CHOOSE YOUR VEHICLE
MUST-HAVES
GRAIL valved exhaust systems at FLOW DOWN® - ECE approved, no registration entry needed
Looking for a GRAIL exhaust system for your car? At FLOW DOWN® you get the complete GRAIL range of valved exhaust systems - ECE approved, so under German law no registration entry is required. If you like, we fit your system in our own workshop in Essen. No third party, everything from one source.
Which cars are GRAIL systems available for?
GRAIL builds valved exhaust systems for the most relevant tuning models. This is what you will find at FLOW DOWN®:
Systems by model
GRAIL exhaust systems with fitting in Essen - for customers from all over Germany
Fitting in our workshop
FLOW DOWN® is your address for GRAIL exhaust systems throughout Germany. We fit every GRAIL system properly in our own workshop in Essen - no third party. Customers come from Essen, Bochum, Dortmund and the whole Ruhr area, and just as often from Hamburg, Berlin, Frankfurt, Munich or across the border: exhaust fitting is usually done the same day. Book via WhatsApp or by phone on 0176 76043407.
Fair payment with a deposit
You do not have to pay everything at once: when you order with fitting, 50% is due as a deposit and the rest only after the work is done. The deposit is paid by bank transfer in advance. That way you can plan your build calmly and collect the car with the system fitted in Essen.
What is a GRAIL valved exhaust system?
A GRAIL system works with exhaust valves that let you control the volume: quiet and usable every day with the valve closed, distinctly more present with it open. That gives a GRAIL system a wide volume range. Depending on the system, control runs through your car's factory drive modes or through an ECE R-59 valve control module on the CAN bus. Many systems are available in 3 inch or 3.5 inch and, depending on the model, with or without a particulate filter.
ECE approved, no registration entry needed
All GRAIL exhaust systems carry ECE approval. For you that means: road legal and, under German law, usable without a separate registration entry. You drive away legally right after fitting, with no trip to an inspector for the system itself.
Frequently asked questions about GRAIL exhaust systems
Does a GRAIL exhaust need to be registered?
No. Every GRAIL system is ECE approved and therefore road legal without a separate entry. You are legal from the moment it is fitted.
How does the valve control work?
The exhaust valves control the volume - quiet for everyday use, louder at the touch of a button. Depending on the system, control runs through your car's factory setup or through an ECE R-59 valve control on the CAN bus.
Does FLOW DOWN® fit the system as well?
Yes. We fit every GRAIL system in our own workshop in Essen - no third party. Book an appointment via WhatsApp or by phone. The trip is worth it even from further away - customers come to Essen from all over Germany.
Is it worth travelling to FLOW DOWN® from another city?
Yes. Fitting is usually finished the same day: you get a fixed appointment, wait on site while we work and drive home with the system installed. That is why customers come to Essen from all over Germany - from Hamburg to Munich - and from neighbouring countries.
How does payment work when ordering with fitting?
50% deposit when ordering (by bank transfer in advance), the balance only after the work is done. That keeps your build predictable.
Which cars are GRAIL systems available for?
GRAIL builds systems for BMW (M2, M3, M4, 1 to 5 Series, M5), Audi (RS3 and more), VW, Toyota (GR Yaris, GR Supra), Hyundai (i30N, i20N, Kona N) and Kia (Stinger GT, Ceed GT), among others. Use the vehicle filter to find the version that suits your car.
Are the systems available with a particulate filter?
Depending on the model, GRAIL systems come with or without a particulate filter. The right version for your car is stated on each product page.
How loud is a GRAIL system?
Thanks to the valve control a GRAIL system covers a wide volume range - from discreet and usable every day to distinctly present at the touch of a button. The exact character depends on the car and the system.
Buying a GRAIL exhaust system at FLOW DOWN®
Whether it is a GRAIL exhaust suitable for your BMW M3 G80, a valved system suitable for your Audi RS3 or one suitable for your Hyundai i30N - at FLOW DOWN® you get ECE-approved GRAIL systems, quick shipping and, if you want it, professional fitting in our workshop in Essen. As experienced GRAIL specialists we accompany you from choosing the system to the finished installation, whether you live nearby or travel across the country for the appointment. Made for the tuning culture - since 2020.
All brands, model designations and manufacturers named in this shop, such as BMW, Audi, Volkswagen, Toyota, Hyundai and Kia, are used solely to describe the compatibility of our products. FLOW DOWN® is an independent supplier of tuning parts and accessories and is not connected with the respective trademark owners. GRAIL is a trademark of its respective owners; FLOW DOWN® sells and fits their products.