Anyone that can tune a 2009 gmc sierra 5.3l?

[OrangeF150]

Dont like the way the trans shifts/shifting points. Or when it kicks into V4 mode.No power adders or anything

 

[Golden]

Contact GTPprix. I am sure he has something for it.

 

[chacho44]

I had Sean at cars do my 00 Yukon with a 5.3. Cai, vette servo is all I had. Really woke it up even with the little mods I had.

 

[chacho44]

Or check this website, if u have a gm truck u must check this out. WWW.performancetrucks.net

 

[1BadSn95]

Take it to Dr. Phil. He's the man!

 

[P.F.M.]

Take it to Dr. Phil. He's the man!

X10000 dont waste yer time anywhere else..

 

[Scooter70]

Prick.

 

[84mercury]

call Livernois Motorsports put a cold air and catback on the thing get some sound power and milage. then you could justify paying for a custom tune. Hard to do when vehicle is stock(if it is)

 

[my89notchback]

Dont like the way the trans shifts/shifting points. Or when it kicks into V4 mode.No power adders or anything

Call Stan Boyd at EVI in Davison or Swartz Creek. Mark manages the Davison shop and Stan the Swartz Creek shop. Stan owns the business and will tune it for you on the dyno. Tell him Chris sent you.