Description
PLEASE NOTE: Due to materials and supply chain delays we are currently operating on a 8-12 week estimated lead time on these kits.
This is just an estimation. Please be patient with us while we build these as fast as possible.
Turbo Kits are custom built to order and non-refundable
IRP EFR single turbo kits are ready and available to the public featuring only the best components.
Lightning fast response with good power potential.
ZERO boost creep.
EFR 8374
Excellent response and 400whp+ on pump gas.
Capable of approaching and exceeding 500whp at higher boost.
Compressor Specifications
- Compressor Type: Forged-Milled Wheel (FMW) Extended Tip
- Compressor Wheel OD (exducer): 83mm
- Compressor Wheel Inducer: 62.6mm
- Max Flow Rate: 79 lb/min
- Built-in BOV: All EFR compressor housings incorporate an integrated BOV.
- Compressor Housing Connections:
- Inlet: 4″ Ported Shroud Hose Coupler
- Outlet: 2.5″ Hose Coupler w/ integrated Vband option
Turbine Specifications
- Turbine Type: Low Inertia Gamma-Ti Turbine Wheel
- Turbine Wheel OD: 74mm
- Stainless Steel Turbine Housing – uses 3″ vband (92mm OD):
- 1.05 A/R T4 Twin scroll (external WG)- Part # 179393
EFR 8474
Compressor Specifications
-
- Compressor Type: Forged-Milled Wheel (FMW) Extended Tip
- Compressor Wheel OD (exducer): 84mm
- Compressor Wheel Inducer: 68mm
- Max Flow Rate: 95 lb/min
- Built-in BOV: All EFR compressor housings incorporate an integrated compressor recirculation valve
Compressor Housing Connections:
- Inlet: 4″ Ported Shroud Hose Coupler
- Outlet: 2.5″ Hose Coupler w/ integrated Vband option
Turbine Specifications
-
- Turbine Type: Low Inertia Gamma-Ti Turbine Wheel
- Turbine Wheel OD: 74mm
- Stainless Steel Turbine Housing
- Turbine outlet: GT V-Band (aka 3″ V-Band) ~92mm OD for all EFR turbos
The EFR 8474 is available in (2) different turbine housing configurations
- 1.05 A/R T4 Twin Scroll (External WG) #12741019002
- 1.45 A/R T4 Twin Scroll (External WG) #12741008003

EFR 9180
Excellent response and 500whp+ on pump gas.
Capable of approaching and exceeding 600whp at higher boost.
Compressor Specifications
- Compressor Type: Forged-Milled Wheel (FMW) Extended Tip
- Compressor Wheel OD (exducer): 91mm
- Compressor Wheel Inducer: 67.7mm
- Max Flow Rate: 91 lb/min
- Built-in BOV: All EFR compressor housings incorporate an integrated BOV.
- Compressor Housing Connections:
- Inlet: 4″ Ported Shroud Hose Coupler
- Outlet: 2.5″ Hose Coupler w/ integrated Vband option
Turbine Specifications
- Turbine Type: Low Inertia Gamma-Ti Turbine Wheel
- Turbine Wheel OD: 80mm
- Stainless Steel Turbine Housing – uses 3″ Vband (92mm OD):
- 1.05 A/R T4 Twin Scroll (external WG)
- 1.45 A/R T4 Twin Scroll (external WG)
EFR 9280
Compressor Specifications
-
- Compressor Type: Forged-Milled Wheel (FMW) Extended Tip
- Compressor Wheel OD (exducer): 91mm
- Compressor Wheel Inducer: 73.7mm
- Max Flow Rate: 110 lb/min
- Built-in BOV: All EFR compressor housings incorporate an integrated BOV.
Compressor Housing Connections:
- Inlet: 4″ Ported Shroud Hose Coupler
- Outlet: 2.5″ Hose Coupler w/ integrated Vband option
Turbine Specifications
-
- Turbine Type: Low Inertia Gamma-Ti Turbine Wheel
- Turbine Wheel OD: 80mm
- Stainless Steel Turbine Housing
- Turbine outlet: GT V-Band (aka 3″ V-Band) ~92mm OD for all EFR turbos
The EFR 9280 is available in (2) different turbine housing configurations:
- 1.05 A/R T4 Twin Scroll (External WG) #12801019001
- 1.45 A/R T4 Twin Scroll (External WG) #12801008006

Purpose built stainless steel equal-length manifold.
Our manifold is 2″ schedule 10 stainless steel, equal length. This is crucial to maintain even exhaust gas temperatures and controlling boost. Runner length and diameter have been calculated from years of testing and experience. Our manifolds are tuned to the exhaust pulses of the 2 rotor engine.
Stainless steel downpipe
Our downpipe has minimal bends and incorporates a flex section to alleviate stress on the manifold and rest of the exhaust system while ensuring a good fit with the variety of midpipes available on the market.
Oil and coolant lines
DEI heat sleeving is included in every kit for protection and heat management.
Gaskets and hardware
We include Inconel gaskets and locking hardware required for installation of the turbo kit.
Two Turbosmart WG40 Gen V Comp-Gate 40mm – 14 PSI Black Wastegates are included with each kit
Fits a wide range of setups
Most stock mount, front mount, or v-mount intercoolers.
Plenty of room for an idler pulley.
Guaranteed to outperform anything else comparable on the market.
Proudly made in the USA by rotary enthusiasts for rotary enthusiasts.
Please Note: Turbo Kits are custom built to order and non-refundable
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