Manufactured from aluminized steel for durability. Designed to help ensure long service life. Engineered to reduce in-cab and exterior engine noise. Offered in a variety of styles, sizes and materials for your installation needs. An economical replacement for the original equipment part.
As a result of my tests, I determined that this muffler reduced unnecessary noise while boosting exhaust performance. It made my car run smoother and as a bonus, increased fuel efficiency....
Tightened 05 Silverado 4.3L, lasted 2 1/2 months, then it started making a rattling noise, something broke in this muffler with normal use in a very short time. Very disappointed and feel left out. I will never buy a Walker product again.