[bimmerJP]

This might sound stupid, because it is. I still don't get why that Performance Brake Kit is only available for N52? I thought whether the brake would fit or not depends on the wheel size. Am I wrong? And if I am right, can 135i/335i use those Performance Brake Kits? Just curious.
Yeah, I'm pretty dumb

[abhishriv]

im not an expert on this but i think its also about the mounting bracket for the caliper, which i believe is different on the 328 and 335 models. also i believe they havent come out with the performance brake kit for the 335 because the stock 335 brakes are just as good as the performance brakes available for the n52 models.

[JDMKS]

I am sure there would be a better/reasonable response http://www.e90post.com/forums/forumdisplay.php?f=38

[bimmerJP]

Originally Posted by abhishriv

im not an expert on this but i think its also about the mounting bracket for the caliper, which i believe is different on the 328 and 335 models. also i believe they havent come out with the performance brake kit for the 335 because the stock 335 brakes are just as good as the performance brakes available for the n52 models.

That is also what I was thinking. Maybe the stock on N54 is almost as good as the Performance for N52. And yeah, I totally forgot the caliper part. I think that might be the reason.