BMW N63 & N63TU Catless Race Downpipes for 550i, 650i, 750i, Alpina B6 B7, X5, X6 (F Chassis) 318i (G20) The JB4 is an easy

The JB4 is an easy to install plug and play tuner that attaches to sensors in the engine bay and works with your factory ECU tuning to remap boost

Upgrading to relocated N54 inlets shortens airflow distance and removes these bottlenecks — delivering more power and sharper throttle response

Bmw M6 2006 to 2010

Expertly crafted using premium-grade carbon fiber

Custom Precision: Each map is built around your car’s mods

BMW N63 & N63TU Catless Race Downpipes for 550i, 650i, 750i, Alpina B6 B7, X5, X6 (F Chassis) 318i (G20) The JB4 is an easyExperience unparalleled power and performance for your BMW N63 N63tu engine with the Palenon Performance N63 Downpipe. Designed to optimize flow and reduce backpressure, this high performance N63 downpipe enhances spool speed and unlocks an impressive increase of 45 50 horsepower and 40 60 tq. Crafted from mandrel bent SS304 stainless steel, it offers maximum durability, mind blowing exhaust sound, and is backed by a lifetime warranty and satisfaction