more power out of 5.3L

cey800 · Jan 19, 2008

'04 Yukon with a 5.3L. Just looking for a little more power out of the daily driver. Has anyone had tried a chip/tuner and or air intake system with this engine. If so what brand and thoughts. A little off topic for this site but there seems to be alot of general knowledge around here.
Cheers
:beerchug:

xsyourride · Jan 19, 2008

On my 04 yukon I put AirAid cold air intake and filter with a AirAid throttle body spacer.Gained a couple of points in milage and better bottom end and mide range power.

Misfit · Jan 19, 2008

I have heard from more then a few people that the tunners for gasoline engines is a waste of money. An engine is more or less a pump and the more efficient you can make it work the better your power and the better your fuel economy. So a cold air intake, spacer and cat back exhaust will be the best thing you can do for your Yuk. If you want to get more then headers, synth. oil, hotter spark plugs will all help out.

jeremy · Jan 21, 2008

i get a new truck on average every 6 months as i am a sales manager at a chevrolet store. I have done gm cold air intake, gm cat back performance exhaust on my last couple, and it does make a difference, and sounds cool. i bought the programmer from raven truck accesories on yellowhead, and they said that they sell a few of them to guys with the gm 5.3 litre. i noticed a huge difference in how it shifted, way crisper now. and it took out the speed limiter which made me very happy, and upped the rpms. I did a little research and went with a company that if anything happend to the truck, if gm wouldn't honour the warranty, they would back me up.

jeremy · Jan 21, 2008

oh yeah fuel milage, with my last one i drove from creston b.c. to my door stop in castle wood on one tank of gas and that truck had 4.10s exhaust and intake, no chip. i don't really notice a difference in milage, i always put premium in, and with how good my truck sounds i find myself on the gas a little more then maybe i should be!!!

crow · Jan 21, 2008

i agree with jeremy i have airraid cold air intake with spacer and cgs racing exhaust picked up a couple mpg and quite a bit on the bottom end. just bought an edge evolution with monitor (is that everyone they back up or just u jeremy)

crow · Jan 21, 2008

before this truck had a 04 ram hemi cost me 19 tanks of gas to goto Tofino with 27' wilderness pull behind trailer with my new truck was 9!!!!! And yes i have a heavy foot but had that heavy foot in both truck!

jeremy · Jan 21, 2008

you know what the scarry thing is, my truck looks like crow's. if you go to the classified and look at the fusion i have advertised there, there is a pic of my truck when i just got the sled this past summer. only diff is mine is a chev. they will fight for you in court against the manufacturer. i hope it would never come to that, especially with me being a dealer, but it is nice to know they are on you side. i just love the way it shifts now.
how do you like those gm 6" tube steps?? are those not the best ones!!
how have you liked the truck so far? what trim level is yours??

crow · Jan 21, 2008

i love the steps i just changed the grill, put some bed rails on and a chrome bug deflector. got the SLT everything but the nav. Although i did just buy one from ebay should be here in 3 days. doesn't come with antenna though...do you know which antenna i need?

jeremy · Jan 22, 2008

i think it may run through you onstar mast, and it loads all the maps from a disc that stays in the thing. i can check, just pm me your serial number and i'll get one the guys in the back to look it up. I would also try to somehow get ahold of gm if it is a gm one you bought because they will send you a new updated map disc every two years.

crow · Jan 22, 2008

ok i would really appreciate that thank you jeremy!

perry27 · Jan 24, 2008

best bet for more horsepower is to drop the new hemi in it im sure you will be amazed as for the body well leave it its nice lookin

duck · Feb 7, 2008

cey800 said:
'04 Yukon with a 5.3L. Just looking for a little more power out of the daily driver. Has anyone had tried a chip/tuner and or air intake system with this engine. If so what brand and thoughts. A little off topic for this site but there seems to be alot of general knowledge around here.
Cheers

I've got the air intake, magnaflow stainless exhaust and use the diablo motorsports performance tune in my avalanche with a 5.3. I know it works because I have another avalanche (wifes) that is completely stock and the tuned one is head and shoulders more powerfull now. Gas mileage only suffers when you got your foot in it which is hard to control because I love the roar. But, when your in control, there is no difference in fuel mileage. The computer still reads the same mileage when it was stock. Just alot more power. Don't let anyone tell you that you'll get better mileage.....ain't gonna happen. Do it only for the power and sound. Total cost was around $1500 for everything. Cheap way to get 50 H.P.

jeremy · Feb 8, 2008

duck said:
I've got the air intake, magnaflow stainless exhaust and use the diablo motorsports performance tune in my avalanche with a 5.3. I know it works because I have another avalanche (wifes) that is completely stock and the tuned one is head and shoulders more powerfull now. Gas mileage only suffers when you got your foot in it which is hard to control because I love the roar. But, when your in control, there is no difference in fuel mileage. The computer still reads the same mileage when it was stock. Just alot more power. Don't let anyone tell you that you'll get better mileage.....ain't gonna happen. Do it only for the power and sound. Total cost was around $1500 for everything. Cheap way to get 50 H.P.

i agree, hard to tell if getting fuel milage when pedal down all the time!!!!

Chrome · Feb 8, 2008

Wester's Garage in Tilley AB. They can custom tune an ECM for you to accommodate any other mod's you may already have done. I had one on my 01 4.8L, it would churp the tires when it shifted into 2nd gear. I had a hypertech on it before and it was garbage! With there ECM it gained just about 30HP proved on a dyno!

more power out of 5.3L

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