M performance diffuser

B58 · 07-09-2018, 01:41 AM

Hey guys anyone rocking the M performance rear diffuser? I been debating on purchasing one for a perfect oem fitment or a simple china made carbon fiber diffuser. Pictures would be great if any F30 owners have this!

Zara · 07-09-2018, 01:37 PM

Just get one off eBay and save yourself hundreds, fitment shouldn't be a problem. I got a regular flat black one and haven't had issues whatsoever and it still looks great.

cosmicdebris48059 · 07-11-2018, 08:38 PM

Quote:

Originally Posted by ericbilt

Hey guys anyone rocking the M performance rear diffuser? I been debating on purchasing one for a perfect oem fitment or a simple china made carbon fiber diffuser. Pictures would be great if any F30 owners have this!

Careful of cheap eBay carbon fiber diffusers! This was my experience. Seller argued with me that the bumper had to come off for it to be fitted properly. There was obviously no way this was going to work!?. Cost me $100 to return it.. Ordered one from **********s the other day for not much more than what I paid for the eBay one.

B58 · 07-11-2018, 09:15 PM

Quote:

Originally Posted by cosmicdebris48059

Careful of cheap eBay carbon fiber diffusers! This was my experience. Seller argued with me that the bumper had to come off for it to be fitted properly. There was obviously no way this was going to work!?. Cost me $100 to return it.. Ordered one from **********s the other day for not much more than what I paid for the eBay one.

Samething happen to me I ordered one and had it painted gloss black from a body shop and it didn’t fit. I ended up snapping the diffuser in half and tossing it in the recycle bin.. another reason why I wanted the oem M diffuser for a perfect fit I just can’t find any pictures of it on a 340i

wdeerfield · 07-12-2018, 08:50 AM

I got a poly one off ebay. fitment is 98% perfect. There are no differences between the 335 and the 340 when it comes to the rear bumper. only difference is the tail lights

Calvin36 · 07-13-2018, 02:43 AM

Bought mine off someone who bought it on eBay. I've saw and heard of some pretty
Bad fitment ones. Definitely check the sellers reviews about fitment prior to purchase. Mine is about 98% fitment. Just a mm or so off on the ride side where the bend is.

cosmicdebris48059 · 07-13-2018, 07:06 AM

Quote:

Originally Posted by wdeerfield

I got a poly one off ebay. fitment is 98% perfect. There are no differences between the 335 and the 340 when it comes to the rear bumper. only difference is the tail lights

Looks Good! I like how it covers the reflectors. Unfortunately the CF one I finally found and ordered doesn't.

wdeerfield · 07-13-2018, 08:17 AM

Quote:

Originally Posted by cosmicdebris48059

Looks Good! I like how it covers the reflectors. Unfortunately the CF one I finally found and ordered doesn't.

the reflectors are wrapped in matte black vinyl to match the diffuser. i didnt realize in the photo how seamless it looks.

cosmicdebris48059 · 07-13-2018, 08:33 AM

Quote:

Originally Posted by wdeerfield

Quote:

Originally Posted by cosmicdebris48059

Looks Good! I like how it covers the reflectors. Unfortunately the CF one I finally found and ordered doesn't.

the reflectors are wrapped in matte black vinyl to match the diffuser. i didnt realize in the photo how seamless it looks.

lol... I thought it was odd for the polyurathane one to cover the reflectors!?... I've seen the CF ones though.

Solidjake · 07-13-2018, 10:01 AM

I got mine off Amazon (had a gift card from work). No issues

B58 · 07-13-2018, 11:20 AM

Quote:

Originally Posted by cosmicdebris48059

Looks Good! I like how it covers the reflectors. Unfortunately the CF one I finally found and ordered doesn't.

Which CF did you purchase?

cosmicdebris48059 · 07-13-2018, 11:45 AM

Quote:

Originally Posted by ericbilt

Quote:

Originally Posted by cosmicdebris48059

Looks Good! I like how it covers the reflectors. Unfortunately the CF one I finally found and ordered doesn't.

