ATL: DGM bumper/diffuser swap? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

xwd · 06-27-2012, 10:12 AM

The car I ended up purchasing had the diffuser pre-installed. I actually like the diffuser, especially on the DGM car, but unfortunately the diffuser is a port installed option and not legal for the autocross class I'd like to participate in (CS). Most folks locally probably wouldn't care because it doesn't do a whole lot at autox speeds, but for a national event people would.

The diffuser looks easy enough to remove on its own, but there are holes drilled into the rear bumper cover which it attaches to and I don't think they would be completely hidden under the car once its removed.

I got to thinking if there was another person in the ATL area who has a DGM BRZ or the Asphalt Grey FR-S and wants a diffuser, would they be willing to swap rear bumper covers? I don't think the rear bumper cover is terribly hard to remove and put back on, mostly just plastic clips.

I don't want any money for the diffuser just a bumper cover without it.

kmbkk · 06-27-2012, 01:12 PM

Dang, why couldn't this be white! Oh well, good luck!

Dadhawk · 06-27-2012, 01:30 PM

Quote:

Originally Posted by dwx

The car I ended up purchasing had the diffuser pre-installed. I actually like the diffuser, especially on the DGM car, but unfortunately the diffuser is a port installed option and not legal for the autocross class I'd like to participate in (CS). Most folks locally probably wouldn't care because it doesn't do a whole lot at autox speeds, but for a national event people would.

The diffuser looks easy enough to remove on its own, but there are holes drilled into the rear bumper cover which it attaches to and I don't think they would be completely hidden under the car once its removed.

I got to thinking if there was another person in the ATL area who has a DGM BRZ or the Asphalt Grey FR-S and wants a diffuser, would they be willing to swap rear bumper covers? I don't think the rear bumper cover is terribly hard to remove and put back on, mostly just plastic clips.

I don't want any money for the diffuser just a bumper cover without it.

I'd do it but I don't think the Firestorm on mine is going to look very good on yours!

2pt5RS · 06-27-2012, 02:03 PM

I'll see if alex wants to do this...whenever he gets his DGM.

JPM Coachworks · 06-27-2012, 02:50 PM

I am more than happy to swap with you whenever our vehicle comes in. Give me a call at the shop at your convenience (678) 858-4785. I was actually just reading through the Technical PDF about this last night.

Cheers,
Alex

xwd · 06-27-2012, 07:03 PM

Alex, I will give you a call tomorrow if I get a chance or Friday.

JPM Coachworks · 06-28-2012, 01:23 PM

Quote:

Originally Posted by dwx

Alex, I will give you a call tomorrow if I get a chance or Friday.

I look forward to hearing from you

Alex
JPMCoachworks.com

kappaknight · 06-30-2012, 06:06 AM

Newb question, what does the diffuser do?

Random_Art · 06-30-2012, 08:24 AM

Quote:

Originally Posted by kappaknight

Newb question, what does the diffuser do?

It smooths out the airflow exiting under the car at the rear. This reduces drag and, depending on the design, may also help increase downforce at the back.
At average road speeds, you're not likely to notice the difference between a car with the diffuser and one without. But, if you were going flat out on the track it could make a difference.

Cheddar · 06-30-2012, 09:56 AM

I'm my whiteout has holes in the bumper already for the diffuser....

Can you post pics of what holes your talking about?

xwd · 06-30-2012, 01:10 PM

I'm just going off of the Subaru instructions and what it looks like on my car. The instructions for a new install, say if you ordered from a dealer after getting the car, involves taking off the bumper cover and drilling holes in it. Do you have any pictures of the holes in yours?

JPM sorry I didn't get a chance to give you a call yet, I will when I get a chance.

Cheddar · 06-30-2012, 01:29 PM

Ill post some the pic soon.

