LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

Few track vids...

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Old Jun 5, 2009 | 09:50 PM
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Default Few track vids...

http://www.youtube.com/watch?v=g5r4h...eature=channel
http://www.youtube.com/watch?v=HSy7U...eature=channel

http://www.youtube.com/watch?v=VP9ythWiBaA (View HQ, I like how it sounds when I grab 2nd lol)

I hadnt taken it out to the track since I bought the car last June so I took a trip to the local track last week. Overall my best for the night wasn't any better than what I got when I had just bought the car, although I did trap a lot higher. I just couldn't get any better than a 2.2 sixty. I could've gotten all the runs I wanted that night but the engine/tranny just love to get hot quickly so after a few runs I called it quit after not being able to pull a 2.0 sixty as I did before.

So after that night I decided FORGET THIS FWD business. Downpipe will be sold, cutout likely to stay capped up, and weigh it down with some subs in the trunk. Time to focus on building a 383/396 stroker for the Z
At least I liked how the GXP sounded going down the track haha
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Old Jun 5, 2009 | 11:43 PM
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those are really good traps, that's practically what cars that run 13.5 trap.
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Old Jun 6, 2009 | 02:02 PM
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Yeah, I was kinda surprised how much mph I gained over stock with just a DP/cutout.
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Old Jun 7, 2009 | 01:39 PM
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The stock DP must be restrictive as hell. How do you avoid the CEL and to pass emissions with the catless DP?
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Old Jun 7, 2009 | 07:15 PM
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Rico,

The car sounds awesome! It flat out hauls too. Nice runs!

-Mike
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Old Jun 8, 2009 | 08:53 PM
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Some nice runs. I need this mod for sure.
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Old Jun 8, 2009 | 08:59 PM
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Originally Posted by Panther427
Some nice runs. I need this mod for sure.
Originally Posted by Mgpeagle
Rico,

The car sounds awesome! It flat out hauls too. Nice runs!

-Mike
Thanks!!

Originally Posted by highonpsi
The stock DP must be restrictive as hell. How do you avoid the CEL and to pass emissions with the catless DP?
I haven't done anything about the check engine light so it's been on the whole time, although I've only had the DP on for the past few weeks so it hasn't been annoying yet. I haven't had to worry about smog testing as new cars in CA don't need it until 7 years after first purchased new.
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