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View Full Version : Rear Grille Options, Factory Bumper



Mechie3
12-31-2016, 10:53 PM
Zero Decibel Motorsports Rear Grille

This is an interest check and group buy for two rear grilles that fit the factory FFR bumper. For a different set of rear grilles that accept different lights, check this thread here: http://thefactoryfiveforum.com/showthread.php?20151-Group-Buy-Interest-Check-Rear-Grille-and-LED-Lights-Zero-Decibel All grilles have matching hex patterns.

Paper model of the trapezoidal lower grille.
http://i.imgur.com/jowpavM.jpg

CAD render of Rectangular Grille (grille is 27" wide by 8.5" tall)
http://i.imgur.com/AdxFztu.png

Cutout on Metros rear grille (he plans to add a cutout on the mesh for his exhaust)
http://i.imgur.com/02crbpJ.jpg

What:
Aluminum rear hexagon vent panels. The grill can come bare (bond to inside of body, bolt on, or use rivets) or with flush mount PEM studs (threaded studs permanently pressed in that are flush with the outside surface). The trapezoidal panel fits into the lower recessed area on the stock FFR bumper. This will become a standard product (though not at the group buy price).

The rectangular one is a version that Metros is planning to use centered on the upper portion of the bumper. This likely will not become a standard product and will be a one time buy for Metros with the potential for others to get on board and get better pricing for metros too.

Why:
Better airflow than the FFR perforated mesh. More modern look. The trim laid on top of the perforated mesh looks less refined IMO. Exotic cars like Ferrari from the last generation (think F355, F360) used round hole mesh on their challenge trim level. Starting with the F430 a switch was made to a wire diamond mesh. This trend continued on with the F458. With the La Ferrari, Ferrari began to use honey comb mesh. Lamborghini was doing the same. Lamborghini dropped the wire diamond mesh from their entry level gallardo and switched to honeycomb on their new Huracan. The aventador also featured a honeycomb pattern. Mclaren used a hex extensively on the rear of their new P1 as well. Pagani dropped the wire mesh on the Zonda and went to a geometric pattern on the rear of the Huayra. Plain round hold mesh just seems so 1999

Cost:
This will be a partial group buy and partial interest check. The grills will be setup group buy style. The more people in, the better the price (though pricing doesn't get dramatically better like some parts I've had). 50% deposit due before parts are ordered.


Add in pressed in flush mount PEM studs: $15 (at any group buy level, any grille)

Trapezoidal, Bare Grille:
5 people: $110
6-10: $95
10+: $90

1: STimedic (pems)
2: RM1Sepex (pems)
3: Wleehendrick (pems)
4: Metros
5: bbjones (pems)
6: DSR-3 (pems)
7: Frankc5r (no pems)
8: The Furnace (with pems)
9: Mistasherm (with pems)
10: WillD (with pems)
11: DMC7492

Rectangular "Metros" Grille:
3 People: $120
5 : $110
6-10: $95

1: Metros


http://i.imgur.com/XVv0G9Y.jpg

Example of my bumper with several different rear grilles. This is the Harley818 style bumper so the grille panels aren't quite the same, but they show what it would look like more or less
http://i.imgur.com/rMg733V.jpg.





If you're interested please indicate as such and note whether you want the trapezoidal, rectangular, or both ($10 discount if you get both). Also please mention if you plan to rivet these on or if you want the pem studs pressed in and nylock nuts supplied.

Thanks!

STimedic
12-31-2016, 11:54 PM
What tails are those? Also, interested in the lower trapezoidal grille.

Mechie3
01-01-2017, 08:13 AM
What tails are those? Also, interested in the lower trapezoidal grille.

Click the link in the first post. They're some lights I imported. More pics of them in the other link too.

Did you want pem studs with the grille?

STimedic
01-01-2017, 01:34 PM
Yes.

RM1SepEx
01-02-2017, 09:15 AM
Hi Craig, I want the stock trapezoidal with PEMs. Any clue when we can see a similar grill for the original stock front? I want that and the two scoop grills by Spring!

wleehendrick
01-03-2017, 01:20 PM
Hi Craig, I want the stock trapezoidal with PEMs.

Craig, ditto for me! I'm in for the FFR standard lower mesh (with studs).

Thanks,

Lee

metros
01-08-2017, 01:07 PM
I'm in for the 'metros' upper grill and FFR stock lower grill. I had anticipated sending payment but it looks like you're still gathering interest up first. Update this thread when you're ready and I'll send payment.

bbjones121
01-08-2017, 11:38 PM
Put me down for the trapezoidal.

Mechie3
01-09-2017, 09:44 AM
Let me know if you want pems or not.

One more person and the price drops.

DSR-3
01-09-2017, 11:36 AM
Thanks for designing & offering this! Great option.
I'm in for the Trapezoidal, Bare Grille, with PEM's

frankc5r
01-09-2017, 06:31 PM
Let me know if you want pems or not.

One more person and the price drops.

