Perrin Top Feed Fuel Rail Kit WRX (2002-2014) STI (2007) BMW Picture above is for reference

Picture above is for reference only

- Blue Anodized

Replaces OEM air filter with high flow high performance 360 radial air flow filter

5 5x112 38mm Offset with a polished outer rim

Road-tested and fine-tuned by BILSTEIN specifically for your Audi

Perrin Top Feed Fuel Rail Kit WRX (2002-2014) STI (2007) BMW Picture above is for referenceThe PERRIN High Flow Fuel rails for the Subaru WRX and STI are designed to deliver large amounts of fuel equally to each cylinder. Consumers running big horsepower that require large injectors will notice the car runs smoother and is more powerful and tuners can safely push the engine closer to the edge. High Flow & 6 Fittings PERRIN High Flow Fuel Rails incorporate large inside diameter channels for maximum fuel flow. This allows for cars to run 800