Extreme Turbo System
Ships Direct from Manufacturer
You asked for it, so we delivered! We're proud to introduce the first G25-660 turbo kit to the GT-R market. This kit is perfect for a street car looking to make around 1150whp with instant spool and transient response.
The G25-660 is the most advanced small frame turbocharger available on the market. This turbocharger featuring an all new ball bearing CHRA, Ultra High Flow G-Series Compressor Wheel, Evolutionary Aero G-Series Turbine Wheel made from high heat resistance Mar-M Alloy with a 1050 Celsius Rating.
G25-660 - Capable of 1150whp with extremely fast spool.
- Check out our Pro Series Turbo Kits for even more power!
G25-660 Turbocharger Information
- Compressor Wheel
- 54mm Inducer
- 67mm Exducer
- 65 Trim
- 0.70 A/R
- Turbine Wheel
- 54mm Inducer
- 49mm Exducer
- 84 Trim
- 1.9" Runners over our competitors 1.25" Runners.
- Garrett G25-660 Turbochargers.
- Cast Stainless Manifolds
- Complete Turbo Kit
- 2x Cast Manifolds
- 2x Heat Shields
- 2x G25-660 Turbochargers
- 2x TiAL MV-R Wastegates
- 2x 3.0" or 3.5" Downpipes
- 2x 3.0" or 3.5" Inlet Tubes
- 2x Vent To Atmosphere or Recirculated Dump Tubes
- Lower Intercooler Piping
- Oil Lines
- Water Lines
Large runners €“ At 630cc per cylinder, the vr38 is 21% per cylinder larger than most 3.0l 6cyl and 2.0l 4cyl. On a cylinder to cylinder basis. To put a small runner on such a large cylinder is like putting a restrictor plate on the engine.
Heat Shields €“ As the front of the GT-R is Aluminum, an unshielded kit can distort or weaken the front end of the vehicle. Also on the passenger side, the fuel lines must be kept cool for both the obvious fire reasons, but also to avoid tuning issues with a varying fuel density. Also if the fuel is allowed to get too hot, it can cause vapor lock issues at the inlets of very high flow pumps.
Pre-Assembled €“ Because of the very tight fitment of the R35 engine bay, we feel that the alignment of the kit must be perfect. The V-Band connections allow for a multitude of clocking positions, if not clocked perfectly, there could be many in and out attempts for install. This will cost either the shop or the customer excess money. To minimize this confusion, our kits come pre-assembled, with all water and oil lines installed. This will be a major labor savings at time of install.
Equal length runners €“ All cylinders, front to back and side to side have runners of a mean length of 12 €� =/- .300 This allows for precise tuning, crisper throttle response and less individual cylinder trimming. Also to compliment the 12 €� length which will work best 6500-8000 rpm, we use a moderately angled merge collector so there is a powerful scavenging effect to adjacent cylinders at the collector. This creates less back pressure at the exhaust valves and better overall breathing of the engine.
Wastegates in line with flow €“ With the very high flow rates of the new billet wheel turbo's, we have found the wastegate system must be very efficient, or else boost creep could be induced. As well a keeping run away boost under control, a very efficient wastegate system will allow tuners to start a tune at a much lower boost pressure, ensuring that the whole tuning process is done safely.
Factory Intake, IC pipe positions €“ Both the intakes and intercooler pipes terminate in factory positions, allowing the turbo kit to bolt up to your existing stock turbo intakes and Intercooler kits.
Down Pipes to factory locations €“ The High flowing 3 €� v band downpipes terminate at factory location allowing perfect connection to factory or aftermarket Y pipes. Downpipes are also bracketed to help locate the correct clocking outside the car
Critical Lines Away from heat €“ All of the Oil/Water lines are routed away from heat, down and around the turbos, instead of over and across the turbos. This will ensure a lifetime service life for these lines, while also lowering the temperatures of the fluids within the lines.
Support Brackets for Critical Lines €“ All Oil / Water lines are bracketed to prevent vibration or failures. This is extremely important for track vehicles, where high vibration and G forces can cause premature failure of unsupported lines.
Fully ported at every transition €“ From the head flanges to the exhaust flanges and even the PCV barbs in between, we pride ourselves on the best craftsmanship and attention to detail in the industry. This means that all flanges are surfaced, all transitions ported, and all pieces are clean. These details may not make any major power differences, but it can be the difference in numbers such as 998 vs 1002 whp.
Lifetime Warranty €“ Full Lifetime warranty on all fabricated parts, and manufactures warranty on turbo's.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.