air intake

[cowboys toys]

Parents bought an 2010 duramax. Wondering what aftermarket air intakes you guys are runing, and if you noticed a difference when you put it on. Truck is completely stock right now. :thankyou2:

 

[emiller3]

If you insist on having one get a s&b system,But you could do just as good by cutting the box.

 

[JD4440]

http://www.pacificp.com/pdf/Airbox_Modification_v2.pdf
This is all you need; and it's free to boot !
I run a hacked up version of this mod at right over 500hp.