Walker Exhaust 21638 Exhaust Muffler

Buyer fitment guide only intended as reference. Please use catalogue search by vehicle to ensure proper fitment.

• AP Exhaust 40019
• AP Exhaust 78285
• Walker Exhaust 48354
• Ford 8T5Z5230F
• Ford 8T5Z5230A
• Ford AG1Z5230B
• Ford 8T5Z5230C

• BUILT TO LAST -- Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
• DESIGN VALIDATED -- Acoustic and flow tested for quality OE-style sound you can count on
• EASY TO INSTALL -- Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn't require specialized fabrication and/or welding
• PREMIUM ACOUSTIC CONTROL -- OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
• BUY WITH CONFIDENCE -- Comes with Walker's limited lifetime warranty and exclusive 90-Day Safe and Sound© Guarantee. Visit Walkerexhaust.com for details.
• CORROSION RESISTANT STAINLESS STEEL -- The only broad-market muffler with 100 % stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection
• The only broad-market muffler with 100 % stainless-steel construction for longer life, Walker© Quiet-Flow© SS mufflers deliver precision fit, superior flow and OE-style sound. Available for most domestic and import vehicles, Quiet-Flow SS features an internal drainage system that helps reduce moisture collection.