Home » Banks Power Packages » Banks Big Hoss® Bundle for 01-04 GM 6.6L Duramax LB7 - Dual and Single exhaust O
Let it flow.
Banks Big Hoss Bundle replaces the power-robbing factory airflow inefficiencies—including the intercooler—with free-flowing components that dramatically increase intake airflow and air density and expel exhaust with virtually no backpressure.
Colossal power with staying power.
Banks balances the improved airflow with advanced CleanTuneTM Technology that nearly doubles the HP and adds up to 84% more torque than stock without adding black smoke. This is tire-shredding, scenery-blurring constant-duty power that keeps its cool while blasting you from 0-60 mph 33% quicker and nearly 200 feet before stock!
Engineered. Not thrown together.
Forget mis-matched components. Run away from tuners that can destroy your engine. Everything in the Big Hoss Bundle is engineered to work together to maximize your engine’s power, efficiency and durability. Big Hoss honors your vehicle by safely living within the limits of your engine and drivetrain. Your Duramax will run stronger and live longer!
4” stainless split-dual system more than doubles stock flow & cuts backpressure 98% for more power & lower EGTs; rich, throaty sound; huge polished tips; safely clears spare tire.
Or choose the single exhaust...
Flowbench developed, dyno proven cold-air intake with enclosed housing improves flow up to 57%; increases power and fuel economy; reduces exhaust gas temps and sooty, black smoke.
Maximum airflow and ultimate power. Watch and learn the importance of airflow, how to increase your power output safely, why you need to upgrade your intercooler, cold air intake, exhaust... (this is a Duramax LMM, other trucks may vary).