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A downpipe carries exhaust gas away from the turbocharger outlet and into the rest of the exhaust system. Because it sits right after the turbo, its shape and diameter affect how freely gas can leave the turbine. Owners often fit a downpipe kit when upgrading a turbo, replacing a worn or restrictive factory pipe, or building a freer-flowing exhaust to support other changes.
This page sits under Exhaust › Downpipe Kit. We currently have 1 product in stock here, from BD Diesel: the BD Diesel Turbo Downpipe Kit - S400 4in Aluminized Full Marmon. It is a focused listing rather than a broad lineup, so check the details closely before you order.
Things to check before you buy:
Turbo compatibility: confirm the kit matches the turbo outlet on your setup.
Connection style: make sure the flanges and clamps line up with your existing exhaust.
Pipe size: match the diameter to the rest of your exhaust plan.
Local rules: review the emissions requirements where you drive.
To narrow things down, pick your vehicle to see what fits.
A downpipe carries exhaust gas away from the turbocharger outlet and into the rest of the exhaust system. Because it sits right after the turbo, its shape and diameter affect how freely gas can leave the turbine. Owners often fit a downpipe kit when upgrading a turbo, replacing a worn or restrictive factory pipe, or building a freer-flowing exhaust to support other changes.
This page sits under Exhaust › Downpipe Kit. We currently have 1 product in stock here, from BD Diesel: the BD Diesel Turbo Downpipe Kit - S400 4in Aluminized Full Marmon. It is a focused listing rather than a broad lineup, so check the details closely before you order.
Things to check before you buy:
Turbo compatibility: confirm the kit matches the turbo outlet on your setup.
Connection style: make sure the flanges and clamps line up with your existing exhaust.
Pipe size: match the diameter to the rest of your exhaust plan.
Local rules: review the emissions requirements where you drive.
To narrow things down, pick your vehicle to see what fits.