Have a 1990 Toyota 4runner with 2.4L turbocharged, 2.5in exhaust no cat, wondering what the quietest and most efficient muffler is. I understand turbo's don't like backpressure and chambered mufflers aren't that great for this app. I'm looking at Dynomax stainless oval straight in/out. Low to mid rpm say 5500. Was also looking at Flowmaster DBX.
Efficient muffler for turbo- 4 cyl
- Thread starter dfarr67
- Start date
I think youll find the links useful
http://garage.grumpysperformance.com/index.php?threads/interesting-muffler-test-results.2916/
http://garage.grumpysperformance.com/index.php?threads/interesting-muffler-test-results.2916/