Kooks Universal 1 5/8in x 3in SS Coll w/9-10in Long Body. Plus 2in for Slip

This Kooks slip-on collector starts with a 1-5/8 inch inside diameter inlet, designed to slide over 1-5/8 inch primary tubes. It’s constructed from 304 stainless steel, which is a strong material that holds up well to exhaust temperatures. The collector features a 4-into-1 design, meaning it takes the exhaust gases from four primary tubes and merges them into a single outlet.

What sets this collector apart is Kooks' patented scavenging spike. This internal spike helps to create a low-pressure area as exhaust pulses exit the primaries, which can help pull exhaust gases out of the engine more efficiently. This design is intended to improve exhaust flow and potentially increase power. The outlet is a 3 inch outside diameter, and the collector includes two A/B style tabs to help secure it to the primary tubes during installation.

This collector is handcrafted in the USA and is tested on dynos and race tracks. It's a well-built component for custom exhaust fabrication projects where maximizing exhaust flow is the goal.