Mitsubishi 3000GT / GTO / Dodge Stealth Twin Turbo Conversion Parts
Main Components Source
2 Turbos
 
Right Exhaust Manifold
 
Left Exhaust Manifold
 
Front 02 Housing
 
Front Precat
 
Rear Precat/O2 Housing
 
Twin Turbo Downpipe (depending on Precats)
 
2 Intercoolers (Right and Left)
 
Ypipe w/gasket (intercooler system)  
All Intercooler Piping
 
Intake T Pipe
 
Intake Pipe to Front Turbo
 
Intake Pipe to Rear Turbo
 
Larger Fuel Injectors (TT 360cc Injectors)
 
Twin Turbo Fuel Pump w/ Fuel Pump Assembly (Walbro 255lph Fuel Pump)
 
Thermostat/Water Housing "waterneck"
 
Stock Blowoff Valve or Aftermarket (turbo XS RFL)
 
RFL BOV Adapter plate  
1 EGR Block off Plate (Get 2 if your using TT Plenum)
 
Testpipe 2.5" diameter, w/ O2 Bung Welded 2-3 inches from one of the sides
 
Twin Turbo Front Motor Mount Bracket
 
Oil and Cooling
TT Oil Cooler
 
Oil Cooler feed and return lines w/ Eye Bolts  
oil filter bracket (Get new or from a newer car)  
Joint for the Rear Turbo Feed Line (MD161392)  
Front and Rear Oil Feed Lines w/ Eye Bolts (Get New)  
Front and Rear Oil Return Lines  
Front and Rear Water Coolant Feed Lines W/ Eye Bolts
 
Electronics
S-AFC  

Boost gauge

 

Air/Fuel ratio gauge

 
Manual Boost Controller or Electronic Boost Controller
 
Optional
Optional Components
6 NGK Copper Sparkplugs (optional)
 
Lower Compression Pistons (optional)
 
TT Plenum (optional)
 
All Heatshields (optional)  
Optional electronics
Knock Sensor (optional)
 
Exhaust Gas Temperature gauge (optional)  
Water Injection (depending on what compression pistons) (optional)
 
Fuel Injector Resistor Pack (Optional)  
Extra Materials
4mm Vacuum Hoses
 
RTV Silicone for Oil Pan
 
Teflon Paste and Teflon Tape
 
Bolts/Nuts for different stuff
 
All of the exhaust components have C-Nuts so I recommend getting them from the dealer so stuff doesn't come lose  
Lines, bolts, and gaskets
The parts below in the table are new parts from Mitsubishi, and they're mainly the oil and coolant lines, and all the bolts and gaskets you need for that and for the exhaust.
Mitsu Part# Description
Quantity
Source
Oil Lines
Front (Right)
MD161898 Tube, T/C Oil Feed, RH
1
 
MF650102 Eyebolt, T/C (feed line)
2
 
MF660063 Gasket, T/C (feed line)
4
 
MD160039 Tube, T/C Oil Return, RH
1
 
MR258477 Gasket, T/C Oil Return Tub
2
 
MF241225 Bolt, T/C (return line from T/C)
2
 
MD193110 Bolt, T/C (return line to pan)
2
 
 
Rear (Left)
MD174793 Tube, T/C Oil Feed, LH
1
 
MD145960 Joint, T/C (feed line)
1
 
MF660063 Gasket, T/C (feed line)
3
 
MF650102 Eyebolt, T/C (feed line)
1
 
MR266015 Tube, T/C Oil Return LH
1
 
MR258477 Gasket, T/C Oil Return, LH
2
 
MF241255 Bolt, T/C (return line from T/C)
2
 
MD193110 Bolt, T/C (return line to pan)
2
 
 
Coolant Lines
Front (Right)
MD194061 Pipe, T/C Water Feed, RH
1
 
MS650013 Eyebolt, Cooling water line
1
 
MF660064 Gasket, Cooling water line
2
 
MD153689 Pipe, T/C Water Return, RH
1
 
MS650013 Eyebolt, Cooling water line
1
 
MF660064 Gasket, Cooling water line
2
 
 
Rear (Left)
MD158758 Pipe, T/C Water Feed, LH
1
 
MD158989 Eyebolt, Cooling water line
1
 
MF660064 Gasket, Cooling water line
2
 
MD153691 Pipe, T/C Water return, LH
1
 
MS650013 Eyebolt, Cooling water line
1
 
MF660064 Gasket, Cooling water line
2
 
 
Miscellaneous
MD319539 Gasket, thermostat case
2
 
MD165017 Gasket, cooling water outlet hose fitting
1
 
MD147332 O-ring, cooling water line
1
 
MD161392 Joint, engine cylinder block
1
 
 
Exhaust Stuff
MD168266 Gasket, T/C exhaust inlet
2
 
MD077551 Seal ring, T/C exhaust inlet
2
 
MD168267 Gasket, T/C exhaust outlet
2
 
MD132930 Nuts
5
 
MD132933 Washer
1
 
 
Other Exhuast
MD165879 Nuts, manifold
14
 
MD168979 Lock washer, manifold
14
 
MD000436 Flat washer, manifold
14
 
MB687002 Exhaust gasket, front pre-cat/DP
1
 
MB687015 Exhaust gasket, rear pre-cat/DP
1
 
MB687002 Exhaust gasket, DP/main cat
1