Armytrix Stainless Steel Valvetronic Cat Back Exhaust System Turbo Muffler Deletes Our World-famous Wideband O2 air/fuel

Our World-famous Wideband O2 air/fuel ratio UEGO gauge features a digital LED display and sweeping LED 'needle' that changes colors as AFR changes from rich to lean

Center LED Readout Displays Gasoline Values from 10 to 18 :1 AFR

The cooler is a bolt on design for the factory radiator or the CSF High-Performance Radiators (E46 M3 - CSF #7058 / E39 M5 - #7064) and uses the factory oil cooler lines

Economical and long lasting

KQ 4CYL (Suits models with 190mm link - adjustable extra heavy duty)

Armytrix Stainless Steel Valvetronic Cat Back Exhaust System Turbo Muffler Deletes Our World-famous Wideband O2 air/fuelThis is the key for your escape from the mundane daily commute. Unlock the drive you were meant to have; ARMYTRIX is on your side. Built with the strictest manufacturing standards, each system boasts quality fit for a king. Stainless steel provides a sturdy yet light replacement for the OE exhaust, accompanied by a free flowing design offering a massive improvement over exhaust gas movement. Elevating performance and refining audio sensations;