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

Debating on future of GXP

Old Feb 4, 2011 | 11:13 PM
  #21  
evil 5.3's Avatar
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From: bear,delaware
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Originally Posted by LS1 Racing
Cool! Looking forward to hearing about/seeing what you come home with.

Just a word of caution, though. If you go Duramax, be careful about jacking up the boost with an aftermarket tuner. Apparently, the motor can handle it with no problem, but the transmissions can't.

The guy that installed the TEP stuff in my trans ALWAYS those Allison 6-speeds in his shop, and it's always because the owner used a handheld tuner to add 150 HP, which exceeds what the trans can handle.
He is right they dont handle all that power right out of the box . But it is very little you have to do to it for it to handle the power and alot more
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Old Feb 5, 2011 | 05:50 PM
  #22  
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From: Killeen, Texas.
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http://www.tbssowners.com/forums/sho...981#post973981

17xxx for a 06 TBSS AWD, under 50k miles
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