Quote:
Originally Posted by red6spd
Congrats on the new car man but whoever told you cutting of the mufflers and welding up straight pipes is the same as a good exhaust like Stillen, FI, HKS etc is a dope. Sorry. Most good aftermarket exhaust systems increase the size of the pipes, and alter the flow of the pipes from the cat-back to increase HP. So yea your mod was cheap but probably added about 1hp. As for the tune just do whatever mods you want then get an UpRev tune, you pay for what you get and UpRev is the best tune out there for these cars hands down. You payed a lot for your car don't cheap out.
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Er, custom mandrel-bent straight pipe setups will always outflow whatever stillen/FI/HKS makes. You're not paying the $$$ for the hp, you're paying the $$$ to keep it street legal, pass smog, and make the noise livable while adding hp - but it won't be as much hp as a custom setup.