What's with the stock grills? - Ford Mustang Forum
LinkBack Thread Tools Search this Thread
post #1 of 10 (permalink) Old 12-14-2012 Thread Starter
PONY Member
S197 Member
spitfire009's Avatar
Joined: Jan 2012
Location: Plano
Posts: 325
What's with the stock grills?

I've always wondered, why do the mustang's stock grills have barely any opening in the 05-todays? If anything it looks like these block off some air to the intake.

Attached Thumbnails
Click image for larger version

Name:	FR31100010AA_2010_Mustang.gif
Views:	789
Size:	58.6 KB
ID:	168094   Click image for larger version

Name:	05-09 GT front-end.jpg
Views:	3799
Size:	151.7 KB
ID:	168095  

2011 Mustang GT black. Mods: JLT CAI, JBA Long Tube Headers Catted H-pipe, GT500 axle back, Bama 93 Race tune, Koni STRTs, Speeda Sports, GT500 mounts, BMR LCAs, relo brackets and panhard bar
spitfire009 is offline  
Sponsored Links
post #2 of 10 (permalink) Old 12-14-2012
GT Member
5.0L Member
ShortySmalls's Avatar
Joined: Oct 2011
Location: Goose Creek, SC
Posts: 1,375
ive been wondering the same thing, and every aftermarket grille i can find, atleast for the 3.7 that is, is just something you screw on over the stock grille so they block the airflow even more.

2016 Mustang GT 5.0 Magnetic Metallic Performance Package
Interior - Recaro Bucket Seats, Weathertech Digital Fit Floor Mats, Diode Dynamics LED Visor Mirror Lights, LED Glove Box Light, LED Trunk Light, and LED Map Light
Exterior -Dealer Installed Shelby GT350 Racing Stripes, SunTek Carbon 15% Tint, Diode Dynamics LED Switchback Blinkers, LED Reverse Light
Performance - MBRP Race Series 3" Catback
ShortySmalls is offline  
post #3 of 10 (permalink) Old 12-14-2012
5.0L Member
Daryl's Avatar
Joined: Jan 2008
Location: Silsbee
Posts: 242
I wondered the same thing, but looking at the bottom opening it is a pretty big opening. Maybe?

What's with the stock grills?-blacked-out-front.png

2011 5.0 Gt Premium, Black,Stone Interior,400A, Shaker 1000,3.55 Gears, 19" Pirellies, Air Raid CAI, Roush Axel Backs, Bama 91 performance Tuned, Roush body package.
Daryl is offline  
post #4 of 10 (permalink) Old 12-14-2012
PONY Member
S197 Member
frankp's Avatar
Joined: Dec 2011
Location: Corona
Posts: 378
frankp is offline  
post #5 of 10 (permalink) Old 12-14-2012
PONY Member
GM Convert's Avatar
Joined: Jul 2012
Location: Suburbs
Posts: 324
Originally Posted by spitfire009 View Post
I've always wondered, why do the mustang's stock grills have barely any opening in the 05-todays? If anything it looks like these block off some air to the intake.
It's more aerodynamic, and thus more fuel efficient.

Since the air intake isn't forced induction opening it up wouldn't make a bit of difference as far as engine performance goes, but the added drag caused by more air being funneled into the engine compartment with no proper exit would reduce speed and fuel mileage.

However, living in Texas, the one thing that does worry me is restricted air flow through the radiator. I really worry about the car overheating if I ever get stuck in stop and go traffic in 110 degree weather.
GM Convert is offline  
post #6 of 10 (permalink) Old 12-14-2012
SHELBY GT 350 Member
Strange Mud's Avatar
Joined: Apr 2011
Location: small town CT
Posts: 5,387
I'll :?: the aerodynamic (respectfully) I can not imagine the solid flat surface of the grill being more aero than the same shape with openings.....I suspect the Tsat will just open more but don't know.

I will say I have never had a car that gives heat from the heater core quicker than this one. Even in upper 20's/lower 30's I have heat by the end of my driveway/street which is about 1000' I drive slow down it in 1st gear about 15 mph just almost coasting downhill.

2012 V6 traded in for a 2017 VW GTI.
Strange Mud is offline  
post #7 of 10 (permalink) Old 12-14-2012
PONY Member
V6 Member
S197 Member
2011 V6 Stang's Avatar
Joined: Aug 2010
Location: Inland Empire
Posts: 540
It's for efficiency and emissions the quicker it warms up the less emissions u emit. And surprisingly u get better mpg's. And don't worry about over heating our rad cooling fan can keep up. Last time I we to Vegas only a few months ago on the 15.climbing outside temp was 127 degrees!!! It's an 18mi climb and I ran my AC non stop temp didn't budge an inch so dont worry about over heating

Sent from my ADR6410LVW using AutoGuide.Com Free App

2011/Kona Blue/Auto/V6/2.73's
Purchased 8/9/10
Mods: Bama 91s/Spintech Axleback/K&N Drop in
2011 V6 Stang is offline  
post #8 of 10 (permalink) Old 12-14-2012
5POINTO's Avatar
Posts: n/a
Mustangs don't have any grills, leave those to Weber and 50 Cent. Mustangs have grillEs.
post #9 of 10 (permalink) Old 12-14-2012
GT Member
5.0L Member
S197 Member
412horses's Avatar
Joined: Oct 2010
Location: Columbus
Posts: 2,458
I have a feeling they will make up for it when Ford shoehorns the big corporate-look frowning fish mouth grille onto the 2015s.


Scott | 2012 GT Premium Coupe Performance White 6R80 HID 64M Wheels Ford All-Weather Pony Mats & Trunk Liner GT500/GT Rear Mud Flap Set Ohio's Horses License Plate Raxiom Aero Tails

If you love your dog, get a microchip, they really work! My lost dog was back home in just under 24 hours thanks to the good citizens who called the county and the microchip that told animal control exactly where he lived.
412horses is offline  
S197 Member
theACE's Avatar
Joined: Jul 2010
Location: San Antonio
Posts: 107
IIRC, the filled in portions of the grille on stock Mustang's are to meet the standard Ford company policy on snow intake. I read that somewhere during a Ford discussion on the Boss program.

Race Red 2012 Mustang GT Premium 5.0, 6-Speed Manual Transmission, Brembo Brake Package, HID Headlights, Navigation, Comfort Package, Rear View Camera, Saddle Interior - Airaid Cold Air Intake/MGW Shifter/5.0 Floor Mats/ Bondra Clutch Extender/Flowmaster Outlaw Axle Backs/Boss Side Pipes/BMR Upper & Lower Control Arms/Steeda Shock Tower Brace/Moroso Oil Catch Can/2013 LED Fog Lamps
theACE is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Ford Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a VALID email address for yourself, otherwise you will not receive the necessary confirmation email needed to confirm, validate and activate your new AFM member account.

Failure to provide a VALID email address, will result in the cancellation of your new AFM member account registration.

Email Address:


Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

For the best viewing experience please update your browser to Google Chrome

Search Engine Friendly URLs by vBSEO 3.6.1