2008 Pontiac Grand Prix GXP Dyno Pull 2

Catless Hogan Downpipe & Cutout. Stock intake (stock paper filter) and stock tune.

2nd run #'s : 264whp/277tq on a dynojet.

Category:

Autos & Vehicles

Tags:

• ls4
• v8
• gxp
• ss
• impala
• monte
• carlo
• ls1
• ls3
• ls6
• fwd
• dyno
• dynopull
• dynorun
• dynojet
• cars
• engine
• racing
• automobiles

[chicagotransam]

With the catless DP, do you need O2 sims?

[red07ls]

@chicagotransam Yeah, you'll need one. I didn't get one hence why the CEL was on. I would suggest having it tuned out over using an O2 sim though.

[confidentbeautyhs]

are you goin to get it tuned? im curious what addin a tune does... ive heard 10hp gains

[red07ls]

@confidentbeautyhs - No, I sold the GXP a little over a month ago. Time to focus on the Z06 now ;)

[confidentbeautyhs]

so u got 16 horse over stock? catted or straight DP?

[red07ls]

@confidentbeautyhs - Like description says, it was a catless downpipe...Never dyno'd it stock but figuring ~18%-20% drivetrain loss over 303hp crank about 16 peak whp gain sounds right.

[musicmaster20102000]

but SON OF A BITCH it was fast and it sounded efin AMAZING that i do miss

[musicmaster20102000]

i had to get rid of mine to the trans kept going out and i hated the car it was cool at first but the cars were junk and that comes striaght from an authorized GM dealler they had numerous issues with them and power steering was the first one

[torch189]

@jadon135 HAha, im 20 an mines over $300 a month for full coverage....

[jadon135]

would one of these be high on insurance for a 17 yr old male u think??