Interest in B7 RS4 Rear Diffuser?

4.2 V8 32v Naturally Aspirated - 414 bhp
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FaisalJ
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Interest in B7 RS4 Rear Diffuser?

Post by FaisalJ » Thu Jun 23, 2016 2:31 pm

Hi Guys

So I've been trying (unsuccessfully) to hunt down someone that can make a custom rear diffuser for the B7, and turns out we may have a forum member that can help.

TechNick is looking into the possibility of manufacturing a rear diffuser that would fit over the current one as an outer skin (as the bumper and diffuser are one piece).

If you're interested, please add your name to the poll on the link below so he can assess level of interest. :thumbs:

http://www.driving-passion.com/products

Pics of custom diffusers:
Rear Diffuser.jpg
209454_407706122620969_661054506_o.jpg
RS4_zpse06871c5.jpg
Last edited by FaisalJ on Thu Jan 26, 2017 12:10 pm, edited 1 time in total.
Image
2007 RS4 B7 Avant
Phantom Black | Black Optics | MRC Stage 2 | JC Weldfab Exhaust | KW V3 coilovers | H&R ARBs | 20" Ispiri ISR-8 | Titanium wing mirrors | Driving Passion Diffuser | CF Air Intake | Manifold deflap | Alcantara/leather retrim | TT RS Steering Wheel | Pioneer Apple Carplay HU, JL amp and sub, Focal components | Clear Headlight Lenses, Black Internals, 6000K Bulbs | Trups LEDs | LED Tail lights |

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Re: Interest in B7 RS4 Rear Diffuser?

Post by kevconn » Thu Jun 23, 2016 2:38 pm

Added :bigblink:
Sprint Blue B7 RS4, Milltek, Resonator Delete, Bilstein Suspension, ITG Panel Filter, Forge Oil Cooler,BBS Alloys, Black Optics, Rear Tints, TRW Track Control Arms, Carbon Clean.

kernowrs4
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Re: Interest in B7 RS4 Rear Diffuser?

Post by kernowrs4 » Thu Jun 23, 2016 2:45 pm

if there was a better picture from behind I might be able to make my decision, does look pretty cool though

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Re: Interest in B7 RS4 Rear Diffuser?

Post by Punz » Thu Jun 23, 2016 3:28 pm

I would be interested in this too
Image

Rw@@dy
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Re: Interest in B7 RS4 Rear Diffuser?

Post by Rw@@dy » Thu Jun 23, 2016 5:17 pm

Name added to poll

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alefustec
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Re: Interest in B7 RS4 Rear Diffuser?

Post by alefustec » Thu Jun 23, 2016 9:16 pm

Added :jump_clap:
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19x9.5 Bola alloys, LED interior/door lights, exhaust flap delete, pre-cat delete, resonator delete, chrome to black optics, B&C pillars, rear boot strip, front grills & lower intakes gloss black, revolution induction kit, LED Drl's, de-tangoed, RNSE delete - Pioneer Apple CarPlay, reverse camera. 380mm upgraded JHM front rotors, Eibach control arms, Bilstein P14's, MCarbon diffuser & Cupra R splitter.

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pule333
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Interest in B7 RS4 Rear Diffuser?

Post by pule333 » Thu Jun 23, 2016 9:21 pm

TOTALY in on it!

Had one of this on my A4
Image
Image
ilya, photographer http://www.ikrylov.com

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TechNick
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Re: Interest in B7 RS4 Rear Diffuser?

Post by TechNick » Fri Jun 24, 2016 8:51 pm

Thanks Faisal!
I should probably point out that, if I were to develop one, it may not look entirely like those in the images above!

As a reference, the B8 unit is slightly less aggressive:

Image

Image

I'd be interested to understand preferences either way, though (especially as it will likely need to protrude further than the B8 unit, as it would be an overlay to the existing part, rather than a replacement).

.

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Re: Interest in B7 RS4 Rear Diffuser?

Post by Rw@@dy » Sat Jun 25, 2016 7:56 am

Something like the b8 one for the b7 would be good, for me the other one above doesn't look right as it sticks out too much

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FaisalJ
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Re: Interest in B7 RS4 Rear Diffuser?

