Home / Rampage Turbo Upgrades Rampage Turbo Upgrades OEM turbo upgrade – RS-450, RS-550, Spec1000, Spec1200 Showing all 3 results Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Rampage RS-550 Turbo Upgrade – FK8 Type-R $2,499.00 Select options Rampage Spec1200 Turbo Kit – R35 GT-R $5,499.00 Select options Rampage Spec1000 Turbo Kit – R35 GT-R $4,999.00 Select options