I've got 07 GMC classic 1500 4x4 e-cab, short box w/5.3L VIN B (L33). Now here's the thing only have abit of money to throw at this thing. Should I put a good air box or an exhaust system first. I need your help please and Thanks eh

 

exhaust and a airaid mit tube. don't go full intake.

 

Pick a muffler and get it welded in, best way to change exhaust on a budget. There really isnt a need to do a full catback.

 

I agree. Get a good muffler first. A great sounding flowmaster knock off is forzza flow they sound way better imo. Nice and crisp. A cheaper way is have it dumped befoer the axel. You can even have it turned towards the tire. Just make sure its behind the tire if you have them turn it. Then get a cold air intake. Volant makes a good one for the $$. It sounds pretty goos to at WOT.

 

Thanks for the help gents

 

I wouldnt waste the money on a CAI, but a good muffler makes you feel faster