Adapters are critical to proper exhaust system function and for prolonging hose life. A hook and chain holds the adapter in place during use. At least 1/2″ diameter difference between pipe and adapter is required for proper performance.
For oval/twin tailpipes up to 3″ x 8″. It’s the mid-sized option between the F475 and F675
F475-2 Oval/Twin pipes up to 2.5” x 5.5” Fits 3” and 4” Hose 



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