Wrx Sti Turbo Upgrade 2025. Product page for cobb 20g turbo upgrade kit for all subaru wrx sti. When you upgrade the cooling system on a fa20dit wrx you can either upgrade the tmic or swap the tmic out for an fmic.
When you upgrade the cooling system on a fa20dit wrx you can either upgrade the tmic or swap the tmic out for an fmic. From carbon fiber body kits and spoilers to performance exhausts and interior upgrades, there’s no shortage of ways to make your wrx/sti truly your own.