Bilstein B4 OE Replacement-Suspension Strut Assembly (22-239273) 18355 please email for details) **

please email for details) ** we STRONGLY suggest getting your alignment done by a professional with a computer**

We use this data along with the information you provide about your vehicle to write a tune for your specific setup and email back your custom tune in 1-2 business days

POWER GAINS - With Fabspeed Catalytic Converters andSupersport X-Pipe Exhaust

Brain Day was instrumental in really helping CSF engineers understand the 911

Once they are paired

Bilstein B4 OE Replacement-Suspension Strut Assembly (22-239273) 18355 please email for details) **Bilstein B4 OE Replacement dampers are specifically engineered to be the best choice for maintaining the original ride quality of your vehicle, while meeting or exceeding OE standards. These dampers are the ideal choice for the driver looking to restore the original performance and handling of their vehicle, with the added benefit of world famous Bilstein quality. Notes: It's recommended to replace shock or strut in pairs (passenger and driver side at