Reviewed By Peter M (Houston, TX) Reviewed for a 2004 Audi S4 —10/31/2015 10:01 AM
Good product and a good price. They sound great with the matching Magnaflow cat-back system!
Reviewed By Jgru K (Flanders, NJ) Reviewed for a 2004 Chevy Silverado —3/14/2015 5:47 AM
Great replacement for stock cats. Noticed significant increase in power and good sound with Flowmaster muffler . No problem with codes from o2 sensors with new parts. A lot less expensive then stock factory parts.