ServiceTech - ABS Speed Sensor - Rear - TT Mk1 TT220FSIFWD The plastic factory airbox is

The plastic factory airbox is good at muffling intake noise and enhancing low rpm/low-speed engine performance but becomes very restrictive when the engine is operating in the higher rpm range – where most performance drivers need it

including the braking plate

this dyno-proven Audi TT Quattro exhaust system refuses to be ignored

- Button-Head Flanged Screws x 8

Using the same laser welding process as the Iridium Power spark plug

ServiceTech - ABS Speed Sensor - Rear - TT Mk1 TT220FSIFWD The plastic factory airbox isA bad wheel speed sensor can cause and ABS or traction control warning light as well as causing some speedometer issues. Diagnose the problem in your Audi TT to see if a wheel speed sensor will fix it. Rear, two per car. Sold individually.