1990-95 ZR1 full length headers with 2″ primaries and 3″ slip fit collectors with 3″ off road lead pipes to fit Stainless Works 3″ exhaust systems. Dyno proven 30 rwhp gain over stock. Mill finish. Use with Stainless Works exhaust systems (P/N ZR1CHAMSW or ZR1STUBESW)
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