Wagner Tuning F-series N55 EVO 3 Competition Catted Package

EVO III intercooler and high flow catted downpipe bundle for BMW M135i and M235i N55

Unlock colder charge temps, quicker spool and stronger midrange with this premium cooling and exhaust flow package. Built around Wagner Tuning’s EVO III core and a 300 cpsi sports catalyst, this bundle is a proven upgrade for the 3.0 litre N55 turbo straight six in the BMW F-series. Perfect for fast road and track day use, and a superb foundation for tuned N55 builds. We have fitted this setup for customers at MJ Modifications and the feedback has been outstanding for drivability, consistency and reliability.

Key reasons enthusiasts choose this setup

• Massive uprated front mount intercooler for the F20, F21, F22 and F23 platform
• Lower intake air temperatures and reduced heat soak for repeatable performance
• Less pressure drop than the factory cooler for improved response and airflow
• High flow catted turbo downpipe to cut backpressure and reduce thermal load on the turbocharger
• Direct-fit hardware with reinforced silicone boost hoses and aluminium charge pipe
• Anti corrosion coated components for long service life

Intercooler technical highlights

• Core size stepped: 510 mm x 345 mm x 180 mm, volume 23.56 L
• Frontal area up by 165 percent and volume up by 223 percent vs stock
• Tube and fin high performance core with internal turbulators
• CFD optimised cast alloy end tanks for maximum internal flow
• Inlet 65 mm (2.56 inch), outlet 76 mm (3 inch) with reinforced silicone couplers
• Complete assembly weight approx. 13.8 kg
• Includes adjusted cross member and external air shroud

Sports cat downpipe details

• Material: stainless steel 1.4301 (SS304)
• 300 CPI catalytic converter for high flow while maintaining a catted setup
• Significantly reduced exhaust backpressure, aiding power and torque
• Lower thermal stress on the turbo
• Connection diameter 118 mm
• Replacement for OEM BMW part number 18328602882
• Note: an error display in the DME can be possible

Fitment

• BMW M135i and M135i xDrive F20 F21, from 07/2013
• BMW M235i and M235i xDrive F22 F23
• Engine: N55 3.0 turbo petrol

What is included

• Intercooler in black finish
• 76 mm aluminium charge pipe
• External air shroud
• 2 x HD silicone boost hoses
• Aluminium adapter
• Adjusted cross member
• Full mounting hardware
• Installation instructions

Part numbers

• Intercooler Kit: 200001144
• Downpipe Kit with 300 CPI catalyst: 500001013
• Replaces OEM BMW: 18328602882

Installation and advice

Designed as a direct replacement with minor trimming of the plastic cooler support. The package eliminates the factory click connections for stronger couplings. For a hassle free fit, professional alignment and leak testing, we recommend installation at MJ Modifications in Warwickshire. Request a fitting quote via info@mjmodifications.co.uk.

Who is this ideal for

• Owners seeking a BMW M135i intercooler upgrade or BMW M235i intercooler upgrade
• F20 F21 F22 F23 drivers wanting an FMIC upgrade and N55 turbo downpipe with sports cat
• Tuned N55 cars looking to reduce IATs and improve consistency on spirited road driving or track days

Search-friendly terms to help you find this product

BMW F20 FMIC, F21 FMIC, F22 FMIC, F23 FMIC, N55 catted downpipe, 300 cell cat, 300 CPI sports catalyst, high flow catted down pipe, stainless steel N55 downpipe, M135i charge cooler upgrade, M235i charge cooler, intercooler upgrade kit, silicone boost hoses, 3 inch charge pipe, reduced pressure drop, improved spool, cooler intake temps.

Buy with confidence from MJ Modifications. We use and recommend this setup and our customers consistently report stronger pull, cooler operation and a more responsive N55.