VRSF 3″ High Flow Downpipes
For your BMW 135i, 1M, 335i & 335IS (2007-2010) with the N54 engine
VRSF 3" High Flow Downpipes for the N54 engine of the BMW 135i and 335i. These downpipes offer the best value for money and provide significant performance improvements, with gains of up to 30 hp and 35 Nm of torque when combined with a modified DME mapping. By replacing the restrictive catalysts of the original N54 downpipes, backpressure is drastically reduced, resulting in faster turbo response, more power and a more aggressive exhaust note.
Unlike many competitors, who reduce the diameter of their downpipes as they reach the turbos, VRSF 3" N54 downpipes have a full 3" diameter all the way to the 2.5" flange, resulting in improved flow. These downpipes are handcrafted from 304 stainless steel and come with a lifetime warranty and our "No Hassle" satisfaction guarantee for fit and manufacturing defects. Each kit includes heavy-duty, grade 12-grade nuts, bolts, and washers, as well as two gaskets for the midpipe. VRSF also offers additional installation accessories, such as the turbo to downpipe clamp and gasket, which are sold separately. While not required for installation, they are highly recommended if the original accessories have more than 50,000 miles on the clock.
Features:
- Increases power by 20-25 hp and torque by 25-30 Nm .
- CAD/CAM designed casting nozzle for a seamless transition from flange to pipe.
- Handcrafted from mandrel-bent, tig-welded 3" stainless steel (304 grade).
- Smooth curves to reduce turbulence and increase flow.
- Suitable for right-hand drive and left-hand drive models without modifications.
- Gaskets and high quality mounting hardware (grade 12) included.
- VRSF Lifetime Warranty against manufacturing defects and fit.
Suitable for the following BMW models:
- 2007 – 2010 E90/E91/E92/E93 BMW 335i (N54 engine)
- 2011 – 2013 E92 BMW 335is (N54 engine)
- 2008 – 2010 E82/E88 BMW 135i (N54 engine)
- 2011 – 2012 E82/E88 BMW 1M (N54 engine)
Compatibility and OE Reference Numbers
This downpipe is designed as a direct replacement for original parts and is compatible with OE numbers such as:
- 18307553594 / 18 30 7 553 594
- 18307587609 / 18 30 7 587 609
- 18307553595 / 18 30 7 553 595
- 18307587610 / 18 30 7 587 610
NB: This product is not homologated and may not be used on public roads within the EU. Perfectly suited for motorsports and circuit use.