Merc 2.5L 200 HP midsection

[jasoncooperpcola]

What does the racing tuner and exhaust bucket add hp wise? Just wondering??

[cterrebonne]

Originally Posted by jasoncooperpcola

What does the racing tuner and exhaust bucket add hp wise? Just wondering??

not much unless your engine is tuned for the decreased backpressure. I was going to get my 200hp 2.5 port matched, decked and then the heads shaved down and then tune it with pyrometers so the a/f ratio was going to be spot on.