Is there such a thing as overcooling? Perhaps more cold start wear? I'm just wondering if there are downsides to this, because otherwise it seems like a solid upgrade with little extra cost. AutohausAZ has the s54 z3m rad (behr) for $153, which is $5 cheaper than the OEM M3 behr unit, but more than the $137 nissens M3 rad. For reference: OEM- 17111469179 Z3M- 17112227281 |