AIRTEC Motorsport Downpipe Sports Cat for BMW G Series – M2, M3 & M4
SKU: 99904454326

AIRTEC Motorsport Downpipe Sports Cat for BMW G Series – M2, M3 & M4

Sale price$476.53 Regular price$529.48
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

AIRTEC Motorsport Downpipe Sports Cat for BMW G Series – M2, M3 & M4By replacing the restrictive primary catalytic converters located in the original downpipes with specially designed high flow sports cats, back pressure is reduced, which effectively improves the engines breathing by allowing it to expel gases more quickly. This in return means faster throttle response, increased power output and a more aggressive exhaust note. Complete with replacement fitting kit, the downpipes will mate to a standard or aftermarket

By replacing the restrictive primary catalytic converters located in the original downpipes with specially designed high-flow sports cats, back pressure is reduced, which effectively improves the engine’s breathing by allowing it to expel gases more quickly. This in return means faster throttle response, increased power output and a more aggressive exhaust note.

Complete with replacement fitting kit, the downpipes will mate to a standard or aftermarket exhaust system and come wrapped in a heat reducing covering.

Will fit the following models:

•     BMW G87 M2 (left and right-hand drive)

•     BMW G80 M3 (left and right-hand drive)

•     BMW G82 M4 (left and right-hand drive)

Please note:

-     Sports cats are sold for motorsport and off road use only and may not pass a UK MOT test or police road side checks.

-     An ECU recalibration is required in order to ensure the EML is not illuminated.

Features:

•     Direct replacement part to fit both left and right-hand drive

•     200 cell sports cats reduce restriction

•     Made from high quality stainless-steel

•     Fits original and aftermarket exhaust systems

•     AIRTEC Motorsport laser cut plaque

•     Heat reducing covering included

•     Comes complete with fitting kit

AIRTEC Part No: ATEXHBMW4

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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: 99904454326

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Erin E.
Alexandria, US
★★★★★ 5
Perfect Flavor: NONE
Style: Unflavored (Pack of 1)
I see reviews writing "it tastes bad". Get over it you big babies! It doesn't. I have an allergy to peppermint and other unnatural man-made toxic flavorings and this is perfect! After the first few times the flavor is irrelevant and you get used to it. It cleans and cleans well. I don't wake up after brushing before going to bed with a mouth full of slimy coating on my teeth and bad aftertaste like I did with the other fake flavored toothpastes. I use Cleure for all my teeth brushing and haven't had any dental problems. The paste is smooth and I don't have irritation. It's great...I just wish the price point was a little lower since there's less added garbage in it.
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Reviewed in the United States on May 7, 2026
K
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Kiwi
Chelsea, US
★★★★★ 5
Gentle, No harsh ingredients, no taste!
Style: Unflavored (Pack of 1)
This is the toothpaste you want if you want no additives or nothing. There's really no taste to it, but that's the whole idea you're getting no additives no nothing. It does have baking soda, and xylitol these are two great ingredients but overall it's very gentle. If you're having any problems with skin or anything and you feel it could be from either fluoride, mint flavoring, SLS, or coconut oil or all the other stuff they put in there give this a try! I'm on my second tube! Yes you're not going to feel as super clean as the other ones but that's because it's not stripping everything off your teeth like the other ones do it's very gentle and if there's any issues with sensitivity or anything like that this is the way to go.
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Reviewed in the United States on November 29, 2025
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Arg
Port Orchard, US
★★★★★ 5
Good ingredients
Style: Unflavored (Pack of 1)
The ingredients in this may appear to be boring, but for a fragrance-free, flavor free, toothpaste this one is not bad at all. It has a little bit of sweetener in it and it does a good job at leaving my mouth feeling clean and my teeth polished. I am very happy with this product and it is replacing a similar product that I was not happy with. This is a product I will reorder and continue to use as I am happy with the cleanliness and freshness.
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Reviewed in the United States on April 14, 2026
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A. Fischer
Belleville, US
★★★★★ 4
No flavor toothpaste with a high price
Style: Unflavored (Pack of 3)
Great product at a not very great price. Maybe you came across this product while searching for unflavored or flavorless toothpaste. Well this does the trick it has no minty flavor to interfere with your morning coffee or your autism. But why does less ingredients mean a higher cost? I’m looking for something bare bones, no taste, and cheaper than the toothpaste they sell at most stores filled with chemicals! Why is this so hard to find?
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Reviewed in the United States on February 15, 2026
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Barb
Birmingham, US
★★★★★ 5
Acid Reflux and LPR
Style: Unflavored (Pack of 1)
I follow a dietician for those who deal with Acid reflux and LPR. Being without flavor especially peppermint, as mentioned by the dietician, can be helpful for some. I have found this to be true with this product. It seems to have helped reduce, or at least not add to, my feeling of throat and mouth burning.
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Reviewed in the United States on May 13, 2026

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