read the sig and get edumacated

 

Not in this case. Changing anything in the suspension is one of the surest ways to get your warranty voided. Is it possible that your particular dealer doesn't care? Yes. If a regional rep found out, would he more than likely override any decision by the dealer and void whatever the hell he wants? Yes. Hopefully, my first response gives you a good idea as to how you can get close to 320whp on pump gas reliably with minimal mods...

 

lol...for the numbers junior was talking about reaching without a turbo back (TB). The 05's wont come close. Now that he changed his tune and said TB was throttle body (who the f*ck would be worried about changing their throttle body at this stage?) it would be possible.

 

Well, if he wanted to make good power without being completely obvious to the dealer, he's going to have to do intrusive work like I did. The way I did it was getting internal work done (i.e. throttle body/intake manifold, port and polish cylinder head, cams) and upgrading his exhaust. Also a tune would be great. The dealer is not going to harp too much about exhaust components unless you change/delete your cat.

All these are just suggestions. Just my .02 cents.

 

Lot's of useful info guys thanks for posting. I did not realize the suspension mod was so grave for warranty issues. I will definitely keep my stock springs.