Nearly 30 years of obsessively cataloging, photographing, and taking video of each part means it will fit your 1979 Jeep CJ Models 40 Series Muffler - CJ7 - Base - 4.2L Performance Muffler.

Period. No Hassle. GUARANTEED.

We cover round trip shipping if we make a mistake.

Check out the video below to view the Guaranteed Exact Fit process from start to finish!