Bilstein B12 1997 Porsche 911 Carrera Front and Rear Complete Suspension Kit 1994-nissan-d21-esi3036058 The factory plastic charge pipes

The factory plastic charge pipes are a known weak link in the intake system and it's not uncommon for them to split at the plastic welds by the turbo or completely burst along the seam

producing a smooth sound

2012-2014 Audi A8 Quattro Base 2000-2010

ISR Solid Differential Mount Bushings - S14/S15 - Gold

The factory bolts often aren't long enough when camber and toe are adjusted using SPC's axle shims

Bilstein B12 1997 Porsche 911 Carrera Front and Rear Complete Suspension Kit 1994-nissan-d21-esi3036058 The factory plastic charge pipesBilstein B12 (Pro Kit) suspension kits include a complete set of Bilstein Performance 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