Remove the cats and get a header from racing beat..... get some custom bent pipe into 2 canister type mufflers...... It will sound pretty nice after that... And with the removal of the cats. and the restrictive stock manifold... you will feel a signifigant power gain. Hope this helps.Ohh.... And the hell with paying 650$ for something I can have done just as well and sounds just as nice for under 250$. just my
