A 2. If you want a bigger jump, a 3-inch system can deliver 10-15 horsepower. For drivers planning to push their engine beyond 300 HP with other performance parts, a 3-inch exhaust is the clear winner. Increased Performance: Any free-flowing exhaust system increases horsepower, although somewhat, unless backed by complimentary modifications. A straight pipe exhaust with minimum backpressure can increase an engine’s power output, especially at the top end.A 2. If you want a bigger jump, a 3-inch system can deliver 10-15 horsepower. For drivers planning to push their engine beyond 300 HP with other performance parts, a 3-inch exhaust is the clear winner.
How much does a full exhaust system cost?
A basic custom exhaust system, which includes replacing the muffler and tailpipe with a performance system, can cost anywhere from $500 to $1500. However, more complex custom exhaust systems that involve adding headers, high-flow catalytic converters, and other performance components can cost upwards of $3000 or more. A full exhaust system replacement in the UK typically costs between £600 and £1,200. This is more expensive than just replacing sections like the back box or mid-pipe, which usually cost less.