with this :
http://www.optauto.com/webstore/prod...=yes&dept=1391 system, would there be any fabricating involed, or would it just bolt right to the headers? are there any other systems for N/A that would involve NO fabrication? i want a single outlet exhaust too.

 

email them and ask them

ask if it bolts up the stock manifold or an aftermarket header..

i see flanges on those parts, so its probably bolt-up..