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For those in colder climates
Reduced turbo lag (where applicable)
limiting this flex and keeping the front suspension geometry more consistent through the corner
Quick disconnect EFI adapter fitting
Flatout Suspension GR40-PRO Coilovers - 2015-2021 Subaru STI PDM_caster-adjustment For those in colder climatesFlat Out Suspension GR40 PRO Coilovers 2015 2021 Subaru STI The Flatout Suspension GR40 PRO represents the top tier of rally proven coilover systems, engineered specifically for professional rally, rallycross, and competitive motorsport applications. Built for drivers who demand uncompromising strength, adjustability, and control, the GR40 PRO provides championship level performance in the most extreme conditions. Unlike entry level kits, it features
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