Ok well this should fit your car no problem but its not a case of taking the back box off and fitting this.
The exhaust is 1 piece all the way to the front of the car where it joins the manifold. So you will need to cut the old back box off and in the corect place so that it joins. Its not an imposible job but a lot easier and safer on a ramp. I have cut a few z4 exhausts off with a death wheel on axle stands its not fun!!
As for more grunt it will sound great. But might actually rob power :thumbsdown: I am not saying one way or another but there was a long thread on hear about it.
No problem i am quite sure not 100% sure they will fit!!
Its only the front one but in a word yes loads. I have done a lot of other stuff with the suspension. But yes body roll is much less. They come up cheap so its a nice little mod. You will need new ARB bushes as well obviously the ARB is bigger. Its a shame the rear one wont fit!!