VRSF 3.5" Decat Catless Downpipe for BMW N55 PWG (Pre 07/2013) M135i 335i F20 F21 F30 - Brushed Stainless

VRSF 3.5-inch de-cat turbo outlet pipe for BMW N55 PWG, brushed stainless, pre 07/2013 1 Series and 3 Series

Looking for a serious exhaust upgrade for your BMW 1 Series or 3 Series with the N55 single turbo and pneumatic wastegate pre 07/2013? This VRSF 3.5-inch catless front pipe delivers rapid spool, reduced back pressure and a harder-edged soundtrack. Ideal for F20 and F21 M135i plus F30 335i platforms, it is a proven performance part for owners chasing stronger mid range torque and sharper throttle response.

We run this hardware on our own builds and have supplied it to many happy customers. Paired with a suitable calibration, typical gains of 20 to 25 bhp are achievable, along with a more responsive feel throughout the rev range. If you are searching for a BMW M135i straight pipe, 335i race front pipe, N55 pre-2013 turbo down pipe, PWG wastegate pipework or F-series performance exhaust upgrade, this VRSF unit is a go-to choice.

Why enthusiasts choose this VRSF pipe

• Big reduction in exhaust restriction for faster turbocharger response
• Noticeable increase in mid range punch and throttle crispness
• More aggressive exhaust note that suits the N55 character
• Outstanding value for money as a core Stage 2 hardware mod

Construction and spec

• 3.5-inch diameter de-cat front section for N55 PWG applications produced before July 2013
• Hand fabricated from mandrel-bent 304 stainless steel with a brushed finish
• TIG-welded for strength and durability
• CNC-machined SS304 flanges for precise, leak-free fitment
• Available as a catless race pipe or with a high-flow 200 cell sports catalyst
• Gains of 20 to 25 bhp with a suitable tune
• VRSF lifetime warranty on the downpipe section

Vehicle compatibility

Designed for BMW N55 PWG engines built before 07/2013:

• 2012 to 2013 F30 BMW 335i and 335xi
• 2012 to 2013 F20 and F21 BMW M135i and M135xi

Model year guidance:

• M135i and 335i built up to 07/2013 use the 3.5-inch version
• M135i and 335i built after 07/2013 use the 4-inch version
• All M235i and 435i models use the 4-inch version

If you are unsure on PWG versus EWG or pipe size, email the last 7 digits of your VIN and we will confirm the correct application before you order.

Ceramic coating option

Professional Cerakote high-temperature ceramic coating available, rated to 1800°F. The thermal barrier helps retain heat within the exhaust stream, aiding engine bay temperatures and thermal management. Downpipes carry a lifetime warranty, ceramic coating and catted versions carry a 1 year warranty.

Fitting and support

Installation available at MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk and our team will take care of you from booking to handover.

Important notes

• De-cat race parts are intended for off-road or motorsport use where permitted
• High-flow 200 cell catted alternative available if you prefer a sports catalyst solution

Unlock the potential of your BMW M135i or 335i with this VRSF 3.5-inch catless front pipe. For stronger spool, a sharper exhaust tone and proven reliability on N55 PWG pre-07/2013 models, this is the performance exhaust upgrade to choose.