Kooks Universal 2 1/4in x 4in SS Coll w/9-10in Long Body. Plus 2in for Slip

If you're building a custom exhaust system or upgrading your headers, a well-designed collector is key to getting the most out of your engine. This Kooks 4-into-1 slip-on collector is built to help your exhaust gases exit efficiently, which can lead to improved engine performance. It's made from 304 stainless steel, so it's built to last through the rigors of the road.

What sets this collector apart is Kooks' patented scavenging spike. This internal spike helps direct exhaust flow, creating a low-pressure area that pulls exhaust gases from the other primary tubes more effectively. This improved scavenging can help your engine breathe better and make more power. The inlet is designed to slip over 2-1/4 inch primary tubes, and the outlet is a 4-inch diameter. It also includes two A/B style tabs to help you secure it to your header primaries during fabrication.

This collector is manufactured in the USA and is backed by a limited lifetime warranty to the original purchaser. It's a solid option for anyone looking to build a high-performance exhaust system where every detail matters.