For 2017-2023 L5P 6.6L Chevy Duramax Diesel Downpipe Exhaust 3.5 Inch

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FlasharkSKU: FLES08074
2 reviews

Sale price$230.00 Regular price$305.77

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3.5" DOWNPIPE EXHAUST FOR 2017, 2018, 2019, 2020, 2021, 2022, 2023 L5P 6.6L Chevy DURAMAX DIESEL

This 3.5" turbocharger downpipe will increase exhaust flow, improving performance.  


Brand Name: FLASHARK
Application:  Downpipe Exhaust
Material: Stainless Steel
Surface: Mirror Polish


2017, 2018, 2019, 2020, 2021, 2022, 2023 Chevrolet Silverado & GMC Sierra 2500 & 3500HD 6.6L Duramax pickup trucks. Will not fit Cab & Chassis trucks.

What does a downpipe do?

The downpipe on your turbocharged vehicle is directing the exhaust gases out of the turbine housing into the exhaust system. An aftermarket downpipe will typically be larger in diameter and either use a high-flowing catalytic converter or remove the catalytic converter altogether.

By removing the factory downpipe and replacing it with a high-flowing unit you are allowing the turbo to move gases away from the turbine which creates more power. Since the factory restrictions are now gone you can increase the boost on the vehicle as the factory downpipe is a choking point for performance.

Customer Reviews

Based on 2 reviews
Very Pleased

downpipe fit great. It shipped fast and was received quickly

Thank you for your comment !

Bigworm (Sacramento, US)
Perfect fit

Fit perfect and has held up great for the last couple months quality part!

Hello. Thank you for your comment! We look forward to receiving your feedback pictures!

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