Bolt-on an additional 17 HP** over the factory exhaust system! Dynatech® SuperMaxx stainless steel exhaust systems are engineered to give your Chevy Silverado/GMC Sierra 1500 or Hummer H2 V8 maximum performance both on and off road. Designed to be a direct replacement fit for restrictive factory exhaust and catalytic converter systems, these systems are a great way to get that extra power you are looking for.
For ceramic coating, add Dynatech® Ceramic Coating part number 31179000100to your cart.
**Dyno tested using a factory cat-back/muffler in a 5.3L application.
4.8L & 5.3L Instructions (PDF)
6.0L Instructions (PDF)