Picking the Best 4 Inch Race Muffler for Your Car
Grabbing a 4 inch race muffler is usually the last piece of the puzzle when you're building something that actually needs to breathe. If you've spent any time under a hood or hanging out at the track, you know that size definitely matters when it involves moving air out of an engine. We aren't talking about a casual daily driver here; a 4-inch diameter is serious business. It's for the guys running big turbos, high-displacement V8s, or diesel builds that need to move massive amounts of exhaust gas without hitting a wall of backpressure. ...