Air Diffusion holes
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From: dc,md,va
Car: 89 Camaro RS
Engine: 305/350
Transmission: 700r4
Axle/Gears: stock
Air Diffusion holes
Has anyone one here seen a third gen with the holes cut in the rear bumper just wondering how it looks on a camaro. If so post a pic i can't find any with them.
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
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Re: Air Diffusion holes

Not even sure what your talking about, or why someone would want holes in their rear bumper.
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From: dc,md,va
Car: 89 Camaro RS
Engine: 305/350
Transmission: 700r4
Axle/Gears: stock
Re: Air Diffusion holes
drag car's actually use them because your rear bumper act as a parachute at high speeds so putting hole's in them actually cut's a little time off your pass.
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Air Diffusion holes
Hmmm....How about a belly pan piece, to smooth under body air flow instead?
Cutting holes could air air escape, but I would think a better goal (IMHO) would be to not let it get up there to begin with.
Cutting holes could air air escape, but I would think a better goal (IMHO) would be to not let it get up there to begin with.
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From: dc,md,va
Car: 89 Camaro RS
Engine: 305/350
Transmission: 700r4
Axle/Gears: stock
Re: Air Diffusion holes
It should work i just haven't seen a third gen with them just wondering how it looks and the purpose is for the air to escape and not be held in the bumper i guess.
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From: dc,md,va
Car: 89 Camaro RS
Engine: 305/350
Transmission: 700r4
Axle/Gears: stock
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From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Air Diffusion holes
its going to look rice, dont do it. It wont prove anything either.
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From: Fairhope, AL
Car: 89RS(other cars & pics in vBgarage)
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Transmission: BakerBuilt 700R4 w/B&M Megashifter
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Re: Air Diffusion holes
watch out someone may think its a glory hole 
but ummmm thats kinda to rice lookin, im sure someone on here could photo shop some holes for you to get an idea of how it would look

but ummmm thats kinda to rice lookin, im sure someone on here could photo shop some holes for you to get an idea of how it would look
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From: 47798 Germany
Car: '89 RS camaro 305 TBI
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Re: Air Diffusion holes
Unless you removed your trunk the car does not need holes in the rear bumper. There is very little space where air could get caught up which means there is no benefit to be had.
Last edited by the solitaire; Jul 28, 2009 at 10:26 AM.
Thread Starter
Junior Member
Joined: May 2009
Posts: 53
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From: dc,md,va
Car: 89 Camaro RS
Engine: 305/350
Transmission: 700r4
Axle/Gears: stock
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iTrader: (12)
Joined: Jul 1999
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Air Diffusion holes
Just put a "belly pan" under the rear area & the problem is solved, without looking stupid.
Thread Starter
Junior Member
Joined: May 2009
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From: dc,md,va
Car: 89 Camaro RS
Engine: 305/350
Transmission: 700r4
Axle/Gears: stock
Banned
iTrader: (12)
Joined: Jul 1999
Posts: 12,212
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Air Diffusion holes
No channels to route air out, Just a FLAT plate underneath to keep air from going up under the car.
Nobody would see the underside & know its even there, unless you tell them.
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From: sunny so cal.
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Thread Starter
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Joined: May 2009
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From: dc,md,va
Car: 89 Camaro RS
Engine: 305/350
Transmission: 700r4
Axle/Gears: stock
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From: N. Virginia
Car: 1988 Firebird - 1998 Z28
Engine: 2.8 - LS1
Re: Air Diffusion holes
People should do that with EVERY car to fix the problem.
To me it just looks like a ghetto racer mod.

I have no problem visioning a third gen with them in my mind. I have a problem with getting the vision OUT of my mind. lol
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From: Owensboro, Ky
Car: 1987 Iroc-Z28
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Re: Air Diffusion holes
hey i know were one is!!! but first you have to get a hole saw and cut some holes in you bumper for the r. ice to poor through
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From: dc,md,va
Car: 89 Camaro RS
Engine: 305/350
Transmission: 700r4
Axle/Gears: stock
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