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Thread: off the wall but here goes
03-14-2010, 09:52 AM #1
off the wall but here goes
The 5.7 motor has a black box on the intake right behind the throttle body. Any ideas what it is for ? Ive been looking at the cold air intakes most of them get rid of this box. I cant afford to get one right now but what if i went and took the box off and plugged the hole. Think it would do any good. Being poor sometimes sucks you always think up strange stuff.
03-14-2010, 10:30 AM #2
- Join Date
- Dec 2009
im not sure what its for but the truck is fine without it i put a cold air kit on my 96 350 vortec and that thing went in the trrash, i know they are not cheap but they are worth the money, the only thing i dont recomend is the throtle body spacer i should have just burned my 100 bucks on that one
03-14-2010, 10:59 AM #3
That box is a noise suppressor put on by the engineers. There's another one between the fender and the filter box. They put them in to make the govment happy.
I used stainless duct tape to cover the inlet on the one by the fender, and fitted a paint can cap into the one on the tb. Looks stock, flows better, sounds better.
These are why everyone says their truck sounds better when they add a CAI - no mufflers.
1999 Chevy K2500 Suburban 350
K&N, reworked cai, Thrush cat-backs
Vinyl, cranks, floor shift, and rear air!
03-14-2010, 04:20 PM #4
Throttle body spacers are only benificial on trucks with throttle body injection, not on vehicles with sequential fuel injection like the '96 and newer vortecs.1995 Silverado,Z71, 3-inch lift,2-inch leveling kit, SkyJacker Suspension, short ram-air intake, throttle body spacer, MSD ignition coil, straight pipes
03-14-2010, 05:31 PM #5
Sweet thanks guys I never thought of a paint can cap to plug it off Ill have to try it.
03-15-2010, 02:21 AM #6
- Join Date
- Dec 2009
well the guy at summit should have told me that before i ordered it
anyways you need to do the cold air kit on your truck i did mine at 230 thousand miles on my original motor along with dual exhaust and the power increase was very noticable
03-15-2010, 10:11 AM #7
Right now i have a k and N airfilter, the exhaust reworked and small add on stuff for looks. Its coming along slowly
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