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Fitting the OEM Carbon rear diffuser ('07 coupe)
- Breaker
- Lifer
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Re: Fitting the OEM Carbon rear diffuser ('07 coupe)
3.0si Z4 Coupe then an sDrive 35i Z4. Great cars, now gone. Range Rover Evoque owner now!
- coupe-sport
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Re: Fitting the OEM Carbon rear diffuser ('07 coupe)
Doh ! - very nice.
Sapphire Black 3.0 coupe | Monaco Blue 2.0 roadster
- Breaker
- Lifer
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Re: Fitting the OEM Carbon rear diffuser ('07 coupe)
Update. Just sealed up the edges of the diffuser to make it look smoother. Although it was a good fit, there was a small gap on the corners, and being fussy, that just wouldn't do!
3.0si Z4 Coupe then an sDrive 35i Z4. Great cars, now gone. Range Rover Evoque owner now!
- cj10jeeper
- Lifer
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Re: Fitting the OEM Carbon rear diffuser ('07 coupe)
Looks really good
Strange - that's the one job I still have to do on mine and I keepo thinking about what I'm going to do with it. Even worse in that mine does not have the crease line to follow and a different lower 'lip' profile, so even morereason to fill it.
So what did you seal it with? My first thought is to use an automotive black silicone.
Strange - that's the one job I still have to do on mine and I keepo thinking about what I'm going to do with it. Even worse in that mine does not have the crease line to follow and a different lower 'lip' profile, so even morereason to fill it.
So what did you seal it with? My first thought is to use an automotive black silicone.
Jaguar F-Type 3.0 Supercharged V6 S, Stratus Grey, LSD, Active Exhaust, CF wheels, Performance brakes, Sports seats and mods ongoing
Gone but not forgotten Z4 3.0i SE Roadster ///M front, Red ///M leather seats, Aero sills
Gone but not forgotten Z4 3.0i SE Roadster ///M front, Red ///M leather seats, Aero sills
- ksher
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Re: Fitting the OEM Carbon rear diffuser ('07 coupe)
How do you keep the exhaust pipes that shiny? I use Autosol Metal Polish, but still can't get the black deposit off.Breaker wrote:
Current BMW: 640d Gran Coupe M Sport (F06), 118d SE (F20).
Previous BMW: Z4 sDrive23i M Sport (E89), 318i Sport (F30), 120d SE (F20), Z4 2.5i Sport Roadster (E85), 523i Sport (E60), 323Ci (E46), 523i SE (E39), 318i (E36).
Previous BMW: Z4 sDrive23i M Sport (E89), 318i Sport (F30), 120d SE (F20), Z4 2.5i Sport Roadster (E85), 523i Sport (E60), 323Ci (E46), 523i SE (E39), 318i (E36).
- Breaker
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Re: Fitting the OEM Carbon rear diffuser ('07 coupe)
They don't look like that all the time! Just did it before the photo! I used T-Cut!.
3.0si Z4 Coupe then an sDrive 35i Z4. Great cars, now gone. Range Rover Evoque owner now!
- Breaker
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Re: Fitting the OEM Carbon rear diffuser ('07 coupe)
I think automotive sealant would be fine.cj10jeeper wrote:Looks really good
Strange - that's the one job I still have to do on mine and I keepo thinking about what I'm going to do with it. Even worse in that mine does not have the crease line to follow and a different lower 'lip' profile, so even morereason to fill it.
So what did you seal it with? My first thought is to use an automotive black silicone.
I used black SikaFlex I got from work. It's what the company I work for uses to bond panels on trucks together with (I used to be a vehicle body builder!).
Info here: http://www.sikaindustry.com/tds-ipd-sf221-ind-us.pdf
Put it this way, it will be a bugger to get off now! I could have used it to fit the diffuser without bolting!!
Mind you, I only sealed the ends though.
3.0si Z4 Coupe then an sDrive 35i Z4. Great cars, now gone. Range Rover Evoque owner now!
- Caddyshk
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Re: Fitting the OEM Carbon rear diffuser ('07 coupe)
Does the car have more downforce now?
2006 Z4MC IB - LL93158
SS Race M, RE X Pipe, FS Headers/DFK Sec 1, OE STB, DZ CDV, AS SS, GC CoilOvers, SP FCAB, RE RTAB, VT Engine Mts, Stoptech lines, Hawk DTC, RE Clutch Stop, RE Tran Mounts, LeatherZ MSB, Tekarbon Spoiler, CF Grills, Advan RS
SS Race M, RE X Pipe, FS Headers/DFK Sec 1, OE STB, DZ CDV, AS SS, GC CoilOvers, SP FCAB, RE RTAB, VT Engine Mts, Stoptech lines, Hawk DTC, RE Clutch Stop, RE Tran Mounts, LeatherZ MSB, Tekarbon Spoiler, CF Grills, Advan RS
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- Lifer
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Re: Fitting the OEM Carbon rear diffuser ('07 coupe)
Yes,
Can you feel it...
Can you feel it...
Drives 2008 Z4MC (His) & 2003 Z4 Roadster (Her's)
- ksher
- Lifer
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Re: Fitting the OEM Carbon rear diffuser ('07 coupe)
Not the double-decker rear diffuser used by Brawn GP, Williams and Toyota. But Breaker's car can still go faster than Coupe without diffuser.Caddyshk wrote:Does the car have more downforce now?
Current BMW: 640d Gran Coupe M Sport (F06), 118d SE (F20).
Previous BMW: Z4 sDrive23i M Sport (E89), 318i Sport (F30), 120d SE (F20), Z4 2.5i Sport Roadster (E85), 523i Sport (E60), 323Ci (E46), 523i SE (E39), 318i (E36).
Previous BMW: Z4 sDrive23i M Sport (E89), 318i Sport (F30), 120d SE (F20), Z4 2.5i Sport Roadster (E85), 523i Sport (E60), 323Ci (E46), 523i SE (E39), 318i (E36).
- Breaker
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Re: Fitting the OEM Carbon rear diffuser ('07 coupe)
If there is, it probably isn't noticeable.Caddyshk wrote:Does the car have more downforce now?
Looks good though!
3.0si Z4 Coupe then an sDrive 35i Z4. Great cars, now gone. Range Rover Evoque owner now!
- VENDAR
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Re: Fitting the OEM Carbon rear diffuser ('07 coupe)
Your project makes me wanna go to the dark side of the force
- ba3bas
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Re: Fitting the OEM Carbon rear diffuser ('07 coupe)
whats the part number for the diffuser?
- cj10jeeper
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Re: Fitting the OEM Carbon rear diffuser ('07 coupe)
Discontinued by BMW many years ago. No longer any old stock available.ba3bas wrote:whats the part number for the diffuser?
Jaguar F-Type 3.0 Supercharged V6 S, Stratus Grey, LSD, Active Exhaust, CF wheels, Performance brakes, Sports seats and mods ongoing
Gone but not forgotten Z4 3.0i SE Roadster ///M front, Red ///M leather seats, Aero sills
Gone but not forgotten Z4 3.0i SE Roadster ///M front, Red ///M leather seats, Aero sills
- Bad_Pritt
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Fitting the OEM Carbon rear diffuser ('07 coupe)
Looks like this diffuser is available again, made by another company, but seems to be exactly as the original. Very tempted by this mod...! Already bought the carbon trunkspoiler, so would be a great match...
https://www.benl.ebay.be/itm/BMW-Z4-Car ... SwZ5Ra-Bkb
https://www.benl.ebay.be/itm/BMW-Z4-Car ... SwZ5Ra-Bkb