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1988-1992 Ford F-250 351 CID
1x Brass Union for Front to Rear Lines A+B
The mandrel-bent 2
Holes must be drilled and tapped to ensure proper seal
Hooker Maximum Flow Muffler 21630HKR heat-shields 1988-1992 Ford F-250 351 CIDOverview The Hooker Maximum Flow muffler actually flows 99% and produces more horsepower and torque than a 2 1 2" open pipe. The Maximum Flow is constructed of an aluminized steel case with stainless steel internal core and uses a high temperature packing material to absorb excessive noise while allowing a mellow powerful sound. As with all absorption type silencers, the Maximum Flow will be most effective for sound control with lower compression (8.
