87 Grand National with Dual magnaflow's cold start

Cold Startup with magnaflow mufflers took the flowmasters off too much drone Car is for Sale!

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Buick GN duals with Magnaflow.
Custom built by Troys Muffler Shop in Anderson SC.





Grand national Magna flow exhaust
3.5 DP w/3" Exhaust w/Magna flow 3" race muffles.





1987 Grand National for sale





Smokem's Grand National with Flowmaster Super 44's
Flowmaster Super 44's installed to contrast with the Delta 40's




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