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The pipes are bead rolled at each end to lock together with the included 5-ply silicone couplers so you don’t have to worry about blow offs under high boost
Spring Rate (R): 258lbs/in
Low compliance heim joint bearings have also been incorporated for that extra advantage
DBA 4000 Series performance slotted rotor design
Billetworkz STI Reverse Lockout - Matte Black Subaru STI 2004-2021 | BW-RL-STI-MTE CivicSI_2022-2024 The pipes are bead rolledProduct Fitment: 2004 2021 Subaru STI Upgrade your Subaru's interior with the STI One Piece Reverse Lockout, a direct OEM replacement designed to enhance both form and function. Engineered for a precise fit, this lockout features dual internal O rings for quiet operation and a stainless steel set screw for secure installationno roll pin required. Features Direct OEM Replacement Replaces both the factory reverse lockout and boot retainer for a seamless