CJ,<br>The best advice I can give you on making your GS faster than Vettes, Porsche's, and even Ferrari's is go to... <a href=http://www.swift-racing.com target=new>http://www.swift-racing.com</a> Now, getting past the Ferrari's would include buying their $30,000, yes $30,000, supercharger kit, but if you got it, go for it!! If your not into all that, I would just recommend getting the Swift Racing Torque Converter and Level II Intake Kit. Just these 2 mods will lower your 0-60 from like 5.7 to around 5 flat!! Then you'll be SMOKING those Vettes leaving them bewildered!!! These will be the upgrades I will be getting once I get my Multi-Media System for my GS finished. Check them out, you'll LOVE what you see. Oh and by the way, Swift-Racing has the FASTEST STREET LEGAL GS400 IN THE WORLD!!! 0-60 in like 4 seconds!!! Runs a 1/4 mile in the 11's. And that's with an AUTOMATIC.... drool..<br><br>--Justin--<br>Platinum 2G GS4