VRSF Stainless Steel High Flow Catted Downpipe For E8X/E9X BMW 335i/135i (N54)

We are proud to introduce our VRSF 3″ High flow Downpipes for the N54 135i & 335i. These 3″ downpipes are THE best bang for the buck mod available, with gains from 30hp & 35tq when when paired with a DME remap. By replacing the restrictive catalytic converters in the factory N54 downpipes, back pressure is significantly reduced which results in faster spool, an increase in power & a more aggressive exhaust note.

Rather than necking down closer to the turbos like most of our competitors, our 3″ N54 downpipes feature a full 3″ design up to the 2.5″ flange which allows an increase of flow. These downpipes are hand crafted from SS304 stainless steel. Each kit includes heavy duty, grade 12 bolts, nuts and washers along with two mid pipe gaskets. We also offer additional installation accessories such as the turbo to downpipe clamp and gasket available for purchase separately. While the turbo to downpipe clamps and gaskets aren’t required for installation, they are highly recommended if your original accessories have more than 50-60k miles.

Features:
Adds 20-25 HP to the wheels & 25-30 TQ to the wheels.
CAD/CAM designed cast bell mouth for seamless flange to pipe transition.
Hand made from mandrel bent, tig welded 3″ 304 grade stainless steel.
Smooth radius bends to decrease turbulence and increase flow.
Fits RHD and LHD models with no modification necessary.
Gaskets & high quality grade 12 mounting hardware included.

Note: The catted version is limited to LHD fitments.