TBH I though it can't make as much difference as people make out but now know why they all say do the mod first as it really does pin the rear on the car to the floor, I didn't realise how much body roll my car had till it was fitted and fitting it is really easy, 2 holes to drill which are in a very accessable place, then everything else just bolts on! could easy fit one in 15-20mins np. Next time you have the money to buy one 100% get one you will not be dissapointed!!!