Boost Builder - Chevy 2001-2004 Duramax 6.6L LB7 2003 Featuring BorgWarner SX-E cartridges and

Featuring BorgWarner SX-E cartridges and 2-piece pulse exhaust manifold

this system is backed by our 1 million mile/5 year warranty

Emissions Message: SCT tuning will not modify or delete vehicle emissions

we were able to increase strength while maintaining the factory height

Get more performance out of your electronically controlled engine

Boost Builder - Chevy 2001-2004 Duramax 6.6L LB7 2003 Featuring BorgWarner SX-E cartridges andGet more performance out of your electronically controlled engine by plugging in one of BD's Electronic Boost Builders. Installed in line with the MAP sensor, the Electronic Boost Builder increases available boost by intercepting the message to the ECM, preventing it from setting an over boost trouble code that can cost between 50 80 horsepower. BD's Boost Builders are a perfect match for engines with power module, injector or turbo enhancements. Get