoose capacity for the complete build\u003c\/h2\u003e\u003cp\u003eThe 375 hp per-converter and 750 hp per-pair ratings describe application capacity, not engine power added by the converter. The GREEN substrate treats exhaust emissions and supports naturally aspirated or forced-induction use within that rating.\u003c\/p\u003e\u003ch2\u003eFinish the system with the right setup\u003c\/h2\u003e\u003cp\u003eThis converter is certified to U.S. EPA standards and does not guarantee elimination of a check-engine light. The certification is a U.S. standard, rather than a UK-specific approval claim. Plan the sensor position, support and calibration with the fabricator.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eGE-90148\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst type\u003c\/td\u003e\n\u003ctd\u003eGREEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet and outlet\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\" inside diameter (ID)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody diameter\u003c\/td\u003e\n\u003ctd\u003e4\" outside diameter (OD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody length\u003c\/td\u003e\n\u003ctd\u003e4\" body length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall length\u003c\/td\u003e\n\u003ctd\u003e7\" overall length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubstrate\u003c\/td\u003e\n\u003ctd\u003e400 CPSI (cells per square inch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication capacity\u003c\/td\u003e\n\u003ctd\u003e375 hp per converter; 750 hp per pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForced induction\u003c\/td\u003e\n\u003ctd\u003eSupported within the application rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification standard\u003c\/td\u003e\n\u003ctd\u003eU.S. EPA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarning-light condition\u003c\/td\u003e\n\u003ctd\u003eElimination of a check-engine light is not guaranteed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eFAQs\u003c\/h2\u003e\u003ch3\u003eHow does this differ from the 3\" GREEN converter?\u003c\/h3\u003e\u003cp\u003eThis version has 2-1\/2\" inside-diameter connections. The listed body dimensions, substrate and application ratings are the same.\u003c\/p\u003e\u003ch3\u003eIs 750 hp the single-converter capacity?\u003c\/h3\u003e\u003cp\u003eNo. It is the capacity per pair; one converter is rated for 375 hp.\u003c\/p\u003e\u003ch3\u003eWill fitting a GREEN catalyst guarantee no warning light?\u003c\/h3\u003e\u003cp\u003eNo. A catalyst alone does not guarantee the absence of a check-engine light.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","published_at":"2026-10-09T13:07:44+01:00","created_at":"2026-10-08T10:41:07+01:00","updated_at":"2026-10-12T14:15:19+01:00","vendor":"Kooks","product_type":"Catalytic Converters","tags":["brand:kooks","cat:exhausts","class:equipment-service-non-vehicle","dept:performance-parts","type:catalytic-converter"],"variants":[{"id":55646895210838,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"GE-90148","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"528.30","grams":1361,"compare_at_price":null,"position":1,"product_id":11350207889750,"created_at":"2026-10-08T10:41:07+01:00","updated_at":"2026-10-12T14:15:19+01:00"}],"images":[{"id":86449205281110,"created_at":"2026-10-08T10:41:07+01:00","position":1,"updated_at":"2026-10-08T10:41:10+01:00","product_id":11350207889750,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/c04dddd1235c3bb7d43f778a395d8664_21df908b-3b83-400e-a7de-ef2513006f06.jpg?v=1791452470","width":3300,"height":2550},{"id":86449205313878,"created_at":"2026-10-08T10:41:07+01:00","position":2,"updated_at":"2026-10-08T10:41:10+01:00","product_id":11350207889750,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/2ed5d2e3934eca4ef83241e25baaebb0.jpg?v=1791452470","width":1500,"height":1500}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]},{"id":11350207463766,"title":"Kooks 3\" ULTRA-GREEN High-Flow Catalytic Converter - GE-90146","handle":"kooks-ge-90146","body_html":"\u003ch2\u003eKeep catalysts in your higher-output exhaust build\u003c\/h2\u003e\u003cp\u003eA modified engine needs catalysts chosen for the power and the pipework, not just the badge. The Kooks GE-90146 ULTRA-GREEN converter combines a 400 CPSI substrate with a 4-1\/2\" outside-diameter body and 3\" inside-diameter connections. It supports forced induction and is rated for 425 hp per converter, or 850 hp per pair.