BMW M140i F20/F21 LCI AC Schnitzer AC1 Conversion Kit – 400 hp Upgrade, 19-inch Wheels, Suspension & Exhaust – Drive-In Drive-Out UK

AC1 Package for BMW 1 Series M140i F20 F21 LCI

Looking to wake up your B58-powered hatch without compromise? This complete AC1 package delivers a serious step up in pace, poise and presence with genuine German components, expertly installed. Expect a stronger punch to 400 hp, a tauter chassis, richer soundtrack and a distinctive AC1 look that turns heads on every drive. We have installed this package repeatedly in-house and the feedback on throttle response, ride quality, handling precision, exhaust tone and road stance has been outstanding.

Ideal for owners searching for terms like BMW M140i power pack UK, B58 tuning box upgrade, 19 inch rim and tyre bundle, sports springs and dampers kit, cat back rear box with black tips, OEM plus styling for 1 Series, genuine German aero parts, Warwickshire performance installer, drive in drive out fitting service, Michelin tyre and TPMS package.

What is included

• Power upgrade to 400 hp with matched calibration for smooth drivability
• 3 year engine and drivetrain warranty from new on the power increase
• 19 inch AC1 alloy wheel and tyre set with Michelin tyres, TPMS sensors and locking bolts, supplied and balanced
• Sports suspension set with springs and fixed rate dampers for sharper turn in and improved body control
• Front aero elements and roof spoiler, painted to match your car for a factory quality finish
• Dual sports rear silencer with a choice of chrome or ceramic black tailpipe trims for a deeper, refined tone
• Pedal set and footrest for a premium cockpit feel

Drive in, drive out package price includes professional installation and VAT.

Why this package works

• Instantly noticeable mid range torque and response from the proven B58 hardware
• AC1 19 inch rims fill the arches for a purposeful OEM plus appearance
• Suspension tuning reduces roll and dive while retaining daily comfort
• Rear silencer upgrade adds character without drone, with premium tip options
• All components engineered to work together for balance, reliability and long term enjoyment

Compatibility

• BMW 1 Series F20 F21 LCI, 2014 to 2018
  • M140i and M140ix xDrive

Fitting and booking

MJ Modifications offers full in-house installation in Warwickshire with a true drive in, drive out experience. Drop your car off and we will take care of everything. Collection and return can be arranged for a small additional fee. To request a fitting quote or to book, email info@mjmodifications.co.uk.

Warranty

• 3 year engine and drivetrain warranty from new for the power upgrade
• In principle, all AC Schnitzer products sold in the UK carry a two year manufacturer warranty, or until the end of the 3 year BMW warranty period, whichever is longer

Part number

M140iconv

Search-friendly phrases

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We run this setup on customer cars week in, week out and it consistently delivers the blend of speed, refinement and visual impact our clients want. For a properly sorted M140i with real world pace and confidence, this is the package to choose.