thinking about cai and exhaust on the trailblazer

[1quick]

I have been thinking about doing a cai, headers, cat back and tune on the trailblazer, but its only the 5.3, is it going to be worth all that or should I just do cai and tune and call it good, I just want a little more pep and better gas milage

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[Smokinhot]

all of that would help, the tune would be the best IMO

 

[1quick]

would the gain with headers and exhaust be worth the money if I dont plan to do anything else or should I just stick with a tune and cai

 

[Smokinhot]

headers and exhaust w/o a tune would hurt you more, bc it'll cause you to go rich. The CAI and tune would give you the best performance and gain in MPG's. The factory tune is very restrictive

 

[SMRTSS1]

Most exhaust work on Trailblazers give you minimal gains at best, if you want better sound do the exhaust work otherwise a tune, CAI and efans will help the most with making it a little peppier. My mpg's actually went down a bit with fans, intake and a retune but I have the 6.0.

 

[Smokinhot]

the 5.3 would gain a lot from a tune! I didn't think about putting the e-fans on. Those 3 (e-fans, cai, tune) would show a lot of improvement. Then later on put on some exhaust. If you wanted some sound for the time being, invest in just a drop in muffler till you can afford the catback/header setup. That's all I did

 

[1quick]

I was thinking about just takeing the resonator off the stock stuff to give it a little more sound for right now, can you get a mail order tune for these or what shop would be best around joliet area for a dyno tune

 

[Smokinhot]

Finishline Performance in Naperville

Straightline Performance in New Lenox

for a mail order, contact this guy and see what he could do for you http://gowheatley.com/

There have been many people that were happy with his MO tunes on the truck forums

 

[CrunkMaro]

def go with the tune, no matter what you do.

mail order tuning has its places...emissions deletes, basic startup tunes, trans tunes etc...

but if you are wanting to get personal, private, custom calibration on your truck, nothing is going to help like an actual in person tune..street or dyno.

remember, a dyno doesn't make your car go any faster, its just a tool for tuning, makes it easier to hit every possible map/rpm combo, to cover every variable without having to worry about traffic, or traffic laws.

i say you invest in a tuning software for yourself.

its fun.


minus all the numbers.