Flowmaster 42543 - Flowmaster 40 Series Original Mufflers
Flowmaster 42543 Details
Offset In/Offset Out
Flowmaster 40 Series Original Mufflers
The muffler that started it all: Flowmaster's 40 Series. Made of aluminized or stainless steel, these are the most aggressive sounding street/strip mufflers in the Flowmaster lineup. They also create resonance in the vehicle so, if you want "surround sound" from your exhaust, look no further.
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