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Thread: Rear Grille Options, Factory Bumper

  1. #1

    Rear Grille Options, Factory Bumper

    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/showt...s-Zero-Decibel All grilles have matching hex patterns.

    Paper model of the trapezoidal lower grille.


    CAD render of Rectangular Grille (grille is 27" wide by 8.5" tall)


    Cutout on Metros rear grille (he plans to add a cutout on the mesh for his exhaust)


    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).


    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
    6: DSR-3 (pems)
    7: Frankc5r (no pems)
    8: The Furnace (with pems)
    9: Mistasherm (with pems)

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

    1: Metros




    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
    .





    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!
    Last edited by Mechie3; 01-11-2017 at 12:20 PM.
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  2. #2
    What tails are those? Also, interested in the lower trapezoidal grille.
    Last edited by STimedic; 12-31-2016 at 11:58 PM.

  3. #3
    Quote Originally Posted by STimedic View Post
    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?
    Last edited by Mechie3; 01-01-2017 at 10:26 AM.
    Zero Decibel Motorsports
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  4. #4

  5. #5
    Senior Member RM1SepEx's Avatar
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    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!
    Dan

    818S #17 Picked up 8/1/13 First start 11/1/13 Go Kart 3/28/14

  6. #6
    Senior Member wleehendrick's Avatar
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    Quote Originally Posted by RM1SepEx View Post
    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

  7. #7
    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.

  8. #8
    Senior Member
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    Put me down for the trapezoidal.

  9. #9
    Let me know if you want pems or not.

    One more person and the price drops.
    Zero Decibel Motorsports
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  10. #10
    Senior Member DSR-3's Avatar
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    Thanks for designing & offering this! Great option.
    I'm in for the Trapezoidal, Bare Grille, with PEM's

  11. #11
    Quote Originally Posted by Mechie3 View Post
    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.

  12. #12
    Frank, just added you. Thanks.
    Zero Decibel Motorsports
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  13. #13
    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.
    Zero Decibel Motorsports
    Check out my new website!
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  14. #14
    Craig
    Please add me to the order for the FFR stock lower mesh with PEMs.
    Thank you.
    Ty

  15. #15
    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.

  16. #16
    Last bump before placing the order.
    Zero Decibel Motorsports
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  17. #17
    Senior Member
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    Is this wide enough to allow me to cut out the entire opening and bond this to the back side of bumper?

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