Duramax LBZ Downpipe Upgrade Guide
An upgraded downpipe is one of the best performance upgrades for the Duramax LBZ. It provides power gains, lowers EGTs, improves turbo spool, and improves engine efficiency. Overall, it is one of the best performance and reliability upgrades available to these engines. With experience manufacturing performance downpipes for the LBZ, we’re going to give you…