looking for feedback on Revolution Marine exhaust manafolds for twin 454mpi mercs in a Formula 312 fastech.I have seen there ads but havent seen any installed and was wondering if anybody has info good or bad. thanks in advance!

I put them on my last boat ,22 scarab ,when I put a new engine in it.450 hp 454, I dont have any complaints about them. The price was right they looked good and they sounded awesome.

I've got them on a mildly blown 454, no complaints. Motor seems to breathe a little easier and definite weight savings over stock.

The Revolution Marine exhaust is without a doubt the best system for the money.

Agree, have fitted them on two different boats, no issues.