BMW 1 Series 3 Series 135i

Unlock real N55 gains with cooler charge temps and freer turbo flow

Give your BMW 135i or 335i the hardware it deserves with this proven two-part bundle that delivers big improvements in intake air temperature control and exhaust flow. Ideal for fast road, track days and tuned cars including Stage 1 and Stage 2 software, this package combines an EVO1 front mount charge cooler and a de-cat turbo outlet pipe for a serious step-up in performance and consistency.

Vehicle compatibility

• BMW 1 Series E82, E88 135i with N55 turbo engine
• BMW 3 Series E90, E91, E92, E93 335i and 335xi xDrive with N55

What you get

• EVO1 FMIC kit, Part No. 200001023
• Catless turbo downpipe for N55

EVO1 FMIC highlights, Part No. 200001023

• Stepped bar-and-plate core sized 520 x 210 x 130 mm with an 11,752 cm³ volume
• Approx. 85 percent larger frontal area and around 60 percent more internal volume versus the factory unit
• High-efficiency turbulators and optimised cast end tanks for superior internal airflow and reduced pressure drop
• Durable anti-corrosion coating for excellent heat dissipation and longevity
• Direct bolt-on using factory pipework, no trimming and no bumper removal required
• Supplied in satin black with mounting hardware and installation guide
• Weight around 9 kg

N55 de-cat downpipe benefits

• Manufactured from premium stainless steel 1.4301, also known as SS304
• Straight-through design without a catalytic converter for lower back pressure
• Helps the turbocharger run cooler with less thermal load
• Improved throttle response and stronger mid-range torque potential
• Accurate fitment to replace the restrictive factory section

Why choose this setup

Lower intake temps mean repeatable power run after run, less heat soak on spirited drives and better reliability when mapped. Freeing up the turbo outlet lets the N55 breathe, improving spool and allowing your calibration to make the most of the extra flow. We run this hardware on our own cars and our customers consistently report sharper response and cooler IATs on the road and at the track.

Popular search terms this kit answers

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Installation and support

This is a true plug-and-play FMIC with stock hose connections. The catless turbo pipe is a direct replacement for the original section. For professional fitting and mapping support, we recommend booking with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote.

What is included

• Black-coated FMIC core and brackets
• Mounting hardware
• Printed installation instructions
• Catless N55 downpipe assembly

Important notes

• The de-cat exhaust component is intended for motorsport or off-road use where applicable laws permit. Check local regulations before road use.
• Performance results depend on vehicle condition and calibration.