Yea the exhaust is fine and I have a HUGE speedbump in my neighborhood. I actually scrape the plastic part right under my s-tune front lip everytime I go over it, but its ok. Just a plastic piece. The exhaust is 100% fine though. I think its because the way they sit they are in the middle of the tires, so when the tires start to go up the bump the exhaust obviously raises. The extra stiffness also helps from the new suspension.
Review-
ALOT better than stock. 200 times better. I don't track my car, but I always take turns and go down roads at 100+.
There is an airport road that has some twistys and a 90 degree right hand turn (left hand on the way back
). It handles soooo much better now. It has a lot less body roll. I just set it to the stock specs on the alignment, and haven't sitffened it yet. I heard there is no need to really stiffen it. But there is no body roll, and I could take turns going 15-20mph faster than before. I can hit the apex everytime with precision, not to mention going a lot faster into turns. The rear end doesn't get out unless you are really trying to get it out. I went to slide it once and the rear end came out, but it felt controlled, it didn't feel out of control. The nose doesn't seem to dive down as much during braking, and feels overall more stable. Also, when braking at higher speeds to go into a turn, the back end doesn't "wobble".
But the thing that I was most impressed about (besides the handling) was the ride quality. It actually feels a lot better than the stock suspension. Obviously its a little bit stiffer so when you go over "bumps" or little rough spots in the road you can tell its a little more harsh, but other than that at normal speeds on the road its smoother. The body doesn't move around as much and feels overall better. The only pain is watching for low spots pulling into shopping centers. Just have to take all "stoops" and "bumps" at an angle to minimize the drop. But the improvement in handling and overall ride quality is totally worth it.
The verdict -
If handling and performance really floats your boat, then you need this kit or any other coilover kit. I'm very happy and impressed with the KW V3's, and honestly its like driving a Porsche now.