Antigravity YT12-BS Lithium Battery with Re-Start (AG-AT12BS-RS) YMM_2006_2008_Porsche_Cayman_I_987 The Bilstein B4 OE Replacement

The Bilstein B4 OE Replacement Suspension Strut Assembly is engineered to restore your BMW 550i's original ride quality and handling characteristics

or performance setups where aesthetics matter

The increased core size and improved endtank design eliminate OEM bottlenecks

The installation process typically involves removing the rear trailing arms from the vehicle

Antigravity YT12-BS Lithium Battery with Re-Start (AG-AT12BS-RS) YMM_2006_2008_Porsche_Cayman_I_987 The Bilstein B4 OE ReplacementAntigravity AT12BS RE START Lithium Battery by Antigravity Batteries The Antigravity AT12BS RS is a hi power, lightweight Lithium Ion battery, built with our groundbreaking RESTART Technology (built in jump starting) so you wont ever get stranded with a dead battery again! Directly replaces the OEM Lead Acid YT12 BS and comes in a Heavy Duty version also. Features YT12 BS case size: 5. 9 x 2. 75 x 5. 12 inches (LxWxH) 360 Cranking Amps 12 Amp Hours