If you have ways to monitor what your exhaust temps like the GT1 diagnostic then you might get away with just modifying from catalytic to M3 headers. You probably wont get the same performace increase as going with custom exhaust. In regards to the 3.45 differential, if you are not abusing your car then the stock lsd might last(who knows). The stock tranny is good for 400whp from what the dealer mechanics told me. Other than that i believe if your just going mild mods on an m3 swap i dont see why not. You might just need to flush the oil more often than usaul (synthetic at that).
Hope fully it stays sunny this weekend. If it does i might be at PIR. lets just hope it doesnt rain. |