Kooks Universal 1 7/8in x 3 1/2in SS Coll w/9-10in Long Body. Plus 2in for Slip

This Kooks slip-on merge collector starts with a 1-7/8 inch inside diameter inlet, designed to slide over 1-7/8 inch primary tubes. The collector features Kooks' patented scavenging spike, a unique internal design that helps improve exhaust gas flow and scavenging efficiency. The outlet is a 3-1/2 inch outside diameter, making it a solid choice for custom exhaust fabrication where you need to merge multiple primary tubes into a single, larger pipe.

Constructed from T304 aircraft-quality stainless steel, this collector is built to resist corrosion and handle the heat of exhaust gases. It's a 4-into-1 design, meaning it takes four exhaust primaries and merges them into one outlet. The collector comes with two A/B style tabs, which are used to secure it to the primary tubes during installation. This part is 100 percent manufactured in the USA by Kooks Headers, a company with over 50 years of experience in performance exhaust systems.