RM Motors Downpipe BMW F20, F21 135i, 135ix N55 111115
Upgrade your BMW exhaust flow and performance with the RM Motors Downpipe BMW F20, F21 135i, 135ix N55 111115. 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 F20, F21 135i, 135ix N55
- 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 F20, F21
- Engine: 135i, 135ix
- Category: Downpipe
- Product Code: 111115
Information about RM Motors Downpipe BMW F20, F21 135i, 135ix N55
Downpipe has the following connections:
– two lambda sensor bungs
Downpipe fits the original version equipped with a catalyst with the EURO 6 standard. For vehicles equipped with a catalyst with the EURO 5 standard, a downpipe with a turbo flange with a diameter of 105 mm – 111112 is required. Downpipe has been completely made of high quality stainless steel (T304, X5CrNi18-10, 1.4301, AISI 304, 0H18N9). Each element was develop with CNC technology. 24 months manufacturer’s warranty for the product.
OE number:
18328602883
18328602882
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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