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08-04-2008, 08:09 AM
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#1
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Join Date: Sep 2004
Location: New York City/ Cape May
Posts: 1,047
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Umm... what are these for?
I drive to work all the time seeing these little hatch back ricers. I have started to notice on a lot of them they have these odd Holes in the bumpers... and for the life of me I can't figure out why or what the hell they could be for?
So today on my way into work I took a picture of one with my phone (sorry for the quality).
Anyone care to explain it to me 
JW 
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Fbody - 2002 WS6 Trans Am Sunset Orange M6
Daily Driver - 2017 Silver Subaru Forester XT
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08-04-2008, 08:10 AM
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#2
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Join Date: May 2006
Location: Midland Park, NJ
Posts: 1,389
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Air flow
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08-04-2008, 08:12 AM
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#3
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,476
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Speed Holes!!!!
- Justin
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1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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08-04-2008, 08:20 AM
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#4
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,938
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Weight loss?
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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08-04-2008, 08:30 AM
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#5
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,938
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"Yes, there's a "Replacement for Displacement". Its called Volumetric Efficiency."
I was bored so I tried to find your answer on some civic forums. Needless to say, I am dumbfounded, and still have no answerr.
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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08-04-2008, 09:02 AM
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#6
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Join Date: Nov 2004
Posts: 3,530
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So the air doesn't get trapped in the bumper? Access to spots to tow them home?
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08-04-2008, 09:03 AM
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#7
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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I think they are places to put empty beer cans.
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08-04-2008, 09:05 AM
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#8
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Lord of the rings / 10 Second Club / Meet Coordinator
Join Date: Aug 2004
Location: Millstone Township, NJ
Posts: 6,387
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relieve air that gets trapped behind the bumper. Supposedly it serves a purpose on the actually fast imports but it seems to have been adopted by all the ricers that trap less than 100mph.
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97 T/A Ram Air Convt
Forever dyno queen / 777rwhp 662 rwtq @ 17lbs / 10.2 @ 140
'24 Corvette Z06
'17 Sierra 2500HD Dmax
'17 Lex LS460
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08-04-2008, 09:06 AM
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#9
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,938
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Since when I drilling holes in your car aerodynamic?
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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08-04-2008, 09:10 AM
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#10
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Lord of the rings / 10 Second Club / Meet Coordinator
Join Date: Aug 2004
Location: Millstone Township, NJ
Posts: 6,387
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Quote:
Originally Posted by Shownomercy
Since when I drilling holes in your car aerodynamic?
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typically it isn't but if a body part traps enough air it will create drag. You won't catch me drilling holes in my bumper thats for sure lol
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97 T/A Ram Air Convt
Forever dyno queen / 777rwhp 662 rwtq @ 17lbs / 10.2 @ 140
'24 Corvette Z06
'17 Sierra 2500HD Dmax
'17 Lex LS460
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08-04-2008, 09:17 AM
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#11
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Join Date: Sep 2004
Location: New York City/ Cape May
Posts: 1,047
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I kind of figured it was something to do with airflow. I do remember having a conversation once with Brandon about air getting trapped up under the bumper... but then again he has a 10.9 car and this is probably a legit problem for him. As for these ricers ... I just think if one of them does it .... they all do I guess.
JW
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Fbody - 2002 WS6 Trans Am Sunset Orange M6
Daily Driver - 2017 Silver Subaru Forester XT
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08-04-2008, 09:45 AM
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#12
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Join Date: Dec 2005
Location: Boston/North
Posts: 9,214
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hm.. always wondered what those were for
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Quote:
Originally Posted by BonzoHansen
dumbass.
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08-04-2008, 10:33 AM
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#13
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Banned
Join Date: Jul 2008
Posts: 190
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i work on honda and they are for some show but mostly the rear bumper hold alot of air in it
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08-04-2008, 10:53 AM
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#14
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Join Date: Apr 2006
Location: Point Pleasant
Posts: 1,809
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Speed holes flanders
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-Vinnie
94 2wd SBSC Gmt400. 330CI LSX, Fast 102, Trickflow 205s, close ratio nv3500, 4.30/trutrac.
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08-04-2008, 10:54 AM
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#15
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Join Date: Mar 2008
Location: Somerset, NJ
Posts: 4,223
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yeah all of these are called rear diffuseres..i own a civic and im up on some of the dumb things ricers do. they believe air gets trapped behind their bumper so they drill a hole and put the diffusers on.
however, just now that entire honda scene is just now realizing its dumb and they are all stopping it now
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Jon
1999 Trans am WS6
1996 Corvette LT4 6 speed
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08-04-2008, 10:57 AM
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#16
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I <3 sheep
Join Date: Mar 2005
Location: Belmar
Posts: 4,907
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So let me get this strait, they drill holes in a bumper..... on a car that doesnt go fast in the first place?
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Quote:
Originally Posted by Tru2Chevy
Steve has a thing for sheep....
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'78 Big Wheel- 2FWFP
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08-04-2008, 11:22 AM
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#17
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Join Date: Jul 2004
Location: West Long Branch
Posts: 13,598
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Thats where the VTECK gets its power from...
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2/20/2013: They Day the ****s Stopped
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08-04-2008, 02:10 PM
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#18
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Queen of Destruction / NJFBOA Supporting Sponsor / Moderator / 12 Second Club / 2006 Member of the Year / PITA
Join Date: Aug 2004
Location: I dunno..
Posts: 8,327
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6 outlet exhaust!!!
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We're a drinking team with a racing problem.
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08-04-2008, 02:36 PM
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#19
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Join Date: Oct 2004
Posts: 493
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Flux Capacitor
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08-04-2008, 02:52 PM
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#20
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Mr Fantastic
Join Date: Aug 2004
Location: West Milford NJ
Posts: 7,917
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i call them speed holes...but they do serve a purpose if the car is actually fast
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Matt
B18B1 FTW
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08-04-2008, 03:57 PM
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#21
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Join Date: Feb 2005
Location: PA
Posts: 491
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They're Dikfors (trademark registered) 
Last edited by rscamaro73; 08-04-2008 at 03:57 PM.
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08-04-2008, 04:02 PM
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#22
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Join Date: Jan 2007
Posts: 5,623
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its to make it look like the bumper was removed...they aren't even holes just a sticker that looks like the bumper mount...seen it many times in my pepboys days
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2000 Tahoe Z71 5.7
1982 Z28 Pacecar 305
1999 S10 
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08-04-2008, 04:03 PM
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#23
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Mr Fantastic
Join Date: Aug 2004
Location: West Milford NJ
Posts: 7,917
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Quote:
Originally Posted by bubba428
its to make it look like the bumper was removed...they aren't even holes just a sticker that looks like the bumper mount...seen it many times in my pepboys days
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there are ones where you actually cut the bumper and put the metal insert in too
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Matt
B18B1 FTW
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08-04-2008, 04:15 PM
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#24
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Join Date: Jan 2007
Posts: 5,623
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yea i've seen those, but they are 90% just stickers
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2000 Tahoe Z71 5.7
1982 Z28 Pacecar 305
1999 S10
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08-04-2008, 04:23 PM
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#25
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Join Date: Dec 2005
Location: Boston/North
Posts: 9,214
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Quote:
Originally Posted by bubba428
yea i've seen those, but they are 90% just stickers
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for you maybe. every time I've seen it they've actually taken a drill to the bumper
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Quote:
Originally Posted by BonzoHansen
dumbass.
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