Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 14 - Jun 19
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Description
Active Autowerke G2X / G3X M340i / M440i Valved Rear Axle-back ExhaustG2X G3X BMW M340i M440i Rear Exhaust At Active Autowerke, it's not ONLY about making as much power as possible but to maximize the enjoyment of the drive. For 40 years, power has been the end result of improved performance due to our relentless desire to develop a refined, quality product. This philosophy behind our performance parts is best represented by one of the newest additions to our G2X G3X BMW M340i and M440i collection. The Active Autowerke
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.1 ★★★★★
Based on 2262 reviews
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Product Reviews
★★★★★ 5
More power, slightly lower (8%) MPG.
Size: (Pack of 1)
Installed on a 2.0 liter Subaru Impreza.
I drive up/down the I5 in california 3-4 times a year. For those that don't know there is about a 200 mile flat stretch where everyone runs at 75-85mph.
With various filters (FRAM, BOSCH, Subaru OEM), I would consistently get 29.8 mpg. Once I installed the K&N, I could feel the car pulling with a bit more power, but I noticed that I was getting about 27.5 mpg.
Totally worth it as the impreza is a little under powered and I don't drive many miles (6k/year) but if you are putting a lot of miles on your car, you may want to have more mpg.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
fits my 2013 chevy suburban 5.3 and appears to be high quality
Size: (Pack of 1)
fits my 2013 suburban perfectly. looks to be a well constructed unit.
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Reviewed in the United States on March 29, 2026
★★★★★ 5
Very good quality comparable to OEM at a much more reasonable price point.
Size: (Pack of 1)
Last December we bought our first new car in 21 years and the first thing I did is stock up on cabin and engine air filters. I've got nothing against dealership OEM parts and pieces but what I do have an issue with is the prices. Luckily, we all have a bit of control over access to OEM quality parts and pieces at significantly more reasonable prices via Amazon. This filter and it's matching cabin filter are excellent in value and take less than 5 minutes to replace. Compare that to paying the hourly rate at your dealer plus the dealership retail price and you'll do what I did and stock up on these two filters. Definitely recommended.
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Reviewed in the United States on September 25, 2025
★★★★★ 4
It will fit a 2022 Subaru Outback
Size: (Pack of 1)
Higher quality than OEM item fit and arrived on time. This was for a 2023 Subaru Outback
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Reviewed in the United States on September 15, 2025
★★★★★ 5
High quality
Size: (Pack of 1)
Looks a lot nicer than the one that came with my Subaru Outback (OEM). Performs the same or better.
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Reviewed in the United States on March 20, 2026
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