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Yea, I saw the site that did the LS7 mod to a 2007 Tahoe. Apparently they are not doing anything to the drive train though and of course it can't handle the added power. To make it really feasable, you would need to beef up the whole drive train, tranny, rear end, transfer case, drive...

My Tahoe is getting 19 to 20 mpg on the freeway and about 14 to 15 in the city with stop and go traffic. I use Royal Purple synthetic oil in the engine which appears to help for about 0.5mpg. I have also put on a magnaflow catback and an airaid air intake which appears to have added another...

Shark, Thank you for the info.... Programmers here I come. or mmmmmmm maybe change the engine LS7. sbrug

I have a 2007 Tahoe and was wondering if anyone else has noticed that on full accelleration from a stop that they are a bit sluggish. Is this normal and can the dealer make any adjustments to the electronic throddle to make them a bit better? My Hoe 4x4 with the 5.3 3LT with Airaid air...