Post by FaisalJ » Sat Jun 25, 2016 12:25 pm

Nick - I guess you'd be able to knock up drawings of the splitter before production, if it were to go ahead? Would a couple of different options be possible, and we could choose a winner?

I wouldn't actually be opposed to a design that would involve a bodyshop chopping out the central/lower area of the bumper if it means a nicer looking diffuser. I was going down that road anyway, and I guess it'd have to be permanently bonded to the bumper so doesn't really matter what's happened underneath.

E.g. cuts where i've indicated with the red lines on this pic, would give you a lot of extra depth to play with:
Rear Bumper2 cut.jpg
Not sure what others would think of this though?
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2007 RS4 B7 Avant
Phantom Black | Black Optics | MRC Stage 2 | JC Weldfab Exhaust | KW V3 coilovers | H&R ARBs | 20" Ispiri ISR-8 | Titanium wing mirrors | Driving Passion Diffuser | CF Air Intake | Manifold deflap | Alcantara/leather retrim | TT RS Steering Wheel | Pioneer Apple Carplay HU, JL amp and sub, Focal components | Clear Headlight Lenses, Black Internals, 6000K Bulbs | Trups LEDs | LED Tail lights |

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MikeFish
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Re: Interest in B7 RS4 Rear Diffuser?

Post by MikeFish » Sat Jun 25, 2016 7:32 pm

I'm surprised no-one has mentioned finsih yet? I'm assuming an unfinshed GRP type material so can be painted any colour or carbon skinned if wanted. A proper carbon diffuser would be too costley I think. If I wasn't selling mine I could be interested depending on design but no point now, it's in the body Shop being tidied up then going on sale.

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TechNick
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Re: Interest in B7 RS4 Rear Diffuser?

Post by TechNick » Sun Jun 26, 2016 12:57 am

FaisalJ wrote:Nick - I guess you'd be able to knock up drawings of the splitter before production, if it were to go ahead? Would a couple of different options be possible, and we could choose a winner?
My starting point would be to get some 3D scan data of an existing bumper/rear valance and then try out a few ideas on the computer - not too dissimilar to the approach taken with the B8 unit. As such, I'd expect to be able to produce images similar to those below, which could be reviewed (and voted on) prior to production:

Image

Image
FaisalJ wrote:I wouldn't actually be opposed to a design that would involve a bodyshop chopping out the central/lower area of the bumper if it means a nicer looking diffuser. I was going down that road anyway, and I guess it'd have to be permanently bonded to the bumper so doesn't really matter what's happened underneath.
I'd hope to be able to make fitting as straightforward as possible (without the need to cut sections out), but won't really get a feel for what's possible until I obtain and manipulate the scan data.

Mike - I'd want to play around with the design a bit before deciding on the material to use, as the fixing points and preferred material thickness to fit in with the design would play into it all, as would other factors such as required flexibility (e.g. during fitting).
Ref the latter... as it would likely be an overlay, then it wouldn't necessarily need to be very flexible, although I'd probably shy away from GRP as it would be bonded to the existing PU/PP unit (so a smooth inner surface may help with that, which GRP wouldn't necessarily provide)...

.

thesupercharger
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Re: Interest in B7 RS4 Rear Diffuser?

Post by thesupercharger » Sun Jun 26, 2016 10:26 am

I want 1 aswell definitely was trying to source the same thing get these made they will sell!!

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TAB1S
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Re: Interest in B7 RS4 Rear Diffuser?

Post by TAB1S » Sun Jun 26, 2016 11:16 am

Also extremely interested in this :biggrin3:
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Launch control & flat shift :mrgreen:

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Re: Interest in B7 RS4 Rear Diffuser?

Post by Huwbert » Mon Jun 27, 2016 6:01 pm

I'm interested in this, depending on price and what the finished product looks like. The first pics Faisal posted look good, the others, not so.....
Audi S1 Sportback, 2014, Daytona Grey, Black optics, Privacy Glass, Bum warmers.
Audi RS4 Avant, 2006, B7, Phantom Black, Carbon pack, MRC Stage 2, Milltek resonated. 166k miles and counting....

Previous cars Audi A1 S-Line, Audi A4 quattro sport, Subaru Legacy B4 RSK, Nissan 200sx S14, Nissan 200sx S13, Ford Escort van, Ford Escort Rally car mk2, Mini-proper one....

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