How to Make Stock Chevy Exhaust Pipes Sound Better
- 1). Replace or add a resonated exhaust tip to the stock tail pipe. Exhaust tip design directly affects the tone and sound output of the exhaust system. Resonated tips contain a sound dampening lining, usually fiberglass, that quiets the exhaust.
- 2). Install an exhaust tip designed to amplify the sound profile. Tips that are dual walled, beveled or flared may make your exhaust sound more noticeable. Exhaust tips that increase in diameter from the exhaust tip connection will also amplify the exhaust. When sliding the exhaust tip over the existing tailpipe, be sure the tail pipe has been cut back sufficiently to allow the exhaust gases to enter the exhaust tip.
- 3). Replace the muffler. Muffler design directly affects the sound profile of the exhaust system. Mufflers with open chamber designs can deepen the exhaust tone. Installation of glass-packs or noise amplifying exhausts can significantly increase the exhaust sound produced by your Chevy. Muffler designs with multiple chambers and sound dampening materials may be used to quiet the overall exhaust system.
- 4). Remove the muffler. Replace the open space with exhaust pipe equivalent to the stock system. Without the muffler installed the noise level will be significantly increased.
Source...