Anyone know if its possible to run a 3 inch system under the diff? I realise it would sit lower, but has anyone done it without any problems? The car has super lows, and 18's.

It'd be extremely low, why do you want to do this??

Yes, you "can" do it, however, having it LEGAL (and/or usefully) is a whole new ballpark. For starters, the exhaust must run low enough as to not foul the diff / suspension at FULL travel. Also the exhaust must run high enough as to leave the minimum 100mm ground clearance under it. Usually its not too much of a problem in an IRS car, as the diff centre is in a fixed place and the exhaust can be run close to this and still be high enough, but with a live axle car, you would be hard pushed to get the correct clearances.

Thats what I thought, the reason I was wanting to know is, I am fitting it myself, and it would be ****loads easier to go under the diff. Cheers for the info guys.

save yourself the hassle and have it done at an exhaust place

vent it down just in front of the left axle, and put a fake tip on it so that i looks like you have a full exhaust. then you have the best of both worlds!

i hav a friend that has a turned down pipe right b4 the diff with a seperate muffler on the back, gr8 idea but if u want it legal just do it the normal way