G80/82 Roof Spoiler. Thoughts

Troy1star · 04-24-2023, 04:03 PM

I was a little skeptical, but it doesn’t look bad at all. What y’all think

astroricardo · 04-24-2023, 04:04 PM

What's it supposed to do?

Troy1star · 04-24-2023, 04:08 PM

Just looks I think.

beamlord · 04-24-2023, 04:14 PM

Jesus, no, just - no.

rak299 · 04-24-2023, 04:18 PM

Quote:

Originally Posted by Troy1star

I was a little skeptical, but it doesn’t look bad at all. What y’all think

It needs to be about 10 times as large and have flashing "M" logos.

diablo2112 · 04-24-2023, 04:21 PM

If you have to ask...

ottm3 · 04-24-2023, 04:43 PM

not look good

Forzanerazzurri · 04-24-2023, 08:09 PM

That would look good with some rear window louvers

voyagergab · 04-24-2023, 09:12 PM

IMHO looks terrible.

mirob · 04-25-2023, 06:52 AM

Quote:

Originally Posted by Troy1star

I was a little skeptical, but it doesn’t look bad at all. What y’all think

Should have remained skeptical.

JeetG80x · 04-25-2023, 06:59 AM

Complete the look with a windshield spoiler, also there's a spoiler for your trunk spoiler too...spoil your car bud =p

M4ord · 04-25-2023, 07:01 AM

You likely will only get grief from other G8X owners. If you asked this question in a neutral forum the answer maybe different.

Personally I don’t think it looks bad. I would not do it, but also would not laugh at it either.

JY01 · 04-25-2023, 07:21 AM

Ngl it looks alright, I wouldn’t run one though. I’ve seen tackier things put on G80s e.g.

Jim B · 04-25-2023, 10:33 AM

Quote:

Originally Posted by astroricardo

What's it supposed to do?

Lighten your wallet.

LuckyBrand · 04-25-2023, 12:13 PM

Nope!

1209582 · 04-25-2023, 12:58 PM

double the downforce?

jmg · 04-25-2023, 09:40 PM

There is a reason the rear window is so raked on the G80. Letting the air flow stick to the rear window decreases drag.

The roof spoiler totally defeats any positive effects your boot spoiler is giving you. I can see them on hatchbacks, where the roof spoiler functionally acts as a rear spoiler. However, on a G80 or G82, a roof spoiler increases drag and reduces lift less than with just a trunk spoiler. Worse yet, it increases drag almost as much as a bigger trunk spoiler, but without any lift reduction benefits.

Here's a video about how the roof spoiler affects drag and lift . Go to 8:16 in the video

Attached is the graph for easy reference.

If I were looking to increase aerodynamic properties, it's a waste of money, but I think it looks kind of cool and if you enjoy how it looks then

MMM.PWR · 04-25-2023, 10:50 PM

rice

wazzza · 04-25-2023, 11:44 PM

Nope.

kjx · 04-27-2023, 12:45 AM

Quote:

Originally Posted by mirob

Should have remained skeptical.

Savage.

mirob · 04-27-2023, 05:48 AM

Quote:

Originally Posted by kjx

Savage.

He asked for opinions. LOL. I may have come in a bit too harsh but I feel that strongly about this one.

Zamorskii · 04-27-2023, 11:47 AM

It reminds me of AC Schnitzer spoilers from e46 era. Looks fine to me, but I am personally interested only in functional parts.

