{"products":[{"id":10659478208854,"title":"Sea-Doo RXT-X 325 2025 Custom ECU Tuning","handle":"sea-doo-rxt-x-325-2025-custom-ecu-tuning","body_html":"\u003ch2\u003eSummary\u003c\/h2\u003e\u003cp\u003eCustom ECU tuning for the 2025 Sea-Doo RXT-X 325, calibrated by Lukos Engineering. The RXT-X is the big open-water machine in the Sea-Doo line, and a machine-specific calibration is how its delivery gets sharper and more consistent - built from your craft's data rather than a generic file. Two routes: tune with the tuning device included, or tune only if you already run compatible hardware.\u003c\/p\u003e\u003ch2\u003eBest For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRXT-X 325 owners refining response and delivery for open-water riding\u003c\/li\u003e\n\u003cli\u003eRiders who want calibration built on their craft's data\u003c\/li\u003e\n\u003cli\u003eOwners upgrading the whole experience, not chasing a generic flash\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eKey Specs\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eProvider: Lukos Engineering\u003c\/li\u003e\n\u003cli\u003eService Type: Custom ECU tuning\u003c\/li\u003e\n\u003cli\u003eVehicle Application: 2025 Sea-Doo RXT-X 325\u003c\/li\u003e\n\u003cli\u003eOptions: Tune and Tuning Device; Tune Only\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment And Setup Checks\u003c\/h2\u003e\u003cp\u003eConfirm your craft is the 2025 RXT-X 325 before ordering and mention any modifications so the calibration reflects them. Recent Sea-Doo ECUs can require an unlocking step before calibration - check the requirements for your craft with us before ordering so the process is planned end to end. Tune-only assumes compatible hardware you already own.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProvider\u003c\/td\u003e\n\u003ctd\u003eLukos Engineering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService\u003c\/td\u003e\n\u003ctd\u003eCustom ECU tuning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eSea-Doo RXT-X 325, 2025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptions\u003c\/td\u003e\n\u003ctd\u003eTune + device; tune only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eDoes my ECU need unlocking first?\u003c\/h3\u003e\u003cp\u003eSome 2025 Sea-Doo ECUs require an unlocking step before tuning. Check with us for your exact craft before ordering and we will plan the full process.\u003c\/p\u003e\u003ch3\u003eTune-only or tune with device?\u003c\/h3\u003e\u003cp\u003eTune-only suits owners already running compatible tuning hardware; otherwise choose the option with the device included.\u003c\/p\u003e\u003cp\u003eConfirm the craft, plan the ECU step, and get a calibration built for your RXT-X rather than everyone's.\u003c\/p\u003e","published_at":"2026-05-17T11:22:17+01:00","created_at":"2026-05-17T11:22:17+01:00","updated_at":"2026-09-09T18:35:22+01:00","vendor":"Lukos Engineering","product_type":"Tuning","tags":["brand:lukos-engineering","cat:powersports-tuning","dept:tuning","type:ecu-remap"],"variants":[{"id":53785011913046,"title":"Tune \u0026 Tuning Device","option1":"Tune \u0026 Tuning Device","option2":null,"option3":null,"sku":"HA-V53785011913046","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"950.00","grams":0,"compare_at_price":null,"position":1,"product_id":10659478208854,"created_at":"2026-05-17T11:22:17+01:00","updated_at":"2026-09-09T18:35:22+01:00"},{"id":53785011945814,"title":"Tune Only","option1":"Tune Only","option2":null,"option3":null,"sku":"HA-V53785011945814","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"700.00","grams":0,"compare_at_price":null,"position":2,"product_id":10659478208854,"created_at":"2026-05-17T11:22:17+01:00","updated_at":"2026-09-09T18:35:22+01:00"}],"images":[{"id":77969885626710,"created_at":"2026-05-17T16:38:20+01:00","position":1,"updated_at":"2026-05-17T16:38:25+01:00","product_id":10659478208854,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/Seadoorxt-x3252025.png?v=1779032305","width":1254,"height":1254}],"options":[{"name":"Tuning Options","position":1,"values":["Tune \u0026 Tuning Device","Tune Only"]}]}]}