Originally Posted by sluflyer06
you will def. see big power gains @ stage 2. No worries there. It really depends on the dyno but most stock sti's dyno 240-250whp hence expect 290-300whp with stage 2.
Assuming you can drive well your basically going from a car that can reasonably do a 13.0 stock to the 12.5-12.7 range depending on driver/tune. Its a very nice increase in power for how little work and money.
Bottom line is that it is worth the money and you'll need both the AP and the TBE to do further mods down the road if you choose anyway.
I know the 2007 sti is strong, but 13.0 stock? You're getting his hopes up. (I'm not saying it can't be done, but the average driver will not do 13 flat in a stock sti). I'd agree that with some driving and stage 2, he should be in the 12's.
I have the magnaflow TXS TBE and i really like it. It sounds good, looks good with the car and isn't too loud. I think $800 is fair but i might try to get that down to $750. Not that $800 is a bad price, just that you're really doing him a favor by buying this exhaust off him.