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Bring your primary tubes into a matching outlet
Kooks 9903S gives your custom header a four-into-one collector for 1-3/4-inch primary tubes. The 304 stainless collector uses the patented scavenging spike and a 3-inch outside-diameter outlet.
SKU: 9903S
Size the inlet to the primary tubes
The collector has 1-3/4-inch inside-diameter primary inlets that slip over matching outside-diameter tubes. Two A/B-style tabs are included to secure the collector to the primaries.
One collector supplied
9903S is sold individually. Match the quantity and 3-inch outlet to your header and connecting exhaust layout.
Ordering and delivery
Estimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.
Technical specifications
| Specification | Details |
|---|---|
| SKU | 9903S |
| Application | Custom header fabrication; single collector |
| Primary inlet diameter | 1-3/4-inch inside diameter; slips over matching outside diameter primary tubes |
| Collector outlet diameter | 3-inch outside diameter |
| Collector design | Four-into-one with patented scavenging spike |
| Included | Two A/B-style tabs to secure collector to primaries |
| Material | 304 stainless steel |
Frequently asked questions
Does 1-3/4 inch describe the inlet or outlet?
It is the primary inlet inside diameter. The outlet is 3-inch outside diameter.
How many collectors are supplied?
Each item supplies one collector with two A/B-style tabs.
