your not alone , just putting in a new mid-pipe and a Borla cat back on my 08 GMC sierra 6.0 ltr 4x4 Z71. I was a product of local exhaust idiot who cut the Y pipe and installed true duals with no x or h pipe and to my suprise these AFM trucks NEED back pressure , so if your cutting your stock ...

ok so I am the proud new owner of a DS Trinity tuner. looking for someone to help me in doing some minor tweaks to my tune to help maximize performance and reliability.

Truck Specs:

2009 Silverado 1500 Ext Cab w/ 5.3L FlexFuel V8.

Magnaflow muffler swap
K&N 63 Series CAI
Diablo Trinity Tuner

Hi. Im new to the DS family per say. I have a 2009 Silverado 1500 Ext Cab 2wd w/ 5.3L Flex.
Upgrades interior:
Katskinz full black leather
7" Factory Navigation w/ DVD and bose amplifier
Bluetooth VCIM swap
Driver info center add on
LED dome lights

Performance:
Magnaflow muffler swap(just swapped ...

So I want to jump into this conversation about torque management adjustments. I have a 2009 Silverado 1500 Ext Cab w/ the 5.3L Flex 4spd. I am wanting to make my truck to live up to its potential NOT a fast and furious ride just better all around performance and durability. I would like to know more ...