I think it all depends on the how heavy the rim and tire combination is. You might loose some performance if the rims are too heavy but I doubt you would be really noticing it. In some cases, if you end up getting ultra-light rims you might actually loose unsprung weight. I think the rule of thumb is that a 1 lbs change in unsprung weight (i.e. wheels and tires) feels like 4 lbs.
Originally Posted by bmwjdub
stock on my 08 535xi are the 17's.....would there be much performance taken from the car if i put 18 or 19's on the car? I just got the jb4 in with the DCI.....as soon as the car is back from BMW (i hit a deer = 7k damage) i'll have that installed. the M6 rims are sexy....thoughts?
I live in the DC area and I am thinking of switching to - however, I would not want to switch to 19s. My wife's car has 18 and that is about perfect. As for rims, while I love the look of M6s - I have not heard too many good things about some of the M6 reps. I have thought about Forgestar F14s, BMW Style 303 Performance (18 inches rear spacing). Thankfully there are plenty of choices for the xis as the spacing is close to that of the 3 series.
2008 535 xi, space grey, black dakota leather, premium package, sport package, cold weather package, nav, folding seats, PDC
BMW CCA Member