VRSF N55 Aluminum Inlet Kit for 335i, 135i, X1 | 2011-2015

The VRSF high-flow inlet replaces the restrictive factory turbo inlet on E-chassis BMWs with the single-turbo N55. It fits the 335i in sedan, coupe and convertible form, the 135i coupe and convertible, and the E84 X1 xDrive35i. It is the most cost-effective way to open up the path from the intake to the turbo.

What It Does

The factory inlet narrows right at the turbo, which limits airflow and adds restriction as boost rises. The VRSF inlet is a one-piece 2.5-inch aluminum tube, and its CNC-machined turbo flange has a larger inside diameter than competing designs. The result is more flow, less restriction ahead of the compressor, and a bit more turbo sound.

Materials and Construction

The inlet is TIG welded from brushed aluminum, with the CNC-machined flange welded to the turbo end. It works with the factory intake or any aftermarket intake, and with any upgraded turbo that uses the factory inlet. It fits left- and right-hand-drive cars and xDrive models.

Features

• One-piece 2.5in aluminum inlet
• CNC-machined turbo flange with a larger bore
• TIG-welded brushed aluminum
• Works with any intake and OEM-style turbos
• Fits LHD, RHD and xDrive cars
• VRSF lifetime warranty and No Hassle fitment guarantee

What Is Included

• VRSF N55 aluminum turbo inlet
• Coupler, clamps and installation hardware

Required Parts

• None. The kit includes everything needed to replace the factory inlet.

Specs

• Part number: 10901055
• Brand: VRSF
• Material: TIG-welded brushed aluminum
• Inlet diameter: 2.5 in
• Type: turbo inlet
• Shipping dimensions: 14 x 6 x 5 in (36 x 15 x 13 cm)
• Shipping weight: 4 lb (1.8 kg)

Fitment Notes

• N55 engines only. N54 cars need the VRSF N54 inlets.
• F-chassis N55 cars (F30 335i, F32 435i, F22 M235i) use VRSF part 10301060.
• See the full VRSF range.