VRSF B58 4.5" Downpipe Upgrade (2016+ BMW M240i/340i/440i/540i/740i)

VRSF B58 4.5" Downpipe Upgrade (2016+ BMW M240i/340i/440i/540i/740i)We are proud to introduce our VRSF race & high flow catted downpipe for your B58 M240i, 340i, 440i, 540i, 740i & xDrive variants. These downpipes are THE best bang for the buck mod available for your B58 and theyre available in both race & high flow configurations. Back pressure is significantly reduced by eliminating the restrictive catalytic converter in the factory downpipe with our race or high flow 200 cell race cat which results in faster spool,

This increase in exhaust flow allows for the turbos to spool faster

The carbon fiber shrouding prevents this and forces air to travel through the core

This means that we require your old part to be sent back

Externally we’ve updated the packaging to provide exact OEM hose routing for ZERO interference when changing out coil packs or spark plugs

Pre-assembled with dual genuine Walbro 450 pumps

Compact in size

one being on the section of pipe above the flex joint where it secures to the engine block

We are proud to introduce our VRSF Race Downpipes for your 2018+ M5 or M8

the factory downpipes reduces size using short transitions from 4

we will issue a refund within a 2 week period

increasing power and torque throughout the RPM range of your 550i

We used 6061 aluminum (lightweight) mandrel bent piping to ensure smooth transitions