06-27-2012, 10:12 AM	#1
xwd Senior Member Join Date: Feb 2012 Drives: 2013 DGM Subaru BRZ (Subie #9) Location: ATL, US Posts: 2,667 Thanks: 123 Thanked 860 Times in 552 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	ATL: DGM bumper/diffuser swap? The car I ended up purchasing had the diffuser pre-installed. I actually like the diffuser, especially on the DGM car, but unfortunately the diffuser is a port installed option and not legal for the autocross class I'd like to participate in (CS). Most folks locally probably wouldn't care because it doesn't do a whole lot at autox speeds, but for a national event people would. The diffuser looks easy enough to remove on its own, but there are holes drilled into the rear bumper cover which it attaches to and I don't think they would be completely hidden under the car once its removed. I got to thinking if there was another person in the ATL area who has a DGM BRZ or the Asphalt Grey FR-S and wants a diffuser, would they be willing to swap rear bumper covers? I don't think the rear bumper cover is terribly hard to remove and put back on, mostly just plastic clips. I don't want any money for the diffuser just a bumper cover without it.

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06-27-2012, 01:12 PM	#2
kmbkk First 86 Driver Baby! Join Date: Jan 2012 Drives: FR-S, Flex Location: Williamsburg, VA Posts: 1,752 Thanks: 505 Thanked 513 Times in 349 Posts Mentioned: 32 Post(s) Tagged: 3 Thread(s)	Dang, why couldn't this be white! Oh well, good luck!

06-27-2012, 02:03 PM	#4
2pt5RS Berz Join Date: May 2012 Drives: 2013 BRZ Location: -=ATL=- Posts: 707 Thanks: 281 Thanked 294 Times in 158 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	I'll see if alex wants to do this...whenever he gets his DGM.

06-27-2012, 02:50 PM	#5
JPM Coachworks Join Date: May 2012 Drives: Honda S2000, Subaru STI Location: Atlanta, GA Posts: 225 Thanks: 122 Thanked 288 Times in 105 Posts Mentioned: 41 Post(s) Tagged: 0 Thread(s)	I am more than happy to swap with you whenever our vehicle comes in. Give me a call at the shop at your convenience (678) 858-4785. I was actually just reading through the Technical PDF about this last night. Cheers, Alex

06-27-2012, 07:03 PM	#6
xwd Senior Member Join Date: Feb 2012 Drives: 2013 DGM Subaru BRZ (Subie #9) Location: ATL, US Posts: 2,667 Thanks: 123 Thanked 860 Times in 552 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	Alex, I will give you a call tomorrow if I get a chance or Friday.

06-30-2012, 06:06 AM	#8
kappaknight Member Join Date: Jun 2012 Drives: Honda Fit Location: Atlanta, GA Posts: 82 Thanks: 98 Thanked 37 Times in 17 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Newb question, what does the diffuser do?

06-30-2012, 09:56 AM	#10
Cheddar Saving them pennies... Join Date: Apr 2012 Drives: 2013 FR-S Location: Miami, FL Posts: 641 Thanks: 44 Thanked 178 Times in 111 Posts Mentioned: 17 Post(s) Tagged: 3 Thread(s)	I'm my whiteout has holes in the bumper already for the diffuser.... Can you post pics of what holes your talking about?

06-30-2012, 01:10 PM	#11
xwd Senior Member Join Date: Feb 2012 Drives: 2013 DGM Subaru BRZ (Subie #9) Location: ATL, US Posts: 2,667 Thanks: 123 Thanked 860 Times in 552 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	I'm just going off of the Subaru instructions and what it looks like on my car. The instructions for a new install, say if you ordered from a dealer after getting the car, involves taking off the bumper cover and drilling holes in it. Do you have any pictures of the holes in yours? JPM sorry I didn't get a chance to give you a call yet, I will when I get a chance.

06-30-2012, 01:29 PM	#12
Cheddar Saving them pennies... Join Date: Apr 2012 Drives: 2013 FR-S Location: Miami, FL Posts: 641 Thanks: 44 Thanked 178 Times in 111 Posts Mentioned: 17 Post(s) Tagged: 3 Thread(s)	Ill post some the pic soon.

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