• * Due to high demand and pre-existing waitlist, these systems have a two-week turnaround from the initial order date *   This is a 3.5" 304 Stainless Steel Muffler Delete for the 2021 Chevrolet Silverado 1500. It is quick and easy to fit. 2 cuts are required to remove the stock muffler.  The KM Sports Muffler Delete pipe is expanded on each end to slide over the cut pipes. Once in place simply tension the claps and it is ready to go.
  • The KM Straight Ace 3 inch steel exhaust system is specifically designed for HQ/ HJ/ HX/ HZ Holden sedans. This is a multi fit bolt on exhaust system to suit all V8's and including engine swaps. The KM straight Ace system is extractors back, it includes adaptors to suit the extractors on your car. The system is made up of a "X" pipe, 2 KM 409 mufflers and under diff tailpipes. It is designed to be fitted in your shed or by your local mechanic.


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