Gibson Performance Dual Split Rear Cat-Back, 5in Polished Stainless Tip

A cat-back exhaust that replaces everything behind the catalytic converter with 2.50in mandrel-bent 409 stainless tubing, a Superflow chambered muffler and a 5in polished tip. It bolts to the factory hangers, so no welding.

why this one — This is the only exhaust in the lane that publishes actual numbers, 10-15 hp and 15-20 lb-ft, and more usefully it tells you where they land: 1,800 to 3,000 rpm, which is exactly where a truck lives when it is loaded or pulling away from a light. Compare that with the Corsa and Borla systems, which publish no figure at all. The honest trade is the material. Gibson uses 409 stainless for the tubing with T304 only at the tip, where Corsa and Borla use T304 throughout, so this will show surface rust sooner in a salted climate.