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yes at least a resonator as well as muffler, or 2 mufflers for the real deal....( don't know where you would fit the second one though.). I had my exhaust made of 2.25 pipe for no real reason other than wanting it breath....others may think it unnecessary , my engine is an over bored B18 (ie B20). The OD really helps with noise...but with or without it you will find that air intake as well as exhasut and wind noise all contribute to a noisy ride. I have a later style breather/airbox which helps. Good door seals/window seal, and extra firewall/floor insulation insulation all make the cabin quieter
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Patrick ('68 220, '92 Eurovan, '53 GMC PD4104)
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