Which CF did you purchase?

I believe it was listed as an M Performance style. However I don't believe it's and actually BMW part cause I didn't pay the "M Performance" BMW premium price. I haven't received it yet, just ordered it last Thursday so hopefully I'll get it Tuesday or Wednesday and be able to install it before or just after I have my new wheels and tires installed.

Sayzar · 07-24-2018, 12:57 PM

Quote:

Originally Posted by ericbilt

Hey guys anyone rocking the M performance rear diffuser? I been debating on purchasing one for a perfect oem fitment or a simple china made carbon fiber diffuser. Pictures would be great if any F30 owners have this!

OEM best fitment

thumbnail (63) by , on Flickr

wdeerfield · 07-24-2018, 07:43 PM

Quote:

Originally Posted by Sayzar

OEM best fitment

Thats an f32

MUFCbmwbear · 07-24-2018, 08:09 PM

340i with ebay Mperf diffuser

_tlink · 07-25-2018, 10:52 AM

Quote:

Originally Posted by Sayzar

OEM best fitment

thumbnail (63) by , on Flickr

Love the 2 tone paint job on it man looks killer!!

cdwalls · 07-25-2018, 11:08 AM

Quote:

Originally Posted by MUFCbmwbear

340i with ebay Mperf diffuser

Looks great, what part of chicago?

MUFCbmwbear · 07-25-2018, 11:44 AM

Quote:

Originally Posted by cdwalls

Quote:

Originally Posted by MUFCbmwbear

340i with ebay Mperf diffuser

Looks great, what part of chicago?

North Center/Lakeview area of Chicago
Drive up to Lake County for work couple times a week.

Sayzar · 07-25-2018, 03:20 PM

Quote:

Originally Posted by wdeerfield

Thats an f32

F36

B58 · 07-26-2018, 09:01 PM

Quote:

Originally Posted by MUFCbmwbear

340i with ebay Mperf diffuser

looks good!

Vinboyblue · 07-27-2018, 04:13 PM

Recently installed an ebay CF diffuser. Fitment was about 95%

Couple little tips
-hang the diffuser over each exhaust tip gently (at first it might seem like its bent downwards) this just makes it easier to install.

-If the tabs are bent downward, DO NOT try to straightening it, (I recall someone recommending that, I ignored that advise, the taps hook way better with the tabs bent downward).

-Mines didn't come pre-drilled, I lined up my OEM diffuser with the new diffuser and marked the holes. Mark the holes 2-3mm higher, you can adjust after for a better fit by drilling slightly bigger holes.

-Make sure u hear a click when u press the tabs in, especially on the ends of the diffuser.

-I also used little rubber washers on my screws, so they don't damage the CF.

nissanite · 07-28-2018, 06:42 PM

It took about 3 minutes to install the M Performance version. Perfect fit, everything lined up.

07-09-2018, 01:41 AM	#1
B58 Major 558 Rep 1,456 Posts Drives: 922 Turbo Join Date: May 2018 Location: USA iTrader: (1)	M performance diffuser Hey guys anyone rocking the M performance rear diffuser? I been debating on purchasing one for a perfect oem fitment or a simple china made carbon fiber diffuser. Pictures would be great if any F30 owners have this! __________________ 2024 X3 M40i 2014 BMW M5
	Appreciate 0 Tweet Quote

07-09-2018, 01:37 PM	#2
Zara Lieutenant 611 Rep 434 Posts Drives: 2014 335i Join Date: Jun 2017 Location: Chicago iTrader: (1)	Just get one off eBay and save yourself hundreds, fitment shouldn't be a problem. I got a regular flat black one and haven't had issues whatsoever and it still looks great. __________________ 2014 335i 6MT /// Mineral Gray - Red Coral \| M Perf Spoiler \| M Perf Lip & Diffuser \| M Perf Grilles \| M Perf Side Splitters \| M Perf CF & Alcantra Interior Trim \| \| Wagner Evo II FMIC \| VRSF DP \| AA CP \| CTS Turbo Intake \| MHD Stage 2 Tune \| H&R Sports \| Bilstein B8s \|
	Appreciate 0 Quote

