MBRP 15-16 Chevy/GMC 6.6L Duramax 3in Down Pipe (For 3 Bolt Flange Style Connection) Interior Accessories>Relays Dual Springs expand operating pressure

Dual Springs expand operating pressure range while maintaining a low profile and reduced weight

To provide a leak-free seal

and guaranteed to fit and produce world-class power and low restriction

3L SRT-10 Aluminum Flywheel

Flowbench developed

MBRP 15-16 Chevy/GMC 6.6L Duramax 3in Down Pipe (For 3 Bolt Flange Style Connection) Interior Accessories>Relays Dual Springs expand operating pressureReplace that restrictive factory downpipe with a MBRP direct replacement downpipe for more flow, fuel economy, and better performance. Removal of OEM catalytic converters may be a violation of emissions laws in your jurisdiction. Ensure that the intended use of this product is permitted. Not for sale or use in the state of California.