selling 03 gt???

my brother doesnt like his 03 gt. He says its to slow even with mods. outta the box the car runs mid 14's. a stock ls1 runs 13.3. How do i get more hp w/o buying a procharger. right now we ordered an american thunder exhaust, throttle bodie, chip, intake.

Headers intake full exhaust and put some better gears like 3.73.

Nitrous! :D hahaha
no 3.73 gears, 4.10!!! :p

if it's in the price range go for the Camaro or Trans Am. There really is no comparisson between a n/a mustang 4.6 and the LS1.

The 99-04 stangs dyno at 220-230ish. The 05 and 06 dyno between 250 and 260. Stock LS1s easily dyno over 280 and often times even over 300. Don't let the facotry rating fool you, the LS1 is a different beast.

my brother doesnt like his 03 gt. He says its to slow even with mods. outta the box the car runs mid 14's. a stock ls1 runs 13.3. How do i get more hp w/o buying a procharger. right now we ordered an american thunder exhaust, throttle bodie, chip, intake.does it have a slush box or a stick?