07-12-2018, 08:50 AM	#5
wdeerfield A family of bimmers 2745 Rep 7,741 Posts Drives: '18 G01 X3M40i Join Date: Jan 2012 Location: Clifton Park, NY iTrader: (0)	I got a poly one off ebay. fitment is 98% perfect. There are no differences between the 335 and the 340 when it comes to the rear bumper. only difference is the tail lights __________________ 2018 PB/Black G01 X3M40i \| 699M \| ZDA \| ZPP \| ZPX \| Maxton front lip \| X3M vents \| 15mm Spacers \| Diamond G20 style grills
	Appreciate 0 Quote

07-13-2018, 02:43 AM	#6
Calvin36 Lieutenant Colonel 1062 Rep 1,876 Posts Drives: F30 335i M Sport Join Date: May 2017 Location: San Francisco iTrader: (2)	Bought mine off someone who bought it on eBay. I've saw and heard of some pretty Bad fitment ones. Definitely check the sellers reviews about fitment prior to purchase. Mine is about 98% fitment. Just a mm or so off on the ride side where the bend is. Attached Images __________________ Mine: BSM F30 335i M Sport Hers: AW F30 328i M Sport
	Appreciate 0 Quote

07-13-2018, 10:01 AM	#10
Solidjake ¯\_(ツ)_/¯ 945 Rep 1,762 Posts Drives: '13 328i Msport 6MT Join Date: Jun 2009 Location: NYC/SNJ iTrader: (2)	I got mine off Amazon (had a gift card from work). No issues __________________ Tensioner/belt DIY \| Side skirt extension DIY Apex SM-10/DWS06+ \| 400m/X-ice Xi3 \| Injen Exhaust \| Stoptech SS Lines \| 335 Front Brakes Hawk HPS 5.0 \| RBF600 \| ER Charge Pipes \| Wagner Evo Comp 2 FMIC
	Appreciate 1 wdeerfield2745.00 Quote

07-24-2018, 08:09 PM	#15
MUFCbmwbear Major 689 Rep 1,198 Posts Drives: 24 M2 & 20 M340xi Join Date: Nov 2008 Location: Chicago/Milwaukee iTrader: (0)	340i with ebay Mperf diffuser Attached Images __________________ 20 M340xi White Mocha 17 340i/M235i/E92 M3/135i All 6spd Chicago-Lake County-Milwaukee-Shorewood
	Appreciate 1 cdwalls701.00 Quote

07-27-2018, 04:13 PM	#21
Vinboyblue First Lieutenant 165 Rep 400 Posts Drives: BMW 335 Join Date: Sep 2013 Location: CAnada iTrader: (0)	Recently installed an ebay CF diffuser. Fitment was about 95% Couple little tips -hang the diffuser over each exhaust tip gently (at first it might seem like its bent downwards) this just makes it easier to install. -If the tabs are bent downward, DO NOT try to straightening it, (I recall someone recommending that, I ignored that advise, the taps hook way better with the tabs bent downward). -Mines didn't come pre-drilled, I lined up my OEM diffuser with the new diffuser and marked the holes. Mark the holes 2-3mm higher, you can adjust after for a better fit by drilling slightly bigger holes. -Make sure u hear a click when u press the tabs in, especially on the ends of the diffuser. -I also used little rubber washers on my screws, so they don't damage the CF. Last edited by Vinboyblue; 07-27-2018 at 04:20 PM..
	Appreciate 0 Quote

07-28-2018, 06:42 PM	#22
nissanite Private 46 Rep 68 Posts Drives: 340i M-sport Join Date: Jun 2018 Location: Florida iTrader: (0) Garage List 2016 BMW 340i [0.00]	It took about 3 minutes to install the M Performance version. Perfect fit, everything lined up.
	Appreciate 0 Quote