If you are using a girdle, please purchase our Tall Boy VW 4 Cylinder billet main caps.
Requires machine work including align bore & hone for fitment.
Main journal housing bore size: 2.3228"-2.3236".
About Integrated Engineering: Merging decades of experience with hundreds of hours of prototyping, engineering, dyno testing and daily usage evaluation has output exhaust systems that are the ultimate compliment to your performance car. IE products are proudly engineered, designed, and manufactured in-house, in Salt Lake City USA.
⚠️CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov