control

HKS EVC Boost Controller Complete kit Uncut loom Working perfectly In great condition Comes with English installation/instruction manual RRP - £550 Best boost controller on the market £280 posted

Hey, I was thinking of upgrading my stock control arms to better ones, such as the e46 ones, which I found on ebay. Now the question is, are there any major modifications for this to work? If so, what kind of mods? & also, do you think that this upgrade will be worth it? If not what kind of...