FIRST UP GRADE

[JD Diesel]

Put on the banks monster exhaust 3 days ago. Truck seems to run much better. milage apears to have gone up some. so far so goood. Also found out that I can get a non cat head pipe from them tooooo Very interesting I think. JD :D

[JD Diesel]

Next up grade diablo tuner and citago leveling kit. JD :D

[sluggerjoe]

Has anyone with an LLY removed the cat successfully? I haven't heard any success stories about the GM's yet but the Cummins guys report a 1 to 1.5 MPG improvement.