i have a e36 325i with an m3 engine in it, the problem is im still running 325i brakes and they are rubbish. i have m3 standard suspension. the brakes need sorting now and ive been told e46 330 brakes are a good upgrade. ive been told e36 m3 brake calipers and discs will cost about £300 and same for the e46 330 calipers and discs. my question is how much more would it cost for say wilwood, hi-tech ect? are they worth the extra cash? what would you do?