usetaboost
SAY CAR RAMROD!!
- Joined
- May 4, 2005
A good forum for these trucks is denalitrucks.com. There are guys on there with denali suvs and trucks from every year, bodystyle, etc. Even some guys on there with tahoes/trucks with the 5.3l. Im glad someone on here said that the 5.3 is a dog, i said the same thing on here once and was basically crusified. As far as mileage, my westers tuned 99 model z ext cab with the 5.3 i got probably 14 if i remember. My new truck with awd and the 6.2 gets about 15.5-16, but i keep my foot in it quite a bit.
I think with adding dual exhaust you lose a bit of low end torque. I sometimes wonder if adding a CAI and dual exhaust if the program needs changed. I'm not going to count the 5.3 out yet though, I've noticed the rubber seal on my CAI is bad and I'm gonna add taylor wires and new plugs after I get the suspension and steering tightened up.
BTW, another common problem on 00-06 trucks is idler and pitman going bad. Kinda spendy at 100 bucks a piece. Also, if the stock tenneco shocks are still on it, they need replaced. They tend to break. Especially while towing. It happens a lot, and even my neighbor had one break and he was just pulling a bike trailor. Cheap ass GM, shoulda kept with the bilsteins. S10 trucks and avalanche get them but the z71 and other trucks don't That's the most tarded thing I've ever heard