Re: Racing Without Exhaust From The Cat Back!
You could be right! may have been on MB forum, It's a easy mod as nothin is permenant I can simply bolt it back on when I get home!
I'm thinking the 4 stock cats should be enough back pressure for the engine, the only real back pressure is the muffler anyway as the resenator is straight through! I'm just worried about doing damage to the engine, people have said they have had warped pistons from not enough back pressure!!