How Much More Power Will A 3-Inch Exhaust Give Compared To 2.5-Inch?
We all know a wider, less restrictive exhaust should give more power, but how much difference does the jump from 2.5 to three inches give? The Engine Masters guys from Motor Trend performed some tests to find out
Growing up on a diet of World Rally Championship highlights and lengthy Gran Turismo 2 sessions, a life in cars was as good as inevitable for Matt.
Comments
So, it makes any difference on a J30A (Honda) should I fit a 3 or 2.5?