VRSF 3 Cast Stainless Steel Downpipes | E82 · E88 135i · 1M · E90 · E92 · E93 335i | 3.0L Turbo I6 [N54] | RWD Variant:High Flow Catted (Emissions Compliant) You may add a Graf

You may add a Graf brand metal impeller water pump to your Manual Timing Belt Tensioner Kit as a reliable upgrade

increased Air Flow While Maintaining Filtering Efficiency

No headaches sourcing parts or costly "dyno tuning"

Less understeer -116% stiffer than stock

IE calibrators have smoothed the power curve by introducing a new boost control mapping strategy with precision boost request targeting

VRSF 3 Cast Stainless Steel Downpipes | E82 · E88 135i · 1M · E90 · E92 · E93 335i | 3.0L Turbo I6 [N54] | RWD Variant:High Flow Catted (Emissions Compliant) You may add a GrafWe 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