RVE R350 (K03+) 1.6T Hybrid Turbocharger

Name: RVE R350 (K03+) 1.6T Hybrid Turbocharger
Brand: RVE
SKU: RVE-K03PLUS-16T-G4FJ
Price: 1439 USD
Availability: OutOfStock

$1,439.00USD

Out Of Stock

The RVE K03+ is out of stock. Ordering and preorders are unavailable.

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RVE K03+

A larger-wheel hybrid for the 1.6T G4FJ.

A journal-bearing hybrid turbocharger for the Hyundai Elantra Sport 1.6T G4FJ, with enlarged compressor and turbine wheels in CNC-machined factory housings.

The RVE K03+ combines enlarged compressor and turbine wheels with a K03 journal-bearing center housing. The assembly is oil- and water-cooled. Factory housings are CNC-machined to suit the enlarged wheels while retaining the original turbine-housing mounting layout.

K03+ is RVE’s product designation. It is not an official BorgWarner model designation or a claim that BorgWarner manufactured this assembly. This product is separate from the RVE R450.

Compressor wheel: 50.40 mm inducer / 60.00 mm exducer; billet forged; 5+5 blades; approximate trim 71.
Turbine wheel: 52.00 mm inducer / 46.50 mm exducer; nine blades; Inconel 713C; approximate trim 80.
Center housing: K03 journal-bearing center housing; oil- and water-cooled.
Housings: Factory housings CNC-machined for the enlarged wheels; original turbine-housing mounting layout retained.
Compressor inlet: Standard inlet without anti-surge ports.
OE reference: 28231-2B700 — reference only; not a guarantee of fitment across all vehicles using this number.

Factory versus RVE

Dimensions below are inducer / exducer.

Factory and RVE K03+ wheel specifications
Component	Factory	RVE K03+
Compressor dimensions	41.00 / 51.00 mm	50.40 / 60.00 mm
Compressor blades	6+6	5+5
Turbine dimensions	45.00 / 40.30 mm	52.00 / 46.50 mm
Turbine blades	11	9

Wheel dimensions are specifications, not measured power or airflow results.

Confirmed assembly contents

Hot-side manifold
Cold-side compressor housing
CHRA

This is an assembly, not a CHRA-only listing. Actuator, lines, gaskets, fasteners, other hardware and core requirements have not been confirmed. Do not assume it is a complete installation kit.

Application and fitment

Stated application: Hyundai Elantra Sport 1.6T G4FJ. Exact model years have not been confirmed for this listing; confirm your vehicle and installation requirements with RVE.

Retaining the original turbine-housing mounting layout does not establish that no other changes are required. The OE reference alone does not establish compatibility with other vehicles.

Installation and tuning requirements

Professional installation and vehicle-specific custom ECU tuning are required.
Electronic wastegate recalibration and a progressive boost curve are required.
There are no approved off-the-shelf maps for this configuration.
Prime the center section before initial startup.
Retain the standard journal-bearing oil supply. Do not install an oil restrictor.
Verify fuel-system capacity and upgrade as needed.
Use appropriate intercooling.
Verify exhaust backpressure under load.

Actual power, torque and response depend on the engine, fuel, supporting hardware, calibration and test conditions. Final output and boost limits require vehicle-specific dyno and road validation.

Before planning your installation

Which application is this listing for?

The stated application is the Hyundai Elantra Sport 1.6T G4FJ. Exact model years and installation details must be confirmed with RVE. The OE reference is not a guarantee of fitment on other vehicles.

Is this the RVE R450?

No. The K03+ is a separate journal-bearing hybrid turbocharger. R450 specifications, installation instructions and core terms do not apply to this listing.

What is confirmed in the assembly?

The hot-side manifold, cold-side compressor housing and CHRA are confirmed. Actuator, lines, gaskets, fasteners, other hardware and core requirements remain unconfirmed.

Does it require custom tuning?

Yes. Professional installation, vehicle-specific custom ECU tuning, electronic wastegate recalibration and a progressive boost curve are required. No off-the-shelf map is approved for this configuration.

Should an oil restrictor be installed?

No. Retain the standard journal-bearing oil supply and prime the center section before startup.

Can I order or preorder it?

No. This listing is out of stock and ordering is unavailable.

What output can I expect?

No specific power, torque, boost, spool or airflow result is promised. Final output and boost limits depend on the vehicle and require vehicle-specific dyno and road validation.