02SilveradoLT

Who's the best tuner to go through with a 8.1? From what I've researched "Westers" can apparently really do amazing things with the 8.1. Any others out there that are great with this big motor? All input is greatly appreciated!

xx_ED_xx

iTrader: (17)

short of getting a direct tune good luck...

dmelvin

iTrader: (8)

I asked Justin@Blackbear about tuning my dad's 8.1. He said that they tend to see good gains on them. His biggest concern was if it had started drinking oil yet.

Mike@Diablosport

iTrader: (2)

We offer great tunes for the 8.1 models, simple to use, easy to install, and great gains in power and mileage...

Thanks

xx_ED_xx

iTrader: (17)

this is NA

And 7 lbs of boost

Kerr

Everyone says they pick up very well. I think it depends on trans mission. As trucks have Allison and suv have 4l80e. I had good seat of the pants gains with HP tuners

xx_ED_xx

iTrader: (17)

This is true, why i have a manual

lawdog49

iTrader: (2)

old thread i know, but i had Justin do mine in person, and I am very happy. def feel the gains seat of the pants in my family hauler Burb 4x4. the guy at wester's was a real jerk the two times i tried to contact him. Justin always answers your questions and his customer service is A+

Whipped383

Any of you using efilive? Just curious where the best place to start or if anyone cares to share tune files? Everyone says remove torque management. And whats the deal with pocket programmers not being 8.1 specific? They pretty much work on all GMT800 gasoline trucks. My brother has a hypertech for his 01 5.3 and it says it works on my 8.1 as well. Im gonna plug it in and do a flash and then read it with my efilive just out of curiosity to see what they "change".

xx_ED_xx

iTrader: (17)

I would share my tune if i had a copy of it.. try to get it when i get back from deployment