VRSF E89 Z4 sDrive35i / 35is N54 Downpipe | 2010-2016

The VRSF 3-inch race downpipes replace both factory downpipes and their catalytic converters on the N54-powered E89 Z4 sDrive35i and sDrive35is. They feature a cast stainless steel bell mouth at the turbo end and come with gaskets and grade 12 installation hardware.

What It Does

Downpipes are one of the best-value upgrades for the twin-turbo N54. Removing the factory converters cuts back pressure, so the turbos spool faster and the engine pulls harder. VRSF measures 20 to 25 hp and 25 to 30 lb-ft at the wheels with a tune, along with a sharper exhaust note.

Materials and Construction

The CAD/CAM-designed cast bell mouth gives a seamless transition from the turbo flange into the pipe. The pipes stay a full 3 inches up to the 2.5-inch flange instead of necking down near the turbos. They are hand made from mandrel bent 304 stainless steel and TIG welded with smooth radius bends.

Features

• Cast stainless bell mouth at the turbo
• Full 3in design up to the flange
• Mandrel-bent 304 stainless steel
• 20-25 hp and 25-30 lb-ft at the wheels with a tune (VRSF figures)
• Gaskets and grade 12 hardware included
• VRSF lifetime warranty and No Hassle fitment guarantee

What Is Included

• Pair of VRSF N54 Z4 race downpipes
• Gaskets
• Grade 12 installation hardware

Required Parts

• An engine tune is needed to run catless downpipes without fault codes.
• New turbo gaskets and V-band clamps are optional add-ons above.

Specs

• Part number: 10892010
• Brand: VRSF
• Material: 304 stainless steel, cast bell mouth
• Pipe diameter: 3 in
• Type: catless race downpipes
• Shipping dimensions: 28 x 14 x 7 in (71 x 36 x 18 cm)
• Shipping weight: 12 lb (5.4 kg)

Fitment Notes

• Will not fit right-hand-drive cars without modification.
• Not for the four-cylinder Z4 sDrive28i, which uses the VRSF N20 Z4 downpipe.
• Race downpipes remove the catalytic converters and are sold for off-road and competition use only. A tune is needed to run them without fault codes.