


K&N Filter Universal Rubber Round Straight Filter 20 Deg Angled 2-7/16in Flange 3-3/4in OD 4in H
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
K&N Filter Universal Rubber Round Straight Filter 20 Deg Angled 2-7/16in Flange 3-3/4in OD 4in HSKU: RU 1750 UPC: 024844010353 K&N RU 1750 Universal Clamp On Air Filter 20 Deg Angled 2 7 16in Flange 3 3 4in OD 4in H The K&N RU 1750 is a high performance universal clamp on air filter designed for racing vehicles radio controlled cars generators snowmobiles tractors and custom intake applications. Its 20 degree angled molded rubber flange measures 2 7 16 inches inside diameter with 3 3 4 inch outside diameter and 4 inch height for secure vibration
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4.0 ★★★★★
Based on 1733 reviews
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Product Reviews
★★★★★ 3
It’s ok
Style: BE-157P 1-Pack
Not a perfect fit, decent quality. Fair product since it was significantly cheaper than the manufacturer filter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 2, 2026
★★★★★ 5
Fits 2005 325xi
Size: 2002-2005 E46
Snapped perfectly into place. Zero play with the fit and hood hinge still just as accessible as oe grille. No trimming required. If you’re sick of snapping your grille back in every time you lift the hood, buy it!
I also have the colored grill inserts and they snap on perfectly with no play.
https://a.co/d/3F83eFx
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2024
★★★★★ 5
Fit is perfect and these have a very nice glossy finish
Size: 2002-2005 E46
Fit is perfect and these have a very nice glossy finish, which looks much better than the matte finish. As others have said, the driver's side grill lacks a cut out where the hood latch pull handle swings out when you need to lift the hood (compare the driver's side grill with the existing grill to see location and size of the cut out). I was able to cut an opening within 10 minutes and I haven't had any problems opening the hood since the installation.
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Reviewed in the United States on March 31, 2018
★★★★★ 4
Nice Finish, Decent Fit
Size: 2002-2005 E46
The fitment isn't perfect like the OEM grilles, but overall I was satisfied. These are just slightly smaller than the originals so there is a little play once installed. No need to modify the LH side grille for clearance to the hood latch though as other reviews mention. It looks like the design has been revised to address that problem. I was impressed with the paint finish and there weren't any noticeable blemishes like dust or dirt in the paint. These are probably the best and cheapest gloss black kidney grilles for E46 that are currently available. OEM grilles w/ gloss black are basically discontinued so we're all stuck with aftermarket if you want the gloss black shadowline look.
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Reviewed in the United States on October 22, 2019
★★★★★ 5
loose fitment
Size: 2002-2005 E46
I guess it's a hit or miss with this. You either get perfect fitment or poor fitment like I did, after the install it's very loose.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 3, 2020
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