SKU: 51747372163

Cobra Sport BMW M3 (F80) 3" Valved Primary Cat Back Performance Exhaust

Sale price$1069.86 Regular price$1188.73
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Description

Cobra Sport BMW M3 (F80) 3" Valved Primary Cat Back Performance ExhaustFits to Primary O E Catalyst Pre PPF models only. (Requires 2 x BMW gasket part number 18307851168 not included). Cobra Sport performance exhausts enhance the sound, looks and quality of your vehicle giving you the ultimate driving experience. Our sports exhausts range is fully guaranteed to give you assurance of our quality. This BMW M3 (F80) Coupe performance exhaust is made in 3" 76. 2mm pipework and fits from the primary catalytic converter

Fits to Primary O/E Catalyst - Pre-PPF models only. (Requires 2 x BMW gasket - part number 18307851168 - not included).

Cobra Sport performance exhausts enhance the sound, looks and quality of your vehicle giving you the ultimate driving experience. Our sports exhausts range is fully guaranteed to give you assurance of our quality.

This BMW M3 (F80) Coupe performance exhaust is made in 3"/76.2mm pipework and fits from the primary catalytic converter section backwards. This exhaust replace the secondary catalyst (Cat Bypass), centre and rear sections.

This exhaust includes the secondary de-cat and is sold for motorsport and off road use only and will NOT be able to pass a UK MOT emissions test or police road side checks.

EML lights may activate after removing the standard second O/E catalyst. An ECU Re-map is recommended to correct this problem and stabilise all power increases.

This primary cat back exhaust includes a H-pipe section to combine and equalise the gas flow giving a sportier exhaust note.

Please Note - This performance exhaust retains the use of exhaust valves. When switching drive modes (e.g. Normal to Sport+ mode) your exhaust tone will continue to swop from quieter to louder tones as before.

Fits to pre-PPF vehicles only.

Requires 2 x BMW gasket - part number 18307851168 - all other relevant gaskets and fittings are supplied.

Press Release

Keen to make a step above and differentiate from the competition, Cobra Sport have used their extensive experience and use of new exhaust technology to create a product which truly stands out in the aftermarket performance market.

The Cobra Sport research and development team quickly made the decision to base the new M3 exhaust systems on 3" (76.2mm) T304 grade stainless steel pipework. The larger diameter 3" pipework enhances the capabilities of the 3.0 litre twin turbo straight-6 engine and utilising advanced gas flow design, allows for substantial performance improvements. The M3 development has been based around a valved cat back exhaust with the addition of a secondary de-cat (catalyst bypass) exhaust upgrade. The cat back exhaust includes a centre H-Pipe section, designed to mix and perfectly balance gas flow from both sides of the engine to increase power, improve flow efficiency and enhance the exhaust tone.

Extensive road testing was undertaken in order to ensure there was no resonance or exhaust drone in the cabin throughout the rev range in all drive modes. The sound of the new Cobra Sport exhaust boast vastly improved tonal characteristics, with the new exhaust offering a deeper more aggressive sound when under full load. The Cobra Sport exhaust incorporates a pair of exhaust valves designed to utilise the existing valve motors , enabling continued use of the M3 drive modes to adjust the dynamic of the exhaust. In the comfort driving mode the valves remain shut forcing the gas flow through the flow optimised rear box, creating a finely tuned exhaust note for a sporty but unobtrusive sound track for everyday use. With the valves open in Sport and Sport+ mode, the gas flows through all 4 tips creating a highly aggressive sound track.

Cobra Sport Sales Manager Matt Thomas commented, "Building on an existing first class reputation in the BMW tuning market, we're excited to be adding the Cobra Sport sound and performance upgrade to the stunning M3. Power testing the secondary de-cat and cat back system revealed an impressive +21.25bhp and +9.2lb-ft of torque. The free flowing 3" pipework and optimised exhaust technology opens up huge potential for M3 owners looking to increase power whilst also obtaining a pitch perfect exhaust tone."

Cobra Sport have improved the styling of the BMW M3, creating a noticeably enhanced and balanced look to the rear of the M3 with a choice of quad 3.5in (88.9mm) inward rolled baffled or inverted highly polished stainless steel tailpipes. For those looking to take the style upgrade a stage further, upgraded ceramic coated matt black 'Blackout' tailpipes are available.

