American Thunder Flowmaster

[naptown]

I just did a search and came across this
http://www.popularhotrodding.com/tech/0305phr_v6/
It reads:
The American Thunder exhaust for V-6 F-Body cars worked on the DynoJet chassis dyno to the tune of almost 11 hp at the rear wheels, which is nearly a seven percent improvement. Using a Vericom VC2000 Performance Computer, an on-board, vehicle dynamics testing device (www.vericomcomputers.com), we observed an improvement in 0-to-60 time from 7.83 to 7.44-sec. and quarter mile stats going from 16.15 at 89.14 to 15.87 at 90.69.

An 11 rwhp gain from the catback [img]graemlins/fluffy.gif[/img]

[naptown]

ttt

[shortdog273]

That could be true for THAT car, but don't believe everything you read, especially magazine numbers. Remember: All V6 fbodies don't react the same to mods.

[Kidinthehall2001]

Their car started out at 16.15 in the the 1/4? :eek: Aren't we mid 15's?

I am looking for a catback, and this article really caught my eye. I don't care if it's real rice sounding up high, i want more HP!!

I got that magazine and one thing i noticed was that they say the 2 exhaust outlet package from the factory is the "Y99" package. Isn't it the Y87 or something like that?

[naptown]

Im not sure about the y99 thing but they said it was suspension tuned y99 package, maybe they got it wrong and should have said y87

[ April 08, 2003: Message edited by: naptown ]</p>

[Loochy88]

well, y99 is definitely the code for the handling package... and im sure theres a chance that might include the exhaust and still not the 3.42 gearing. i hope they wernt running 16's with 3.42's. youre not the first to post about this article. i think those numbers are believable... Exhaust wasnt the only thing they did to that car however.

[naptown]

really? in the article they only mention putting an exhaust on that car. they did a dyno before then a dyno after so....