SiR R1150 / R1300 Billet Ball Bearing Turbo Upgrade for Nissan R35 GT-R 1150–1300+ Wheel Horsepower – Latest Gen 4 Aero, True Bolt-On

The ultimate stock-manifold turbo upgrade for serious R35 GT-R owners. These SiR R-Series turbos deliver massive power while keeping OEM-like response and daily drivability. Choose between the R1150 (fastest spool) or R1300 (highest peak power).

Key Features & Benefits

• Dual ball-bearing billet CHRA – machined specifically for the Nissan GT-R
• 100% OEM oil & water lines – easiest and cleanest install possible
• Billet 1-bar or 1.4-bar wastegate actuators with dual O-ring seals
• Next-gen high-flow Inconel 718 turbine wheel – low backpressure + excellent response
• Gen 4 Aero Compressor – ultra-high efficiency

Power Tiers (E85, supporting mods, OEM engine)

• R1150 (54mm compressor wheel – 66 lb/min each): Fastest spool, ideal at altitude or mild-built engines → 1,000–1,150+ WHP
• R1300 (58mm compressor wheel – 76 lb/min each): Highest power per psi → 1,100 WHP at 5,000+ ft elevation, 1,300+ WHP peak at sea level / 40 psi

Real-World Performance Dyno-proven on OEM engine with R1300 turbos: strong response and excellent boost control with no boost creep. Great option for a stock engine that allows you to grow up to 1300hp

What’s Included

• Pair of SiR R1150 or R1300 turbos (your choice)
• Billet dual ball-bearing CHRA
• Billet wastegate actuators (1-bar or 1.4-bar)
• All necessary hardware

Important Notes & Requirements

• $1,500 refundable core fee (or send your OEM turbos)
• 2012+ OEM inlet pipes good to ~800 WHP
• 800–1,000 WHP: 60mm+ inlets recommended
• 1,000+ WHP: 3.25" Boost Logic inlet pipes required
• Above 28 psi: 1.4-bar actuators + MAC valve/ECBS recommended
• 2–3 week build/lead time

Built for Gasoline + E85 on the OEM R35 engine with proper supporting mods. Ready to take your GT-R to the next level?