PPE has designed the most comprehensive Twin Turbo Package on the market! We supply you with everything you need. By designing the turbos to complement each other we can deliver power from low to high rpms throughout the power band. The PPE 45/40 Compound Turbo Package is just the thing for customers who are serious about adding both low end grunt and top end power to their Duramax. The key in building a smooth reliable kit was in getting both turbos to complement each other and work together at all times. Both turbos are made by Garrett and are oil and water cooled (just like the OEM turbo charger) and ball bearing to ensure they provide unparalleled reliability as well as drivability. Each turbo has their own specialties and do their jobs very efficiently. The GT4094R spools up quicker resulting in an excellent low to midrange power, but once the engine hits mid-range and above, the TiAL Wastegate diverts more of the exhaust pressure to the GTX4508R. It is the GTX4508R which supplies the mid to high-end power that will really put your Duramax into overdrive. PPE combines the turbos with a custom 3 inch intake bridge and features a 4 inch crossover tube and Race High Flow Exhaust Manifolds with Up-Pipes. This combination provides the engine with drastically enhanced intake and exhaust actions which create an unrestricted flow for the dual turbo system. Speaking of flow, the PPE High Performance Intercooler cools the compressed air before it is pumped into the engine via the 3 inch aluminum boost tubes. The result is a virtually seamless delivery of power that works especially well with PPEs electronic and fuel upgrades. The PPE compound turbo system does all that and still retains its A/C and heater functionality. This way, you can be comfortable while smoking the competition!
_ Garrett GTX4508R & GT4094R ball bearing-equipped, water and oil cooled turbo
_ Race High Flow Exhaust Manifolds with Up-Pipes
_ TiAL wastegate
_ Ported 3 inch intake bridge/4 inch cold tube
_ PPEs High Flow Performance Intercooler
_ Seamless 3 inch aluminum intercooler tubes
_ Aluminum coolant overflow reservoir
_ Interlocking NO leak exhaust flanges
_ Retains A/C and heater functions
_ Triangulated mounting brackets, improved reliability
Note: Legal in California only for racing vehicles which may never be used on the highway.
This notice pertains to engine and vehicles which are off the public highways except where specifically noted otherwise. Federal law restricts the removal of any part of a federally required emission control system on motor vehicles. Further, many states have enacted laws which prohibit tampering with or modifying any required emission or noise control system. Vehicles which are not operated on public highways are generally exempt from most regulations, as are some special interest and pre-emission vehicles. The reader is strongly urged to check all applicable local and state laws.
Many of the parts described or listed on this website are merchandise for off-highway application only, and are tagged with the Special Parts Notice reproduced here:
SPECIAL PARTS NOTICE:
This part has been specifically designed for Off-Highway application only. Since the installation of this part may either impair your vehicles emission control performance or be uncertified under current Motor Vehicle Safety Standards, it should not be installed in a vehicle used on any street or highway. Additionally, any such application could adversely affect the warranty coverage of such an on-street or highway vehicle.