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The HKS Super Turbo muffler for ER34 (4-door) applications is a direct-fit cat-back muffler intended as a replacement that emphasizes a tuned exhaust tone and improved flow for turbo-equipped setups. Matched to ER34 four-door fitment, it offers straightforward installation and a factory-aligned exhaust character for owners seeking a clean upgrade without significant modification to the existing system.
HKS SUPER TURBO MUFFLER ER34(4dr)
