We have all seen the various threads about the best modifications to your Mk5 - remap, hpfp, rear arb, bigger brakes etc.
But what are the worst mods you have done to your car? Are there any you have done you have really regretted? Or is it just the case that maybe you are not sure how much benefit they have been?
For me, am not convinced how much use the TT lower arms have been or the WALK kit but maybe that is cause have not been on track yet - front end certainly seems lighter running a bit of negative camber. Also, because the B12 made such a difference I think the other suspension mods I have made can't compare.