My 6.0 is Really Slow!!! (GM)

[Graystroke]

Ok, I always heard that the 6.0 LS motor was sucky in the burban. I have to agree. It only gets a mile better MPG than my old 454. My 454 would smoke this truck from a stand still and on the highway. The 454 had way more power for passing/ cruising grades. Everything else on this (6.0) truck is better than the old (454) except for the motor. The 6.0 has significantly more HP. I think the 6.0 is 325 HP/ 370 ft-lb. My 454 made 290 HP and had 410 ft-lb. I guess that torque made all the difference.

So....
I want to hop it up. I figure nobody has done any tow mods to a gas truck on here lately.
I was thinking of doing a full or cat back exhaust....I do not want Jerry Goss style nascar dump canadianess. I want quiet w/ a barely noticeble tone.

Intake? Full replacement? Worth the money?

Cam? Are they easy? Can you just pull the front cover and spin the cam? Will the lifters stay up like they are suppose to or is there a chance I will have to pull the intake b/c it doesn't work like it is suppose too?

Fred, Ryan: Who is that guy in Oklahoma that tunes? Is it worth the bucks? Could I skip all of the above and just do that? Or should I do intake/exhaust and then reprogram?

I'm looking to get the torque numbers up so this thing has more balls and doesn't bog on long grades or it would be nice that I could actually increase my speed w/o the converter unlocking everytime.

[bburris]

The K&N kit made a really noticeable difference with my old truck, same story on the Tahoe.

[eight]

Check into programmers. They give a little more power even on cheap gas and usually have some options for the transmission.

[Reckless]

The superchips tuner my dad had made alot of difference. Much more HP and MPG than the hypertech that he had.

[Doug Krebs]

I know the guy who did the exhaust on the red rocket. I'll let him know you're a fan.

[jerryg79]

show me a black guy with dumps

[Fredo]

http://www.fawcettperformance.com/pr...roducts_id=441

or call these guys and see if they need a test vehicle to use to build a truck kit
http://www.airpowersystems.com/ls1/us_gto.htm

or this:
www.itsa6500lbtruckitsnotgoingtoeverbefast.com

Really, just throw a k&n intake setup on it, put an exhaust on it if you can handle the drone, and maybe get a programmer for it. Other than that, leave it alone. It's too high of mileage to just go throwing a cam in it anyway.

[RCcola55]

Cookie just put a catback setuo on his 5.3 and its not loud at all

[DRAGOONRANCH]

Cookie just put a catback setuo on his 5.3 and its not loud at all

???

[stx4wheeler]

i agree i am not impressed with the power of my 6.0 2500 hd but since it i a company truck i am surely not gonna sup it up. The newer models that come with the 5 sp auto are getting about 2-3 mpg more that my 02 with the 4spd auto and 4.10's. They also seem to have more pep as well.

[BMFScout]

flip the top part of your air cleaner over.

[agjohn02]

flip the top part of your air cleaner over.

makes it sound good too

[Graystroke]

according to some forums I read the 6.0 is really loud w/ an exhaust. I guy posted an email he got from a Magnaflow tech and he said flat out they really don't know why it is so much louder than other LS based motrs and if he decides on an exhaust be prepared for some serious resonance inside the vehicle. I think I will do an intake and see what that does and then go w/ a chip. I have seen afew on C's List. Any reason not to buy one of those off of their.

Fred, I know it is a heavy ***** but the old beast had a lot more pick up off the line and wasn't nearly as good as motor. This thing lacks the power to cut people off...which I hate!

[AggieTJ2007]

yeah, my friend put 2 flowmaster 70's or something like that and they are anoying

[Graystroke]

what else is good besides Superchips.