04-24-2023, 04:03 PM	#1
Troy1star Private First Class 151 Rep 102 Posts Drives: 2016 M3 Join Date: May 2013 Location: Brooklyn, NY iTrader: (0)	I was a little skeptical, but it doesn’t look bad at all. What y’all think Attached Images
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04-24-2023, 04:04 PM	#2
astroricardo Captain 885 Rep 682 Posts Drives: 2022 M3Cx TR/Tartufo Join Date: Oct 2021 Location: Grove Street iTrader: (0)	What's it supposed to do?
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04-24-2023, 04:08 PM	#3
Troy1star Private First Class 151 Rep 102 Posts Drives: 2016 M3 Join Date: May 2013 Location: Brooklyn, NY iTrader: (0)	Just looks I think.
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04-24-2023, 04:14 PM	#4
beamlord First Lieutenant 431 Rep 360 Posts Drives: 2023 m3c Join Date: Apr 2023 Location: europe iTrader: (0)	Jesus, no, just - no.
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04-24-2023, 04:21 PM	#6
diablo2112 2024 M440i GC (G26) 279 Rep 511 Posts Drives: 2024 M440i Gran Coupe Join Date: Dec 2006 Location: USA iTrader: (3)	If you have to ask...
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04-24-2023, 04:43 PM	#7
ottm3 Enlisted Member 54 Rep 33 Posts Drives: 2021 BMW G82 M4 Join Date: Oct 2015 Location: Encino iTrader: (0)	not look good
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04-24-2023, 08:09 PM	#8
Forzanerazzurri Banned 6920 Rep 3,277 Posts Drives: E46 M3 Coupe/G80 M3CX Join Date: Jul 2021 Location: Alberta iTrader: (0) Garage List 2003 BMW M3 Coupe [0.50] 2022 BMW M3 Competi ... [5.12]	That would look good with some rear window louvers
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04-24-2023, 09:12 PM	#9
voyagergab Major 634 Rep 1,083 Posts Drives: G82 M4 6MT, G01/F97 X3M Join Date: May 2014 Location: Calgary, AB iTrader: (0)	IMHO looks terrible.
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04-25-2023, 06:59 AM	#11
JeetG80x Private First Class 324 Rep 114 Posts Drives: 2023 M3CX -Jahre Join Date: Aug 2022 Location: Montreal, QC iTrader: (0)	Complete the look with a windshield spoiler, also there's a spoiler for your trunk spoiler too...spoil your car bud =p
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04-25-2023, 07:01 AM	#12
M4ord First Lieutenant 793 Rep 367 Posts Drives: 2022 M4 Convertible Join Date: Jun 2022 Location: DC Metro iTrader: (0) Garage List 2022 M4 Convertible [10.00]	You likely will only get grief from other G8X owners. If you asked this question in a neutral forum the answer maybe different. Personally I don’t think it looks bad. I would not do it, but also would not laugh at it either.
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04-25-2023, 07:21 AM	#13
JY01 JY01 693 Rep 302 Posts Drives: 2023 BMW M4 Competition xDrive Join Date: Feb 2018 Location: Florida iTrader: (0)	Ngl it looks alright, I wouldn’t run one though. I’ve seen tackier things put on G80s e.g. Attached Images
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04-25-2023, 12:13 PM	#15
LuckyBrand Captain 1355 Rep 896 Posts Drives: BMW X5 F15, G05 X5, G80 M3 6sp Join Date: Dec 2020 Location: Michigan iTrader: (0)	Nope!
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04-25-2023, 12:58 PM	#16
1209582 First Lieutenant 793 Rep 309 Posts Drives: bmw Join Date: Nov 2022 Location: United States iTrader: (0)	double the downforce?
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04-25-2023, 09:40 PM	#17
jmg Lieutenant General 18748 Rep 14,118 Posts Drives: G82 M4C X-Drive Join Date: Mar 2013 Location: Orange County, CA iTrader: (1) Garage List 2022 G82 M4C X-Drive [9.85] 2018 F80 M3 CS [9.87] 2019 i3 BEV [0.00]	There is a reason the rear window is so raked on the G80. Letting the air flow stick to the rear window decreases drag. The roof spoiler totally defeats any positive effects your boot spoiler is giving you. I can see them on hatchbacks, where the roof spoiler functionally acts as a rear spoiler. However, on a G80 or G82, a roof spoiler increases drag and reduces lift less than with just a trunk spoiler. Worse yet, it increases drag almost as much as a bigger trunk spoiler, but without any lift reduction benefits. Here's a video about how the roof spoiler affects drag and lift . Go to 8:16 in the video Attached is the graph for easy reference. If I were looking to increase aerodynamic properties, it's a waste of money, but I think it looks kind of cool and if you enjoy how it looks then Attached Images __________________ 2022 G82///M4 Competition X-Drive - KW-HAS, EBC Bluestuff, Millway Race Camber Plates, Cup2 Connect, PSI High Flow Midpipe, Lightweight Front Lip, M Perf Flow Through Wing Previous • 2018 F80 ///M3 CS • 2016 F80 ///M3 IG: Raging_G82 Last edited by jmg; 04-27-2023 at 02:48 PM..*
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04-25-2023, 10:50 PM	#18
MMM.PWR Sith Lord 3454 Rep 893 Posts Drives: G80X, Mazda 3 6MT (daily) Join Date: Nov 2021 Location: Wisconsin iTrader: (0) Garage List 2022 BMW M3 Comp. [10.00]	rice __________________ Always two there are.
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04-25-2023, 11:44 PM	#19
wazzza Captain 868 Rep 684 Posts Drives: 2023 G80x M3C Join Date: Oct 2012 Location: Seattle, WA iTrader: (0) Garage List 2023 BMW M3 Competi ... [9.75]	Nope. __________________ 2023 G80x M3C \| 2018 X5M [Current] 21 G80 M3C \| 19 AUDI RS5 \| 15 F06 M6 GC \| 18 AMG C63S Coupe \| 15 F82 M4 \| 14 M235i \| 08 E92 328xi \| 95 E36 328i R.I.P [Previous]
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04-27-2023, 11:47 AM	#22
Zamorskii Lieutenant 187 Rep 476 Posts Drives: '23 M3CX Join Date: Sep 2008 Location: Bloomington, MN iTrader: (1)	It reminds me of AC Schnitzer spoilers from e46 era. Looks fine to me, but I am personally interested only in functional parts. __________________
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