Media

Example of the BMW M4 Performance Exhaust (Valved Primary Cat Back Exhaust).

Interior Sound Example of the BMW M4 Performance Exhaust (Valved Primary Cat Back Exhaust).

Fitting Video - BMW M4 Performance Exhaust (Valved Primary Cat Back Exhaust).

Rolling Road Power Testing - BMW M4 Performance Exhaust (Valved Primary Cat Back Exhaust).

Example of the BMW M4 Performance Exhaust (Valved Secondary Cat Back Exhaust).

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
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 51747372163

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Freddy Maldonado
Omaha, US
★★★★★ 5
Good deal
Size: 8.5, Color: Black Leather
Honestly for the price there hard to beat. They look nice and are comfortable indeed, I like the silent step "non clackers" . For the size I'll recommend your normal size as they have a built in stretch part for extra comfort unless you know you have wide feet then go for the W, my 8 1/2 (non wide) fit perfectly without an issue. I'm just surprised that they came not in a box, there wrapped up well though didn't come damaged. For fancy shoes that don't come in a box there pretty good. 👍
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Reviewed in the United States on May 13, 2026
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Jimmy
Birmingham, US
★★★★★ 5
The perfect work shoe
Size: 13, Color: Black Leather
I wear dress shoes everyday and I’m on my feet a lot. My wife is the same way and would always praise Clarks, but I didn’t think much of it. I’d always get Nunn Bush or something like that, but they weren’t comfortable or last very long. I happened to be at a Clarks store that was closing one time and picked up a pair of these and boy did everything change that day. Not only are they comfortable they last a long time. I get about one pair a year. That doesn’t mean they only last a year, I just try to keep a nice looking pair. I can wear them all day and my feet don’t hurt. And you get all the comfort without the bulkiness of other comfort footwear companies. They fit nice and don’t pinch or rub anywhere. They are definitely worth the full price, but they go on sale regularly to an even better deal so keep an eye out.
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Reviewed in the United States on June 12, 2024
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Scott
Dallas, US
★★★★★ 5
Classic elegance with unmatched comfort
Size: 11 Wide, Color: Black Leather, Size: 11 Wide, Color: Black Leather
I recently purchased the Clarks Men's Oxford shoes, and I must say, I am thoroughly impressed. These shoes effortlessly blend classic elegance with unmatched comfort, making them a perfect addition to any wardrobe. The first thing that caught my attention was the timeless design. The Oxfords feature a sleek silhouette and high-quality leather craftsmanship that exude sophistication. Whether paired with formal attire or dressed down for a more casual look, these shoes consistently elevate my style. Beyond their aesthetics, the comfort level is exceptional. The cushioned insole provides excellent support throughout the day, making them ideal for long hours on my feet. Additionally, the outsole offers a confident grip, ensuring stability on various surfaces. I also appreciate the attention to detail in the stitching and overall construction. It's evident that Clarks prioritizes durability, and I believe these shoes will stand the test of time. One minor aspect worth mentioning is the initial break-in period. Like most high-quality leather shoes, they required a few wears to conform to my feet perfectly. However, once they molded, the fit became incredibly comfortable. In conclusion, the Clarks Men's Oxford shoes offer a winning combination of style, comfort, and durability. Whether for formal events or daily wear, they consistently deliver a polished and refined look. I highly recommend these Oxfords to anyone seeking a timeless and reliable footwear option.
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Reviewed in the United States on July 29, 2023
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CJ
Chelsea, US
★★★★★ 5
Very Stylish!
Size: 11, Color: Dark Tan Leather
Surprisingly comfortable and very stylish. They can dress up an outfit of jeans and a nice shirt, next level look! 👏👏👏 True to size.
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Reviewed in the United States on December 31, 2025
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mckenna ♡
Phoenix, US
★★★★★ 5
amazing shoe for the price
Size: 11.5, Color: Black Leather
ordered these shoes last minute for my fiance- super nice quality, suer comfortable. honestly a great price for the quality you are getting! he said they were very easy to walk in as well! these shoes are true to size!
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Reviewed in the United States on November 10, 2025

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