hogmeat

8 5/8" thick washers. That's it. Look through the big thread in Performance Modifications, or look it up on Youtube. It basically diverts some of your exhaust gases before it passes through your muffler, and it sounds awesome. Videos sound OK, real life sounds great!

Nope. None at all. All it does it end the exhaust about 14" inches earlier. It still goes out the back and right up!