Exhaust & Intake
 

looking to put exhaust and a intake system in my 99 cummins any one have any suggestions on what brand is better then others, or which ones they have had the best results with?

4" from whatever brand you want.

forget the intake tube crap. does nothing.

get a big honkin air filter (google it) and put it on the end of your stock intake tube. :tu:

not much to gain with an exhaust until you upgrade the turbo... mostly you just gain noise. you have about a 2-2.5" restriction at the turbine wheel. BHAF or SB if you want something fancy.