


aFe Silver Bullet Throttle Body Spacer 12-15 BMW 328i (F30) L4-2.0L N20/N26
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
aFe Silver Bullet Throttle Body Spacer 12-15 BMW 328i (F30) L4-2.0L N20/N26SKU: 46 31009 UPC: 802959461266 aFe Silver Bullet Throttle Body Spacer 12 16 BMW 220i 320i 328i 420i 428i (F2X 3X) L4 2. 0L N20 N26 The aFe Silver Bullet Throttle Body Spacer creates turbulence in airflow entering the engine on BMW 2. 0L N20 N26 equipped models from 2012 to 2018. This design increases horsepower torque and throttle response while enhancing fuel efficiency. Machined from T 6061 billet aluminum it features a serrated helix entry that
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4.4 ★★★★★
Based on 1148 reviews
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Product Reviews
★★★★★ 5
quick and easy fit
Size: 1.9" x 9.9" x 11.4"
Instructions made it a very quick and easy fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
★★★★★ 5
Nice air filter
Replaced my K&N filter with this KAX filter. Same performance and better mileage.
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Reviewed in the United States on April 13, 2024
★★★★★ 5
A Great Filter (Installed on a 2014 Acura RDX)
I installed this on a 2015 Acura RDX and it has been a fine replacement for the original air filter. The filter offers a good value and resembles the filter that it replaced and seems to be an equivalent replacement in every way. It fit into the housing perfectly and was just as easy to replace as the original filter was. The white color of the filter also makes it easy to see if an excess of dirt has built up on the filter.
I'd recommend this filter. The materials are good, it offers equivalent functionality, and great value for the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2025
★★★★★ 5
Excellent quality and price
The picture above is of two different brand engine air filters. One is a Fram Extra Guard and the other is the KAX filter, which costs half as much. Can you tell which one is the cheaper KAX filter? There may be a difference in material that is not visible, but they feel and look the same. It seems like a safe bet to try out the KAX and see how well it performs/lasts.
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Reviewed in the United States on May 25, 2024
★★★★★ 5
Just Right
Fits just right. The paper filter material seems to be the same quality as the brand name filter I took out with the only percievable difference is price and packaging. One nice thing here is that once taken out of the box, the filter is wrapped in light weight plastic so you don't get the new filter dirty when taking out the old one. Just unwrap it prior to installation for a clean install. Hope this helps.
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Reviewed in the United States on April 22, 2024
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