What to do to a 2008 Tahoe?

[69TAPoser]

I just bought a 2008 Tahoe 4x4 (2WD is not an option here with the weather) with the LT3 Z71 package. Black on black leather with all the goodies. I am enjoying the truck so far (450 miles so far). :twothumbs

My only complaint (besides losing the 6CD changer when you have Navigation....c'mon GM!) is that it is too quiet. :screwy:

What do you guys recommend for aftermarket exhaust systems? Any other worthwhile mods?

Phil

[RaceMan]

do the K & N air intake , I just did on my 07 Tahoe and it did make a difference . I want to do the exhaust next , when I get the time , also I've heard and read some that the programmers can help.

[jy211]

Lift it! :drive1:

[harshman]

I’d like to figure out how to get the advertized MPG

How do I get it to use the 4 cylinder mode more often? Right now it switches when I’m going downhill. I put the K & N kit on and it made it peppier.

[69TAPoser]

I’d like to figure out how to get the advertized MPG

How do I get it to use the 4 cylinder mode more often? Right now it switches when I’m going downhill. I put the K & N kit on and it made it peppier.

I have been averaging 14.5 mpg with just city driving so far. I switched the trip odometer to show the instant mileage (it also shows when the motor gets cut to 4 cyl.) and I agree, so far it only seems to cut it to 4 cyl when you actually back-off the gas (coasting).

Phil

[LMDGUY]

Have you tried it on the freeway? our dodge cut to 4cly when you reach a constant speed.

[NvrDun71]

Can't go wrong w/ a Corsa Catback. Best catback on the market for the NBS and NNBS trucks and SUV's hands down. You also might look into a custom tune for it, handheld programmers are a waste of money for these trucks. There is alot left on the table w/ a factory tune, and w/ a custum tune via HPTuners or EFILive you will see more mpg and better all around performance.

[Fesler built]

Here is a 07 we just finished, black on black everything is black even the 6 piston Baer brakes, lights, wheels, Exhaust and grilles

We use the Magnaflow systems all the time with the Airaid intakes and they sound perfect and run awesome.

https://static1.pt-content.com/images/pt/2008/03/Img0091-1.jpg
https://static1.pt-content.com/images/pt/2008/03/Img0099-1.jpg
https://static1.pt-content.com/images/pt/2008/03/Img01091-1.jpg
https://static1.pt-content.com/images/pt/2008/03/Img0108-1.jpg
https://static1.pt-content.com/images/pt/2008/03/Img0115-1.jpg

[TonyL]

Doesn't the variable displacement thing only work when you are going under 55mph or something??

[TA219]

Here is a 07 we just finished, black on black everything is black even the 6 piston Baer brakes, lights, wheels, Exhaust and grilles

We use the Magnaflow systems all the time with the Airaid intakes and they sound perfect and run awesome.

https://static1.pt-content.com/images/pt/2008/03/Img0091-1.jpg
https://static1.pt-content.com/images/pt/2008/03/Img0099-1.jpg
https://static1.pt-content.com/images/pt/2008/03/Img01091-1.jpg
https://static1.pt-content.com/images/pt/2008/03/Img0108-1.jpg
https://static1.pt-content.com/images/pt/2008/03/Img0115-1.jpg

I used the longer magnaflow muffler on mine (18" if i remember right) mine had a nice sound but no drone to speak of

[PT Goat]

I have a Corsa Sport on my Avalanche - I've had lots of trucks with loud exhaust and it needed to be manageable this time. I must say, the Corsa rocks when I'm on it and it's almost slient at cruise. I didn't think it could be done, but Corsa did it. One downside - the sound is a bit annoying when it is in 4cyl mode, kinda raspy and then it lets out a good bark when it goes back into 8cyl. It was annoying enough that I deleted AFM when I had the truck tuned, but I recently had it reflashed and AFM reactivated when gas hit $4 around here. It's only a few MPG, but I'm going to see if I can get used to the sound.

[BobB66SS]

Check out www.tahoeforum.com. I snoop around there occasionally for info regarding my '07 Tahoe. It seems to have become pretty heavily a pimp-my-ride kind of site lately (LOTS of discussion on 22-26" wheels, stereo mods, interior bits, etc.) but if you do some searches there's a bunch of info on exhaust changes including the kit you can get directly from GMPP.