Most of the kits for these trucks will use a 22" stainless muffler with either single inlet single out (for the 4.8 and 5.3) or dual inlet single out (for the 6.0). My magnaflow is a bit annoying around 82 or so but I've heard some flowmasters on tahoes that reminded me of firing an ar-15 into a metal garbage can. I'm adding quite a bit of sound deadener for my stereo, these trucks have thin floors which contributes greatly to the drone on most aftermarket exhausts. Even my buddy's denali with the corsa touring system will drone around 78 just slightly. Also for anyone with a denali thinking of lowering your truck please have a system built after you lower the truck...I have to redo my entire system since the pipe is hitting on my axle with the 3/5 drop. I kinda wanted an excuse to buy some longtube headers anyway.
Yes but there are different sizes of the actual muffler too, like 3.5x7, 4x9, 5x11, 5x8... the one that comes in the cat back kit is 5x11. But I most likely wont get the whole kit just the muffler and have the shop put it on. Also I've looked on the internet a while and cant find what im looking for Does anybody make a rear bumper/roll pan that has like dual exhaust cutouts or half circles in them kinda like the new Dodge rams do? So it will depend on how hard and expensive it will be to do the dual out the back or just single out the side.
I dont actually have the tahoe yet but I will be getting a loaded 03 LT 4x4 from a family member in may or sooner. It is completely stock but I want to do a few things to boost the mpgs. I am planning on getting an AEM Brute Force intake, exhaust, and hypertech max energy or e-con(havent decided yet).. Do you guys have any other relatively inexpensive improvements to suggest? for both power and mpgs...
thanks
