I was wondering what i would benefit more from. My truck is a 2004 Silverado 2500HD with the 6.0L. I have true duals out the back with dynomax bullets and magnaflow x pipe and also an airaid intake. Im looking for a more agressive exhaust sound as well as power so im leaning towards longtubes. But i have heard nothing but great things about Nelson's and PCMFORLESS's tune. So which will i gain more power from? thanks

 

The long tubes will screw with the air fuel ratio. This will make you need some sort of tune.

See where I'm going

 

Do both

 

Long tube headers will richen you up a little. I would do both.

 

ohhh i got ya. Time to start saving some more money then.

 

If you're only going to do one, I'd do the tune. If you later get the headers down the road then just have it retuned.

--Dave

 

get the tune and then the headers. or both together.