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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
Brand new valve body
aggressive block design
Standard thickness
Turbo and Engine Life
you will only use one (1) of the included thermostats when replacing your bypass thermostat
2017-2026 Duramax 6.6L 4" Polar Exhaust Exhaust Systems 2011-2016 Powerstroke 6.7L Brand new valve body2017 2026 Duramax 6. 6L 4" Polar Exhaust Polar Diesel exhaust kits are designed to concur the elements, made from T409 Stainless Steel, our kits provide the quality your truck deserves. Our exhaust systems are designed with a hassle free, easy installation in mind! Featuring precise pre bent exhaust hangers, stainless lap joint clamps and precise flanges, you can expect excellent fit & finish. With all of our exhaust systems you can count on reduced