The MRT GMC Sierra MRT ToughTruck Cat-Back system is our loudest Sierra exhaust and is handcrafted in corrosion resistant T304 Stainless Steel. This system includes 3" mandrel bent tube and a 4" double wall, polished T304 stainless steel tip with beveled edges. It is engineered for the best sound to match the GMC Sierra and provides increased performance from increased exhaust flow. This exhaust system is the louder of the two performance Sierra exhaust systems offered by MRT.
Applications:
- 2007 GMC Sierra 5.3 V8
- 2008 GMC Sierra 5.3 V8
- 2009 GMC Sierra 5.3 V8
- 2010 GMC Sierra 5.3 V8
- 2011 GMC Sierra 5.3 V8
- 2012 GMC Sierra 5.3 V8
- 2013 GMC Sierra 5.3 V8
- 2014 GMC Sierra 5.3 V8
- 2015 GMC Sierra 5.3 V8
- 2016 GMC Sierra 5.3 V8
- 2017 GMC Sierra 5.3 V8
- 2018 GMC Sierra 5.3 V8
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
