Looking into an exhaust system for a 3.OL Duramax AT4 - Can anyone point me in the right direction? Looking to add a little more noise. Not necessarily doing it for for extra Torque or Horsepower.
I was just wondering if I could get away with doing my 3 inch straight pipe and cold air intake before I get my gauges, on my 1993 chevy 2500. Any opinions are appreciated.
I recently purchases a 1993 GMD 2500 with the 6.5 diesel. was thinking about changing the exhaust from the turbo back. 3" downpipe then 4" back. If i do this, will i have to tune it also. Thanks for the help