Programmer for L6 4.2L Engine.

[bunso]

Does anyone know any good programmer specially to increase MPG and HP. I've been looking for one but all i can find is for V8 only.

for 2003 Envoy XL 4.2L

 

[Molson02536]

Does anyone know any good programmer specially to increase MPG and HP. I've been looking for one but all i can find is for V8 only.

for 2003 Envoy XL 4.2L

Give these guys a call, http://www.pcmforless.com/. They will be more then happy to help you get your Envoy's PCM tuned for your personal performance and economy setting.

Good luck and keep us posted.

 

[bunso]

Molson.... Thanks for the info...