HKS AF KNOCK AMP 2/3 A/F Sensor - 44999-AK022 fits_2003-2008`Audi`S4 and weather resistant increasing durability

and weather resistant increasing durability and longevity

We now offer a broad range of 90-degree transition couplers applicable for use in both coolant and air passage systems

These headers are constructed of durable CNC mandrel bent brushed 304 stainless steel tubing for maximum performance

We've increased the core volume by 23 percent and expanded the external fin surface area by 44 percent

Take your A90 Supra’s suspension to the next level with the aFe CONTROL Race Edition Front Sway Bar—our stiffest

HKS AF KNOCK AMP 2/3 A/F Sensor - 44999-AK022 fits_2003-2008`Audi`S4 and weather resistant increasing durabilityHKS AF KNOCK AMP 2 3 A F Sensor