2017-2019 Duramax L5P 4" Downpipe Back Exhaust No Muffler (431022)
2017-2019 Duramax L5P 4" Downpipe Back Exhaust No Muffler (431022) - Aluminized is backordered and will ship as soon as it is back in stock.
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2017-2019 Duramax L5P 4" Downpipe Back Exhaust No Muffler (431...
2017-2019 Duramax L5P 4" Downpipe Back Exhaust No Muffler (431022) - Aluminized is backordered and will ship as soon as it is back in stock.
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2017-2019 Duramax L5P 4" Downpipe Back Exhaust No Muffler (431022)
Constructed out of 16 gauge aluminized steel or T409 Stainless, this exhaust system is designed to simplify installation with included clamps, preweld contour bends and improved flanges. Enjoy a noticeable boost in performance, lowered EGTs and amplified air flow with this Mel's system. For powerhouse performance, Mel's delivers - horsepower you can hear!
IMPORTANT NOTE: These kits will only fit models equipped with the OEM style 4-bolt flange off the turbo direct pipe!
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