AC Schnitzer Active Sound Module for BMW 4 Series Gran Coupe Diesel (F36) - Diesel Sound Booster / Electronic Exhaust / External Sound Generator / Active Exhaust Sound Kit / Exhaust Sound Enhancer - Fits 420d, 425d, 430d, 435d

Turn your 4 Series Gran Coupe diesel into a head‑turner with a genuine petrol‑style soundtrack. This premium active sound upgrade from AC Schnitzer adds drama, character and presence without touching your fuel economy. At the touch of a button you can switch between 7 authentic engine sound profiles, from subtle to sporty, so your F36 always fits the moment.

We have fitted and run this kit ourselves and customer feedback has been outstanding. The tone is rich and convincing, with a quality finish you would expect from a top German tuner. If you want your diesel 4 Series GC to sound exciting on the road while staying perfectly civil for daily driving, this is the go‑to solution.

• Seven selectable sound profiles, including a factory‑quiet mode for early starts and long trips
• Petrol‑like exhaust note for diesel owners who want excitement without sacrificing mpg
• High quality hardware engineered for the F36 platform
• Button‑controlled for quick changes on the move
• Transforms road presence and driving feel with zero engine performance compromise

Compatibility
Designed for BMW 4 Series Gran Coupe diesel models on the F36 chassis. If you are unsure about fitment for your specific variant, get in touch and we will confirm before purchase.

What this listing includes
This is the sound unit kit only. Performance rear silencer and tailpipes from AC Schnitzer are available separately.

Why enthusiasts choose this upgrade

• Active exhaust sound generator, also searched as diesel sound booster, electronic exhaust, external sound system, exhaust sound enhancer, fake exhaust sound kit, performance sound pack
• Ideal for 420d, 425d, 430d, 435d owners seeking a sportier note on the F36 Gran Coupe
• Refined calibration for realistic petrol‑style tones without cabin drone

Professional installation
We recommend expert fitting for the best result. Book your installation with MJ Modifications in Warwickshire. For a quote and availability, email info@mjmodifications.co.uk.

Good to know
- Switch profiles instantly via the supplied button for city, motorway or spirited drives
- Reversible upgrade that leaves your diesel efficiency intact
- Built to complement the BMW 4 Series GC interior and driving experience

Common search terms: BMW F36 Gran Coupe diesel exhaust sound upgrade, active sound for 4 Series GC, electronic exhaust for BMW diesel, sound booster for BMW F36, AC Schnitzer active sound kit, external exhaust sound generator, diesel exhaust sound system for 4 Series.