01-04 Duramax LB7 HSP 3.5" Turbo Horn O Ring Seal Suspension Ability to support 600hp

Ability to support 600hp

ABS tire height updates in just few seconds from 22

The Boost Fooler will allow you to utilize your turbochargers full potential without the truck reducing fuel when it gets that extra boost youve been looking for

advance control integrated chip eliminates the occasional error code caused by resistor based devices

01-04 Duramax LB7 HSP 3.5" Turbo Horn O Ring Seal Suspension Ability to support 600hp01 04. 5 Duramax LB7 This is the high flow 3. 5" Turbo horn for LB7 Duramax from HSP Diesel. Adds 15+Horsepower, faster spool up, lower egt's, more Turbo whistle. Stock horn is only 2 3 8", This is 3 1 2" that is a huge increase in airflow! Does not fit CA Smog Package Trucks. Comes ready to install with new bolts and O Ring Seal! Comes powder coated your choice of color. These are made to order. Cannot ship to California