Nissan Skyline GT-R R34 Engine Parts Catalog

The legendary RB26DETT engine in the R34 GT-R is one of the most tunable powerplants in automotive history. Whether you're building a street warrior, track monster, or all-out drag car, this comprehensive parts catalog covers the essential engine upgrades to unlock your GT-R's true potential.

Turbo Kits

HKS GT3037S Twin Turbo Kit

The gold standard for R34 GT-R turbo upgrades. HKS's GT3037S kit delivers massive power gains while maintaining excellent response and reliability.

Key Features:

• Direct bolt-on installation (minimal fabrication)
• Ball-bearing center sections for rapid spool
• Efficient compressor design (0.82 A/R)
• Proven reliability up to 600 hp
• Includes all gaskets, oil lines, coolant lines

Performance: +150-200 hp over stock (450-480 hp total), +120 lb-ft torque Best For: Street/track hybrids seeking responsive power delivery Requires: Upgraded intercooler, fuel system, ECU tune

Garrett GTX3076R Gen II Twin Turbo Kit

Modern Garrett technology with anti-surge compressor housing and dual ceramic ball-bearing turbos. Excellent top-end power with minimal lag.

Key Features:

• GTX-series aerodynamics (10% more efficient)
• Dual ball-bearing CHRA
• Stainless steel turbine housings
• Rated to 650 hp combined
• Water-cooled center sections

Performance: +180-220 hp (460-500 hp total), +140 lb-ft torque Best For: High-horsepower street builds prioritizing top-end rush Requires: Larger intercooler, injectors, fuel pump, professional tune

Trust/GReddy TD06SL2-25G Twin Turbo Kit

Japanese heritage meets modern efficiency. GReddy's TD06 platform has powered countless JDM builds since the 1990s.

Key Features:

• Proven TD06 turbine wheel design
• 25G compressor (high-flow)
• Internal wastegate setup (simpler installation)
• Excellent mid-range torque delivery
• Compatible with factory exhaust manifolds

Performance: +140-180 hp (420-460 hp total), +110 lb-ft torque Best For: Budget-conscious builders wanting proven reliability Requires: Basic fuel upgrades, ECU tune

Precision Turbo PT6466 CEA Gen 2 (Single Turbo Conversion)

For those seeking ultimate power, a single large-frame turbo eliminates the complexity of twin setups while supporting 800+ hp.

Key Features:

• CEA compressor (ultra-efficient)
• Dual ball-bearing CHRA
• V-band turbine inlet/outlet
• Requires custom manifold fabrication
• Rated to 850 hp

Performance: +300-400 hp potential (580-680 hp streetable), +200+ lb-ft torque Best For: Drag racing, time attack, maximum power builds Requires: Custom exhaust manifold, large intercooler, built engine internals, standalone ECU

BorgWarner EFR 7163 Twin Turbo Kit

Cutting-edge Gamma-Ti turbine wheels and forged milled compressor wheels deliver near-instantaneous response.

Key Features:

• Gamma Titanium Aluminide turbine wheels (lighter, stronger)
• Forged milled compressor wheels
• Dual ball-bearing cartridges
• Integrated recirculation valve
• Industry-leading response times

Performance: +160-200 hp (440-480 hp total), +130 lb-ft torque, minimal lag Best For: Track-focused builds prioritizing throttle response Requires: Premium fuel (E85 capable), advanced engine management

Exhaust Systems

Tomei Expreme Ti Titanium Cat-Back Exhaust

Ultra-lightweight titanium construction sheds 15+ lbs while delivering intoxicating exhaust note and measurable power gains.

Key Features:

• Full titanium construction (muffler, piping, tips)
• 80mm (3.15") main piping
• Straight-through muffler design
• Burnt blue titanium tips
• Jasma certified (street legal in many regions)

Performance: +8-12 hp, +10 lb-ft torque, -15 lbs weight reduction Sound Level: Aggressive (95-100 dB at WOT) Best For: Enthusiasts wanting maximum performance and exotic sound

HKS Hi-Power Cat-Back Exhaust

The industry benchmark for decades. HKS Hi-Power balances performance, sound quality, and street manners.

Key Features:

• Stainless steel construction
• 75mm (2.95") piping
• Dual-chamber muffler (refined note)
• Polished stainless tips
• Direct bolt-on, no modifications

Performance: +6-10 hp, +8 lb-ft torque Sound Level: Moderate (90-95 dB at WOT) Best For: Daily drivers seeking performance without excessive noise

Blitz NUR-SPEC R Exhaust

Japanese craftsmanship with a deep, throaty exhaust note. Titanium muffler canister reduces weight while maintaining durability.