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e GE-90146\u003c\/p\u003e\u003ch2\u003eChoose by capacity and fitting space\u003c\/h2\u003e\u003cp\u003eThe power figure describes the catalyst application capacity, not a gain from fitting it. Its 4\" body length and 7\" overall length give your fabricator a defined footprint. Check both the pipe joints and the 4-1\/2\" OD body clearance when placing it in the exhaust.\u003c\/p\u003e\u003ch2\u003eHigh-flow substrate with emissions treatment\u003c\/h2\u003e\u003cp\u003eThe 400 CPSI substrate is designed to treat exhaust emissions while allowing a high-flow exhaust arrangement. CPSI means cells per square inch. ULTRA-GREEN uses the larger body and additional precious-metal content of that catalyst design.\u003c\/p\u003e\u003ch2\u003eMatch the finished system\u003c\/h2\u003e\u003cp\u003eThis converter is certified to U.S. EPA standards. That identifies the certification standard; it is not a UK-specific approval claim. A converter does not guarantee that a check-engine light will be eliminated, so the engine, sensor arrangement and calibration still need to suit the exhaust.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eGE-90146\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst type\u003c\/td\u003e\n\u003ctd\u003eULTRA-GREEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet and outlet\u003c\/td\u003e\n\u003ctd\u003e3\" inside diameter (ID)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody diameter\u003c\/td\u003e\n\u003ctd\u003e4-1\/2\" outside diameter (OD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody length\u003c\/td\u003e\n\u003ctd\u003e4\" body length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall length\u003c\/td\u003e\n\u003ctd\u003e7\" overall length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSubstrate\u003c\/td\u003e\n\u003ctd\u003e400 CPSI (cells per square inch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication capacity\u003c\/td\u003e\n\u003ctd\u003e425 hp per converter; 850 hp per pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForced induction\u003c\/td\u003e\n\u003ctd\u003eSupported within the application rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification standard\u003c\/td\u003e\n\u003ctd\u003eU.S. EPA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarning-light condition\u003c\/td\u003e\n\u003ctd\u003eElimination of a check-engine light is not guaranteed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eFAQs\u003c\/h2\u003e\u003ch3\u003eDoes 850 hp mean one converter?\u003c\/h3\u003e\u003cp\u003eNo. It is the rating per pair. The rating for one converter is 425 hp.\u003c\/p\u003e\u003ch3\u003eHow do I choose the right capacity?\u003c\/h3\u003e\u003cp\u003eMatch the rating to the power and converter arrangement of your completed build. This version is rated for 425 hp per converter or 850 hp per pair, and supports forced induction within that rating.\u003c\/p\u003e\u003ch3\u003eCan I use it on a forced-induction build?\u003c\/h3\u003e\u003cp\u003eYes, within the converter's application rating and with the correct fitting arrangement.\u003c\/p\u003e\u003ch3\u003eWill it guarantee no check-engine light?\u003c\/h3\u003e\u003cp\u003eNo. The converter does not guarantee elimination of the warning light.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","published_at":"2026-10-09T13:07:40+01:00","created_at":"2026-10-08T10:41:06+01:00","updated_at":"2026-10-12T14:15:19+01:00","vendor":"Kooks","product_type":"Catalytic Converters","tags":["brand:kooks","cat:exhausts","class:equipment-service-non-vehicle","dept:performance-parts","type:catalytic-converter"],"variants":[{"id":55646894653782,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"GE-90146","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"939.47","grams":1361,"compare_at_price":null,"position":1,"product_id":11350207463766,"created_at":"2026-10-08T10:41:06+01:00","updated_at":"2026-10-12T14:15:19+01:00"}],"images":[{"id":86449201545558,"created_at":"2026-10-08T10:41:06+01:00","position":1,"updated_at":"2026-10-08T10:41:09+01:00","product_id":11350207463766,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/62fc0c9176c7f289bd1dc20c09ae628a_3ffbe2b7-5fe0-4093-ba37-ed0860874bd1.png?v=1791452469","width":1080,"height":1080}],"options":[{"name":"Title","position":1,"values":["Default Title"]}]}]}