- Should I invest in a 2.5" or a 3.0" exhaust if I plan to eventually supercharge my car?
- I know that Stillen has very strict standards for their S/C kit, but I didn't know exactly what they were. What exhausts come in what sizes? What about an aftermarket cat?

 

Well Matt, for a supercharged Max the 3" wouldn't be a bad idea. But you say you are planning on s/cing it...well for now go w/ the 2.5" because if you went w/ the 3" now......you'd lose a lotta low end power especially now that you do not have the supercharger installed. And another thing the 2.5" isn't bad at all for the supercharger. In fact it is perhaps better than the 3". As for cat's....Random Technology has a 2.5" and a 3.0"......the 3" would be benificial in this case......hope this helps.