SKU: 24723793168

VRSF 4" HIGH FLOW CATTED DOWNPIPE FOR N55 EWG BMW M135I F20 M235I F22 335I F30 435I F32 & M2 F87 2013-2018

Sale price$449.55 Regular price$499.50
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Description

VRSF 4" HIGH FLOW CATTED DOWNPIPE FOR N55 EWG BMW M135I F20 M235I F22 335I F30 435I F32 & M2 F87 2013-2018NOTE: For vehicles with production date after 08 13 Please provide VIN at checkout for us to confirm. M135i, M235i, 335i, 435i, M2 N55 4 (08 13+) Increase performance and reduce back pressure with a high flow downpipe from VRSF. Faster spool, increased power and a more aggressive exhaust note. VRSF is known to offer high quality products at a very affordable price. Downpipes are hand crafted from 304 grade stainless steel with smooth bends to increase

NOTE: For vehicles with production date after 08/13

Please provide VIN at checkout for us to confirm.

M135i, M235i, 335i, 435i, M2 N55 4” (08/13+)

Increase performance and reduce back-pressure with a high flow downpipe from VRSF. Faster spool, increased power and a more aggressive exhaust note. VRSF is known to offer high quality products at a very affordable price. Downpipes are hand crafted from 304 grade stainless steel with smooth bends to increase flow.

  • Hand crafted 304 Stainless Steel construction
  • 200 cell high flow cat or decatted options.
  • CNC 304 stainless steel flanges.
  • Gains from 20-25hp with tune.
  • VRSF Lifetime Warranty

We are proud to introduce our VRSF catless & catted downpipe for your N55 BMW. This downpipe is THE best bang for the buck mod available. This downpipe is available in both catless (race) & catted configuration.

Back pressure is significantly reduced by eliminating the restrictive catalytic converter in the factory downpipe with our catless or high flow 200 cell race cat which results in faster spool, an increase in power & a more aggressive exhaust note.

VRSF downpipes are hand crafted from mandrel bent SS304 grade stainless steel and our CNC precision machined flanges are also constructed from billet 304 grade stainless steel. All VRSF products include a lifetime warranty as well as our “No Hassle” satisfaction guarantee (including fitment). All M135i & 335i models produced up to 07/13 require the 3.5″ version of this downpipe. M135 and 335i models produced after 07/13 require the 4″ model of this downpipe. All M235 and 435i models require the 4″ version of this downpipe. Please confirm by looking at your Turbo Wastegate. It is located on the lower passenger side of the engine next to the Turbo. See picture below for reference.

Note: We also offer ceramic coating services utilizing Cerakote High Temperature Ceramic coating, made to withstand temperatures up to 1800F. We use Cerakote’s best thermal barrier coating which helps keep the hot air inside the exhaust and out of the engine bay which decreases overall intake air temps along with engine and transmission oil temps. Please note that while we do offer a lifetime warranty on the downpipes, we only offer a 1 year warranty on the ceramic coating as well as the catted versions.

VRSF CATTED 4.0″ N55 STAINLESS STEEL DOWN PIPE

  • Made from hand crafted, tig welded 304 grade stainless steel.
  • Smooth radius bends to decrease turbulence and increase flow.
  • 200 cell high flow cat as well as catless options available.
  • CNC SS304 stainless steel flanges.
  • Gains from 20-25hp with tune.
  • VRSF Lifetime Warranty
This item fits the following BMWs:

2013 – 2018 F30 BMW 335i & 335xi N55
2013 – 2018 F32/F33/F36 BMW 435i & 435xi N55
2013 – 2018 F20/F21 BMW M135i & M135xi N55
2013 – 2018 F22/F23 BMW M235i & M235xi N55
2015 – 2019 F87 BMW M2 N55
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: 24723793168

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4.6 ★★★★★
Based on 18 reviews
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Cody Mills
Bozeman, US
★★★★★ 5
Will buy again!
Configuration: 4-Stroke, Size: 1 GA, Configuration: 4-Stroke, Size: 1 GA
This is my second time using this oil to service my 2022 Mercury 90 outboard. Excellent oil! Engine runs extremely smooth. The jug was very easy to pour from. No smoke from the engine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
A
Verified Purchase
albert smart
Chelsea, US
★★★★★ 5
Good
Configuration: 4-Stroke, Size: 1 GA, Case of 3
Good
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Reviewed in the United States on May 15, 2026
M
Verified Purchase
mattw
Pawtucket, US
★★★★★ 4
Oily situation lol
Configuration: 4-Stroke, Size: 1 GA
Honestly how do you write a review of this product? I would have to run tests for years on multiple oils on various engines to do so. The value was good however and shipping was great
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Reviewed in the United States on March 31, 2025
P
Verified Purchase
Peter Schott
Fort Morgan, US
★★★★★ 5
Use the best oil to protect your investment
Configuration: 4-Stroke, Size: 1 GA
Great product.
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Reviewed in the United States on September 30, 2025
S
Verified Purchase
Steve M.
Chelsea, US
★★★★★ 5
Works well. You need to drill a 3/8” hole
Appears to be well made, alignment bar slides in nicely. As stated, you need to drill a hole in the bar for the gimble bearing driver, the directions are not clear, what I did was before I take out the old gimble bearing, put an O ring on the bar close to the last step on the bar, slide the bar all the way in, then carefully slide the bar out, this marks the distance from the back of the gimble bearing to where the shaft on the outdrive bottoms out, move the O ring a 1/4” towards the stepped part of the alignment tool (this is so you won’t bottom out the alignment tool when driving the gimble bearing in) then slide the driver puck up to the O ring and use a 3/8” diameter transfer punch through the side hole in the puck to mark the bar. You need to drill a 3/8” diameter hole in the alignment bar, two V blocks, some clamps, and a drill press will make drilling much easier, after the bar is securely mounted and centered in the drill press, use a center drill, then 1/4” drill first, using plenty of oil, drill all the way through, then use the 3/8” drill, deburr both sides and you should be good to go. People complain that it doesn’t come pre-drilled, the reason is that not all out drives are the same so you have to fit it to the outdrive that you have. Fortunately, I have a machine shop at my house and have a jig setup with various drill bushings, but the method I described above should work for you. Just make sure you’re perfectly centered and secure before you start drilling.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026

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