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Adjustable flow control allows you to control the volume of air released when the blow-off valve vents
Compatible with OEM and aftermarket rear sway bars
Springs come pre-installed from Tial so you will want to verify the spring settings before installation
Intercooler piping
Yellow Speed Racing Advanced Pro Plus Racing Circuit Spec Coilovers - 2008-2014 Subaru STI Rear Upper Mount Design:Pillowball (+$40) Adjustable flow control allows youYellow Speed Racing Advanced Pro Plus Racing Circuit Spec Coilovers 2008 2014 Subaru STI Top Tier Motorsport Suspension for Competitive Circuit Racing The Yellow Speed Racing Advanced Pro Plus Racing Circuit Spec is the top of the Yellow Speed coilover lineup a full motorsport grade suspension system developed specifically for competitive circuit racing. Built with input from professional drivers and race engineers, it is available in both 2 way
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