RB25 | RB26 Single Turbocharger Kit

Upgraded RB25 / RB26 Single Turbocharger Kits

Our RB26 single (full conversion) turbocharger kits have been completely redesigned with new turbocharger options, improved manifold and investment-cast collector designs, revised wastegate recirculation designs, a full 2-pc 3.5" upper downpipe, improved line kit heat shielding, and an updated valve cover heat shield with wastegate pressure line integration.

Shadow Series

The Shadow Series kit is our top-of-the-line turbocharger kit and includes premium features like Glacier Black Cerakote ceramic coated hot parts, a black powder coated compressor housing with additional milling, custom anodized components, and a titanium valve cover heat shield. This kit uses our in-house built stainless manifold with investment cast merge collector(s), v-band or T4 divided turbine flange, and your choice of turbocharger to match your desired powerband.

Spectrum Turbochargers

Our Spectrum built turbochargers now feature improved aerodynamics and reduced blade count for enhanced low boost pressure performance. The SR/59 and SR/61 Turbochargers have been updated for reduced Rotorgroup Intertia and better Response at low-mid boost levels.

The SR/65 and new SR/67 both have a new turbine wheel with a much larger 75mm Inducer for better Efficiency and Lower EMAP at high boost Levels, perfect for those on E85 or Race Gas with an engine package ready for 700+WHP. This new Turbo, paired with our brand new .95 A/R Twin-scroll Turbine, allows for added top end potential without additional lag penalty!

Spectrum Manifolds

Our Spectrum manifolds are built with investment cast collectors assemblies. The updated twin-scroll collector assembly was designed from scratch to maintain the most laminar flow into the turbine volute and wastegate passages. This has been designed to work perfectly with our brand new twin-scroll turbine housing.

All of our in-house RB exhaust manifolds are equal length, delivering an enjoyable exhaust sound and even exhaust pulse delivery. Our single-scroll V-band turbine variant utilizes a long-runner design that results in a powerband that comes on hard around 4000 RPM and pulls past 8k with a good cylinder head. Our twin-scroll design features the shortest-possible equal-length runner configuration, keeping exhaust pulse energy as high as possible into the divided Turbine Inlet.

Our twin-scroll RB manifold utilizes a unique arrangement for both merge collectors, allowing for significantly shorter runner length and lower pre-turbine volume than other equal length manifolds. This results in the best match for mid-frame twin-scroll T4 turbines, with fantastic torque and "area under the curve".

For those targeting 4-digit horsepower numbers, or those with the taller RB30 bottom end, we also have a large runner version of our Twin-scroll manifold. This combination is fully built with Hypertune 347 Stainless components, and has a lower Turbine Flange placement. This is the ultimate combination for those who care about powerband characteristics, and has been proven past 1300whp... all while maintaining the ability to run AC and PS! Please note, this is custom build for each kit, so please email for any inquiries.

G-Series Turbocharger

For anyone interested in using a G-Series turbochager, we suggest using the Artec Performance RB26 Reverse Rotation v-band exhaust manifold. This compact manifold is cast in 347 stainless, and features smaller 33mm ID runners to improve response and overall powerband in a single-scroll configuration. The boost control is also fantastic on this manifold, making it a great choice if you're needing to run low boost pressures. Please note, to ensure the lowest possible volume, this manifold is designed for reverse rotation turbochargers.

Turbocharger Spec Selections

Up to 450WHP - Spectrum SR/55

Up to 550WHP - Garrett G30-770

Up to 550WHP - Spectrum SR/59

Up to 625WHP -  Spectrum SR/61

Up to 750WHP - Garrett G35-900

Up to 750WHP - Spectrum SR/65

Up to 825WHP - Garrett G35-1050

Up to 850WHP - Spectrum SR/67

Full Conversion Single Turbo Kit

Our "Full Conversion" single turbo kit allows you to convert your twin-turbo RB26 to Single Turbo without additional fabrication, and includes:

Top mount exhaust manifold

Dual ball bearing turbocharger custom specified for RB26 (500 to 1000bhp capable)

Stainless investment-cast twin-scroll or V-band turbine housing

Turbosmart wastegate(s)

3.5" stainless 2-piece V-band downpipe

Screamer pipe (with optional Wastegate recirculation)

Oil and water line Installation kit

4" inlet and K&N filter kit

Hot pipe and couplers

Fasteners, clamps, gaskets, heat shielding etc,

While this kit includes everything needed to convert to a single turbo set-up without additional fabrication, professional installation is recommended.

NOTE ~ The PS reservoir will need to be moved from the stock location, however everything else fits R32/33/34 GTR w/ OEM AC and Power Steering Pump***

All of our turbocharger kits are built to order for your exact requirements and specifications.  Our current lead time is 2-4weeks.  

All prices are listed in USD.

Orders are shipped from our shop located in BC, Canada, with the exception of select Garrett turbochargers which may ship direct from our supplier in the US.

International shipments may be subject to customs duties, taxes, and/or tariffs which are based on recipient shipping location and are not included in your total.  Any additional charges relating to this will be the sole responsibility of the recipient and will be payable to the applicable local tax authorities or authorized representative prior to completing delivery.