the usual questions

[psycho91]

OK I asked these on the old site and I didn't really understand there answers of they don't work, but will a cold air intake and an aftermarket exhaust do anything performance wise,

Also will a trans cooler do me any good if I'm not racing it, this is my daily driver

 

[ItsOnVoy]

OK I asked these on the old site and I didn't really understand there answers of they don't work, but will a cold air intake and an aftermarket exhaust do anything performance wise,

Also will a trans cooler do me any good if I'm not racing it, this is my daily driver

Honestly from what I have noticed from friends with them and all and what they tell me from there experience, the intake does give the car a smoother accel and the exhuast depending on what you get will give you a different sound.

correct me if I am wrong anyone because this is what I was told at least

 

[hitman]

OK I asked these on the old site and I didn't really understand there answers of they don't work, but will a cold air intake and an aftermarket exhaust do anything performance wise,

Also will a trans cooler do me any good if I'm not racing it, this is my daily driver

COA are touch and go by the sounds of it, i have been asking the same questions and seems there isnt much power gains from cold air intake...exhaust unsure and a trans cooler would be a great improvement if your towing...big power gains seems to be pcm for less everyone on here raves about them

 

[The_Roadie]

Best bang for the buck mod where you can also change the shift firmness is a PCM tune. PCMforless is a vendor here.

 

[Blckshdw]

The biggest impact a CAI and exhaust overhaul will give you, is a change in sound. Also note, an I6 will never sound like a V8 no matter what mods are tried.

 

[jrSS]

OR.....the v8 will never sound like an i-6.

 

[03envoy]

Best bang for the buck mod where you can also change the shift firmness is a PCM tune. PCMforless is a vendor here.

What Shift firmness did you go with Roadie?


I am thinking 2......

 

[ItsOnVoy]

The biggest impact a CAI and exhaust overhaul will give you, is a change in sound. Also note, an I6 will never sound like a V8 no matter what mods are tried.

You can get pretty close though

 

[ieatglue]

What Shift firmness did you go with Roadie?


I am thinking 2......

I went with 3 and it still isn't firm enough. Corvette servo and an 0.049 boost valve are the way to go

 

[Boricua SS]

yup... an exhaust (even for us SS folks) doesnt do anything but add noise...CAI, pretty much the same... sure it helps breathe a little better.. but worthless IMO... like the Roadie and many others have raved about (including myself since i have one on the SS), the Tune will net you the best "bang for your buck" performance improvement..

and a tranny cooler can only help weather youre racing, towing, or just a DD... a cooler tranny, is a happy tranny..

 

[STLtrailbSS]

OR.....the v8 will never sound like an i-6.

DAMN!

Anyway I think yo get the trend here...TUNE IT!

 

[psycho91]

I figured it would be for agitation and giggles, the tune was the first on my list, what about gutting the air box and adding a high flow filter

 

[The_Roadie]

What Shift firmness did you go with Roadie?

The firmest. I was very upset when I looked into the shift tables using EFILive, compared the Envoy to the Trailblazer stock tunes, and discovered GM had added an EXTRA 0.25 seconds to the Envoy's shift delay, I think from 1-2. After we all assumed the two brands were otherwise identical, I found GM made *my* OEM shift performance even mushier than the sister vehicle. Damn them.

 

[psycho91]

What are y'all doing with the vet servo and boost valve, the boost valve leads me to believe you are running a turbo