Description of Gibson 421887 Superflow Stainless Muffler
8 in. Round Body; 3.00 in. Offset Inlet;3.00 in. Offset Outlet; L-24 in. Aggressive Powerful Sound. Baffled & Chambered Design, No packing, No Baffles or Weak Deflectors. Minimal Interior Drone. Limited Lifetime Warranty.
This muffler was a TERRIBLE choice for my automotive needs... It didn't enhance the performance of my car in any way and it also didn`t sound any better than my previous muffler. The only good thing was that it was made of stainless steel, but that didn't justify the high price. Overall I wouldn't recommend this product to anyone looking to upgrade their exhaust system..
Pros
Improved exhaust flow for increased performance and efficiency.
love Gibson exhaust products. It had a flyback system on the Chev Astro. More power and faster acceleration. Much less exhaust brakes. The temperature of the catalytic exhaust gases dropped by 100-150 degrees. The exhaust runs cooler. There's no difference in miles per gallon, but there is a difference in performance. I highly recommend Gibson.