SKU: 14113122681

Dinan Free Flow Axle-Back Exhaust - 2017-2020 BMW 440i - D660-0077-BLK

Sale price$742.48 Regular price$824.98
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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

Dinan Free Flow Axle-Back Exhaust - 2017-2020 BMW 440i - D660-0077-BLKOverview: Dinan engineers designed the F33 F36 440i exhaust to improve exhaust flow by reducing back pressure, resulting in increased power output and a great sporty sound that is civilized when you want it to be, and pleasantly aggressive under hard acceleration. Not only is the tone improved but the additional burbles and pops that come with it are simply intoxicating. Dinan also incorporates a Helmholtz chamber design that reduces resonance

Overview:

Dinan engineers designed the F33/F36 440i exhaust to improve exhaust flow by reducing back pressure, resulting in increased power output and a great sporty sound that is civilized when you want it to be, and pleasantly aggressive under hard acceleration. Not only is the tone improved but the additional burbles and pops that come with it are simply intoxicating. Dinan also incorporates a Helmholtz chamber design that reduces resonance or"drone" at low RPM. The system is built to exacting specifications to ensure the perfect fit using the factory hangers. It is made from 100% 16 gauge 304 stainless steel and will resist corrosion for years to come. The design features twin 89mm (3.5") polished or ceramic black exhaust tips for a tasteful high-performance look. The factory computer-controlled exhaust valve is eliminated.

Features:

  • More Power: + 6 HP @ 6600 RPM, + 5 LB-FT @ 6600 RPM
  • Helmholtz chamber to reduce drone
  • Enjoyably louder, sportier sound
  • Twin 89mm (3.5") laser engraved, polished or ceramic black exhaust tips
  • 100% 304 stainless steel construction
  • Uses the factory brackets and hangers for a factory-like fitment

Application:

Year Make Model Submodel Engine Size
2017 - 2018 BMW 440i Gran Coupe Base 3L L6
2017 - 2018 BMW 440i Base 3L L6

Specs:

Brand Dinan
Dinan Point Value 3
Emission Code 5
Height 11
Labor Time (Hours) 1.2
Length 48
Material 304 Stainless Steel
Max HP Gain 6 @ 6600 RPM
Max Torque (lb-ft) Gain 5 @ 6600 RPM
Product Type Axle-Back Exhaust
Sound Level Aggressive / Moderate
System Type Axle-back
Warning California Proposition 65
Weight 45
Width 30
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 14113122681

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Lake Worth, US
★★★★★ 3
It’s so invisible
So basically, I am 15 I accidentally went to my school in these but during free period my friend told me I was so embarrassed because at that point all the moisture became out of it and it was very visible. It’s not a bad product just to make sure to take it off before school/work.
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Reviewed in the United States on July 28, 2025
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Gregory L Stallworth
Cuba, US
★★★★★ 5
Skin care for Mature Skin
I have Mature skin. I have tried many products to no avail. These 3 Korean products did my skin wonders on day 1. My very favorite is the Oil Cleaner. 2 are the toner pads that have Collagen Peptides and Rice Water. They're thin and you really can place them on your face like a sheet mask. Amazing! 3 the Pore Minimizer Serum shrank the large pores on each side of my nose. It leaves my skin So Pretty that I don't wear makeup but on special occasions. The price is a steal also.
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Reviewed in the United States on November 15, 2024
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Katie Welsh
Charlottesville, US
★★★★★ 5
Unbelievable results even for a skeptic like me!
I honestly don't know what witchcraft this brand uses, but I was given their eye patches as a gift and could not believe how well they worked. I am hugely skeptical, usually only believe really in actual Botox, plastic surgery, etc. So I thought the eye patches would be a waste of time. But I put them one one morning when my under eye area was all wrinkled and dried up like a prune. They were MAGIC. Then recently I saw these masks and thought I'd better try them. I have EXTREMELY SENSITIVE skin, to the point where I need regular dermatological care and can't use ANYTHING on my face. My cheeks burn and are red and like sandpaper ALL the time. But I put this mask on around 7 AM when my skin was at its most calm and non-red. I left it on for about 50 mins. Unbelievable results. My whole face is moisturized, nothing hurts, everything looks tight but feels lovely. Really impressed. I'll try to take pics next time and edit this.
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Reviewed in the United States on April 24, 2026
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Billie Jean
Lowell, US
★★★★★ 5
Best mask ever used.
I am amazed by this mask! I used last night for the first time and am seeing smoother skin this morning! I've used a few other masks, to include a very expensive one that promises immediate results, but none of them compare to what I am seeing this morning! I subscribed to receive these on an ongoing basis and am so glad I did.
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Reviewed in the United States on April 28, 2026
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Shannon Campbell
Charlottesville, US
★★★★★ 5
Worked great for my skin
First time I used this face mask was after a 10 minute Vitamin C 'peel' and application of 1.5%glycolic acid (with a facial pad). Left it on for about 45 minutes at which point the mask felt 'dry'. My skin felt so soft afterwards- it literally absorbed all of the moisturizing elements. Easy to apply and stayed put until removed. Highly recommend!
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Reviewed in the United States on January 21, 2026

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