Bilstein B12 (Pro-Kit)-Suspension Kit (46-189493) 1557 Fabspeed's Sport Catalytic Converter utilizes

Fabspeed's Sport Catalytic Converter utilizes a high-performance 200 cell cat for maximum performance and sound

and 24 valvle spring shims

2003-2008 Nissan 350Z [Z33] Rear Valance - 1035018

Internal grease reservoirs on bushing provide continual self lubrication for optimum friction management

They are feature a thinner blade with a larger surafce area to maximize airflow and turbo spool

Bilstein B12 (Pro-Kit)-Suspension Kit (46-189493) 1557 Fabspeed's Sport Catalytic Converter utilizesBilstein B12 (Pro Kit) suspension kits are a complete set of B8 Performance Plus dampers paired with Eibach (Pro Kit) springs that provide moderate lowering between 24 40mm (depending on application). These kits offer dampers and springs that are tuned for each specific application to provide the best fixed height lowering solution. Bilstein B12 (Pro Kit) suspension kits provide the perfect combination of suspension dynamics, quality and aesthetics.