Have you counted my order for lower trapezoidal w/o pems from my PM to you.

Mechie3
01-10-2017, 09:22 AM
Frank, just added you. Thanks.

Mechie3
01-11-2017, 09:35 AM
Up to eight now. Just in case anyone missed it, adding in pems is $15 in addition to the group buy price. You can always press in your own if you'd like. It'll cost you a handful of dollars for the pems and nuts and you'll need access to a large press (I use a 20 ton hydraulic, the little 1 ton hand one didn't work) and an arbor. The arbor is just a piece of material with a certain size hole in it (can't remember off hand what it is). I can look up part numbers for the pems and nuts.

mistasherm
01-11-2017, 10:40 AM
Craig
Please add me to the order for the FFR stock lower mesh with PEMs.
Thank you.
Ty

chronies5
01-13-2017, 04:38 PM
Would you guys ever consider using a wire mesh on the inside of these grilles? Would the extra layer of finer wire mesh be worth it - say something like the 100 x 100 stainless woven mesh seen here: http://www.bwire.com

Obviously this may cut down a bit on air flow, but in my opinion, the grille itself without anything else on the inside of it runs a huge risk of small rocks and pebbles getting through and doing some major damage to the internals.

Mechie3
01-14-2017, 10:42 AM
Last bump before placing the order.

bbjones121
01-14-2017, 10:54 AM
Is this wide enough to allow me to cut out the entire opening and bond this to the back side of bumper?

Mechie3
02-26-2017, 09:57 PM
No. It fits within the cutout. If you removed the entire depressed area this has nothing to attach to.

I'm making a few updates to these parts. Someone made a request to make the outer frame a little bit thinner vs the 1/2" it currently is so I'm updating all of the models. The change is to differentiate it more from the FFR trim rings and make it look a little more OEM.

bbjones121
02-26-2017, 11:34 PM
Hey Craig, Are you planning on doing any other openings? I may have to opt out of this one if not as I am trying to keep the patterns all similar. I need something for the new front end.

Mechie3
02-27-2017, 09:11 AM
I have the lower trapezoidal one. I also had this feeler for upper options: http://thefactoryfiveforum.com/showthread.php?20151-Group-Buy-Interest-Check-Rear-Grille-and-LED-Lights-Zero-Decibel

What part of the front end are you referring to? The side teardrop kind of shaped sections in the black part?

Mechie3
02-27-2017, 11:10 PM
Finished the updates and sent them out to get quoted. The new one is on top, the original is on the bottom. The .5" frame went to .3125" frame in order to lessen the visual impact.

http://i.imgur.com/JXdTELf.png

Mechie3
02-28-2017, 10:21 AM
Pricing didn't change (as I didn't expect it to). I'll be placing the order shortly. I'll contact the individuals in the group buy via PM.

bbjones121
02-28-2017, 11:36 AM
I would like the PEMs please.

DMC7492
03-01-2017, 02:45 PM
:cool: now that's what I'm talkin bout!! Excellent idea!!

RM1SepEx
03-01-2017, 04:36 PM
need... front... grill... now... too... ;)

Mechie3
03-08-2017, 05:10 PM
Would you guys ever consider using a wire mesh on the inside of these grilles? Would the extra layer of finer wire mesh be worth it - say something like the 100 x 100 stainless woven mesh seen here: http://www.bwire.com

Obviously this may cut down a bit on air flow, but in my opinion, the grille itself without anything else on the inside of it runs a huge risk of small rocks and pebbles getting through and doing some major damage to the internals.

Just saw this. No, I won't be adding any wire. The end user can easily add that themselves if they'd like. There isn't much benefit to me ordering the material and cutting it and charging you for my time and shipping. I usually encourage people to explore DIY options if there's no real benefit I can provide them. CNC'd and laser cut parts are something not every can do so I feel I can offer something there. There shouldn't be any damage done to the internals if you're running an air filter and the drivetrain is typically exposed on the underside of a car so it won't see any damage either.

Mechie3
03-16-2017, 10:27 AM
I have the trapezoidal parts in stock now. Need to sand and press in pems and they'll be ready to ship.

RM1SepEx
03-16-2017, 01:40 PM
Awesome! Now another shameless plug for a matching front grill for the original nose... ;)

bbjones121
04-13-2017, 10:46 AM
Any updates?

Mechie3
04-14-2017, 09:03 AM
I have parts ready to ship. Sorry if I haven't contacted everyone. Life has been beyond busy.

bbjones121
05-04-2017, 11:21 AM
When should we pay remaining half?

RM1SepEx
05-04-2017, 11:38 AM
I'd love to show it off at the open house Craig... I do need time to powder coat it as it's too big for my oven and will need to be subbed out :cool:

Mechie3
05-09-2017, 12:17 PM
I should have more pems tomorrow to press in. Was out of town for a bit.

bbjones121
05-09-2017, 01:22 PM
No problem, I understand. Let me know. Thanks.