SKU: 23661210857

BAFFLED OIL SUMP I BMW N55 F2x I F3x I M135i I M235i I 335i I 435i

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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

BAFFLED OIL SUMP I BMW N55 F2x I F3x I M135i I M235i I 335i I 435iIts well documented that the N55 engine found in the M135i I M235i I 335i I 435i is prone to oil starvation issues when pushed hard on the road and even more so when used on track. If you're ever planning to use your car on track, or even particularly hard road driving, this really is an essential upgrade. Total engine failure is a very real possibility if not. Ask us how we know.! The problem is especially pronounced under hard braking, when the oil

It’s well documented that the N55 engine found in the M135i I M235i I 335i I 435i is prone to oil starvation issues when pushed hard on the road and even more so when used on track.

If you're ever planning to use your car on track, or even particularly hard road driving, this really is an essential upgrade. Total engine failure is a very real possibility if not. Ask us how we know....!

The problem is especially pronounced under hard braking, when the oil pools at the front of the oil pan under the lateral g-force, allowing the pick-up to run dry. Even a fraction of a second of no oil feed can be enough to do lasting damage to your engine, any longer and it's almost certain to lead to engine failure. And that's where this Baffled Sump comes in.

The MMR Performance Baffled Sump has been extensively engineered from the ground-up to provide effective oil control, reducing surge and maintaining a more constant oil pressure; it's the ultimate bolt-in solution available to protect your engine's longevity.

Featuring a total of 7 sophisticated one-way oil control flaps and specific baffling, the T-6061 anodised MMR sump baffle has been tested over thousands of miles of track and road use where the data we collected has proven its effectiveness, plus highlighted that it's baffles correct the worst surge problems under hard braking.



Unlike other solutions available that require a plate to be welded in, the MMR solution is simply bolted into place making the addition of the baffle considerably easier and more accessible to install.

Fitment really is an absolutely essential insurance policy for any hard-driven N55 car.



Note: For reference, normal idling pressure when warm is 1.5 bar.

 

1 Series  F20/F21 2011 - 2019 M135i N55
2 Series  F22/F23

2013 - 2020
M235i N55
3 Series F30/F31

2011 - 2019
335i N55
4 Series F32/F33

2013 - 2020
435i N55

 NOTE: Does not fit x-Drive Models.

Shipping Notes
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Exchange/Return Notes
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SKU: 23661210857

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Pamela
Pawtucket, US
★★★★★ 5
Great for wide feet
Size: 9, Color: Black Nubuck
Beautiful- great for wide feet, camouflage slight swelling in feet / ankles beautifully. Look great with everything; adds a touch of elegance & rock star. Super fast shipping too!
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Reviewed in the United States on November 8, 2025
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Robin
Lake Worth, US
★★★★★ 5
Sizing.
Size: 10, Color: Natural Nbpu
They run big, I usually wear a size 9 wide, but since they didn't come in a wide, I chose a 10 and they fit comfortably width wise, but they were too big otherwise. I would recommend letting viewers know if it is a wide shoe to let buyers know, to better serve the customer on what size to purchase, other than that, I loved the shoes just wish I could've kept them and worn them for my event.
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Reviewed in the United States on August 20, 2025
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Tamara
Lake Worth, US
★★★★★ 1
Not worth the price
Size: Medium, Color: Dark Cappuccino
Item was gifted for Christmas. Within 3 weeks stitching was coming out of the straps.
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Reviewed in the United States on January 12, 2026
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Chasie
Dallas, US
★★★★★ 5
Positive
Size: Medium, Color: Dark Cappuccino
The dark cappuccino brown is pretty. This is a favorite just because of the color of the tote. The inside lining color makes it easy to find items. I like it so much I ordered the black one.
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Reviewed in the United States on December 28, 2025
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Eliza
Natrona Heights, US
★★★★★ 5
Insanely great jeans for the price!
Special Size: Wide Leg Crop, Size: 12, Color: Medium Blue Vintage
I’m obsessed with these jeans. They’re comfortable and I think they legitimately look great. I had a baby 6 months ago and my body is “in transition” so I didn’t want to buy anything too expensive. These are cute, fit well, good quality. Excellent for short girls - I’m 5’ tall and they’re exactly the right length for a full-length jean. I feel like they’re fashionable without being too trendy (they work for 30somethings as well as 20somethings). They’re nice thick cotton with very little stretch. Because of that I’d be conservative with sizing because they do stretch significantly when you wear them. I got these in the lighter blue, too. The darker wash is slightly smaller and I wound up liking the color better, too. But the light wash is nice.
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Reviewed in the United States on November 16, 2025

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