RM Motors Downpipe BMW M8 F91 + CATALYTIC CONVERTER HJS 300 cpsi EURO 6 PROM.112126C/L+112126C/P
Upgrade your BMW exhaust flow and performance with the RM Motors Downpipe BMW M8 F91 + CATALYTIC CONVERTER HJS 300 cpsi EURO 6 PROM.112126C/L+112126C/P. Manufactured from premium T304 stainless steel, this downpipe ensures exceptional strength, improved exhaust gas flow and increased efficiency. Designed with precision using CNC technology, it provides maximum reliability and support for both tuned and stock engines.
Key Features & Benefits of RM Motors Downpipe BMW M8 F91 + CATALYTIC CONVERTER HJS 300 cpsi EURO 6
- Enhanced Exhaust Flow for improved throttle response and potential power gains
- T304 Stainless Steel Construction – corrosion-resistant, long-term durability
- Precision CNC Manufacturing – perfect fitment and structural strength
- 24-Month Manufacturer Warranty
Compatible Models & Fitment
- Fitment: BMW M8 F91
- Engine: –
- Category: Downpipe
- Product Code: PROM.112126C/L+112126C/P
Information about RM Motors Downpipe BMW M8 F91 + CATALYTIC CONVERTER HJS 300 cpsi EURO 6
Downpipe BMW M8 F91 + CATALYST HJS 300 cpsi EURO 6
BMW M8 F91 downpipe set includes: 4-part downpipe (2 parts for cylinders 1-4 and 2 for cylinders 5-8).
The downpipe of the BMW M8 F91 has two HJS sport catalytic converters 90603392 with dimensions of 130×85 mm, 300 cpsi EURO 6 standard.
The diameter of the pipe in the downpipe of the BMW M8 F91 has been increased by 6 mm compared to stock. Every part of the BMW M8 F91 downpipe has been made in CNC technology.
The set does not include clamps, we recommend using original clamps mounted on the car.
Downpipe BMW M8 F91 has the following connections:
- two lambda probe sockets
- fastening to a vacuum tube
- probe for attaching the vacuum tube
- hexagonal nut for blanking the vacuum tube
- reinforced fastening for stiffening
Downpipe BMW M8 F91 – OE numbers:
- 18327856827
- 18327856829
- 18328098918
- 18328098919
- 18327856828
- 18327856830
Check also other downpipes from our offer.
Why Choose This Manufacturer Downpipe?
RM Motors downpipes are built for tuning specialists and performance enthusiasts who demand superior materials, reliability and maximum performance potential. The downpipe reduces backpressure, supports higher power output, and enhances turbo efficiency—making it ideal for both stage 1 and stage 2 performance upgrades.















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