AST 11/2007-12/2015 Audi A4 Lowering Springs - 30mm/25mm 2005-pontiac-bonneville-sle-esi7573973 A progressive bump seal design

A progressive bump seal design and polyurethane frame it is also extremely durable and simple to install

Dyno-Proven Gains of +15 HP and +19 Lbs

fitment of the ARB Flat Rack is interchangeable for any application that takes an existing ARB Roof Rack with the same dimensions

Modular design utilizes stock mounting locations with no cutting or modifications required for a hassle-free installation

AST 11/2007-12/2015 Audi A4 Lowering Springs - 30mm/25mm 2005-pontiac-bonneville-sle-esi7573973 A progressive bump seal designThe AST Lowering Springs reduce your cars center of gravity while maintaining the comfort of OEM springs. Designed as a direct OEM replacement, they are vehicle specific and crafted with premium materials on top quality Wafios coiling machines. Their progressive design balances a lowered stance with enhanced performance. With compatibility across over 3,000 models from 1966 upwards, these springs suit a wide range of vehicles. Backed by a lifetime