BMW M135i M235i 335i 435i M2 N55 EWG 4.5-Inch Decat Downpipe (Catless) 2013+ | Big-Bore Turbo Downpipe Upgrade, Stage 2 Ready

4.5 inch cat delete down pipe for BMW N55 EWG M135i M235i 335i 435i M2 2013+

Unlock the soundtrack and performance of your N55 turbo with this oversized 4.5 inch free-flow front pipe. Designed specifically for electronic wastegate N55 models, this catless race down pipe significantly lowers exhaust restriction for quicker spool-up, sharper throttle response and a deeper, more engaging exhaust tone. It is a proven upgrade we run on our own builds and our customers love the results.

Why this 4.5 inch catless front pipe is a winner

• Large diameter 4.5 inch outlet for unrestrictive flow and lower exhaust pressure
• Noticeably faster turbo response and improved mid-range pull
• Richer, sportier six-cylinder soundtrack without the factory catalyst in the way
• Built for N55 electronic wastegate fitment for a simple bolt-on installation
• Remap friendly and ideal for Stage 2 style tuning strategies

Compatibility

Suits 2013 onwards BMW models with the N55 EWG engine:

• BMW M135i
• BMW M235i
• BMW 335i
• BMW 435i
• BMW M2 with N55

Fitting and support

Professional installation recommended. For fitting and support at MJ Modifications in Warwickshire, request a quote at info@mjmodifications.co.uk.

Important information

• For motorsport and off-road use only where permitted by local regulations.
• ECU calibration is strongly recommended to maximise performance and manage emissions-related fault codes.

Search terms our customers use

M135i cat delete pipe, M235i catless DP, 335i race down pipe, 435i straight-through down pipe, M2 N55 catless front pipe, N55 EWG down pipe upgrade, 4.5 inch straight pipe N55, BMW N55 electronic wastegate exhaust front pipe, M135i down pipe for tuning, M235i turbo front pipe, BMW 335i N55 cat delete, BMW 435i performance down pipe, BMW M2 N55 race pipe, N55 EWG performance exhaust mod, UK BMW N55 down pipe, Stage 2 remap ready N55 front pipe, M135i track pipe, M235i free-flow down pipe, BMW 335i tuning down pipe UK, 4.5 inch N55 EWG DP.