SORRY FOR THE DELAY. Two weeks ago I was set to have a new set of JBA shorties installed on my 2004 GTO. Needless to say I just got them installed on Friday! But the wait was well worth it. You may remember I posted my stock dyno numbers:
307 RWHP
330 RWTQ
After adding the JBA smog legal shorties:
337 RWHP
364 RWTQ
I couldn't believe it. Remember, NO modifications have been made to my GTO at all. They even cooled the engine to 90 degrees on both pulls. The car is begging for more air now so I will be adding the K&N kit. But first JBA has a CAT BACK system that will go on next. as soon as I have some numbers I will post again!
307 RWHP
330 RWTQ
After adding the JBA smog legal shorties:
337 RWHP
364 RWTQ
I couldn't believe it. Remember, NO modifications have been made to my GTO at all. They even cooled the engine to 90 degrees on both pulls. The car is begging for more air now so I will be adding the K&N kit. But first JBA has a CAT BACK system that will go on next. as soon as I have some numbers I will post again!