Premium Competition Coilovers - Porsche 911 Carrera 4 / Carrera 4S 1997-2005 (996) fits_2009-2012`Porsche`911 Valvetronic Designs Universal Valved Muffler

Valvetronic Designs Universal Valved Muffler Kits come with a 1 year warranty

Whether you're carving through Alpine passes in pursuit of your next mission or slipping undetected through city streets

Direct bolt-on fit to OEM mounting points

Premium T304 Stainless Steel with Vacuum-Operated Valves

FRONT REAR SPRING RATES 8k 6k UPPER MOUNT Rubber OR Pillowball w/ Camber Plates Aluminum w/ Hardened Rubber Bushings STRUT DESIGN Inverted Standard

Premium Competition Coilovers - Porsche 911 Carrera 4 / Carrera 4S 1997-2005 (996) fits_2009-2012`Porsche`911 Valvetronic Designs Universal Valved MufflerFRONT REAR SPRING RATES 12k 20k UPPER MOUNT Pillowball w Camber Plates Aluminum w Hardened Rubber Bushings OR Pillowball Application Notes: Fits 911 (996) Carrera 4 & Carrera 4S model only Fits Coupe, Convertible & Targa models Please choose your preferred Rear Upper Mount when ordering Solid Aluminum is equipped with hardened rubber bushings for noise reduction Premium Competition coilovers are designed and developed for vehicles that participate in