Trying to select the compound turbos for your diesel? Check out our 'Compound Turbo Deals'. This is our Stage 1 Compound Turbo Set which includes a VSRacing Billet journal bearing S366 (66/68/.88T4) and a Billet journal bearing S475 (75/88/1.32 T6), along with a pair (2) of VSR Gen 3 44mm Wastegates and 18psi gate springs.
 
The 44mm wastegate should fit on any 44mm/45mm vband wastegate flange
 
  Great for 750+whp while maintaining good response and maintaining good control of compressor wheel speeds
 
****Wastegates required to be used****
 
S366 Specs:
Comp
Inducer: 66mm
Exducer: 91mm
 
Turbine
Inducer: 76mm
Exducer: 67.5mm
Compressor Inlet: 4.0 Hose
Compressor Outlet: 2.5 Hose
Turbine Housing:  T4 Open, 0.88A/R
Turbine Outlet: 4.21″ Marmon s300
Oil Feed: 1/4″ NPT
Oil Drain: Std T4 Flange
 
S475 Specs:
Comp
inducer: 75mm
exducer: 105mm

Turbine:
Inducer: 96mm 
Exducer: 88mm

1.32AR divided T6

Compressor Outlet : S400 Vband
Turbine Outlet: 5″ Marmon S400 Discharge
Inlet Flange: T6 divided
Oil Feed Port 1/4npt recommenced to 4an
Oil Drain Std T6 drain Flange 12an Recommend
Oil Drain Thread Pitch M8x1.25
 
>>Note, this is for the turbos only. No piping included