Key Features:

• Stainless piping with titanium muffler
• 76mm (3") main piping
• Oval-shaped muffler (compact fitment)
• Heat-treated blue titanium tip
• Includes all gaskets and hardware

Performance: +7-11 hp, +9 lb-ft torque, -8 lbs weight Sound Level: Aggressive-moderate (92-97 dB at WOT) Best For: Balanced builds wanting quality sound with weight savings

Fujitsubo Legalis R Cat-Back Exhaust

Understated elegance with superb build quality. Fujitsubo's legendary craftsmanship ensures perfect fitment and longevity.

Key Features:

• SUS304 stainless steel construction
• 75mm straight-through piping
• Dual-layer muffler (resonance tuning)
• Conservative tip design
• Lifetime rust-through warranty

Performance: +5-8 hp, +7 lb-ft torque Sound Level: Mild-moderate (88-93 dB at WOT) Best For: Purists prioritizing OEM+ quality and subtle enhancements

APR Downpipes + Midpipe (High-Flow)

Maximum flow upgrade for turbocharged applications. Removes restrictive catalytic converters for substantial power gains.

Key Features:

• 3" stainless steel construction
• Replaces factory downpipes + midpipe
• Optional high-flow 200-cell cats (emissions compliant)
• TIG-welded mandrel bends
• O2 sensor bungs included

Performance: +15-25 hp, +20-30 lb-ft torque (when paired with tune) Sound Level: Moderate increase (adds 5-8 dB) Best For: Track cars or states without strict emissions testing Note: Check local emissions regulations before purchase

Intake Systems

HKS Racing Suction Reloaded Intake Kit

Dual cold air intake setup optimized for RB26DETT twin-turbo configuration. Carbon fiber airboxes and premium filtration.

Key Features:

• Carbon fiber airbox enclosures (heat shielding)
• Dual HKS Super Power Flow filters
• Smooth aluminum piping (mandrel bent)
• Direct bolt-on installation
• Includes all clamps and brackets

Performance: +8-15 hp, improved throttle response, enhanced induction sound Filter Maintenance: Cleanable/reusable (oil-based) Best For: Enthusiasts wanting maximum airflow with heat protection

AEM Cold Air Intake System

Proven American engineering with lifetime warranty. Dyno-tested gains and CARB-legal certification in many states.

Key Features:

• Polished aluminum tubing
• Dryflow synthetic air filter (no oil required)
• Heat shield included
• CARB EO number (legal in California)
• Lifetime warranty

Performance: +6-12 hp, +8 lb-ft torque Filter Maintenance: Dry filter (vacuum/blow clean) Best For: Emissions-compliant states, hassle-free maintenance

Blitz SUS Power LM Intake

Japanese quality with stainless steel construction for ultimate durability and heat resistance.

Key Features:

• Polished SUS304 stainless piping
• Large 100mm intake inlet
• Mushroom-style high-flow filter
• Heat-resistant materials
• Laser-etched Blitz logo

Performance: +7-13 hp, enhanced turbo spool Filter Maintenance: Foam filter (washable) Best For: Show builds prioritizing aesthetics and quality

GruppeM RAM Air Intake System

Carbon fiber construction with proprietary filter technology. Premium pricing justified by measurable gains and exotic materials.

Key Features:

• Full carbon fiber construction
• Dual chamber design (reduces turbulence)
• Proprietary GruppeM filter media
• Heat shield integrated into design
• Featherlight construction (-3 lbs vs stock)

Performance: +10-18 hp, +12 lb-ft torque (dyno-verified) Filter Maintenance: Cleanable/reusable Best For: High-end builds where cost is secondary to performance

Nismo Sports Air Filter

OEM+ upgrade from Nissan's motorsports division. Direct replacement for factory airbox - no piping changes required.

Key Features:

• Direct replacement for stock filter
• High-flow synthetic media
• Washable/reusable
• Maintains factory intake routing
• Retains factory MAF sensor compatibility

Performance: +3-6 hp, improved filter efficiency Filter Maintenance: Washable (detergent + water) Best For: Conservative builders wanting simple, reversible upgrade

ECU Tuning & Engine Management

COBB Tuning Accessport V3

Industry-leading plug-and-play tuning solution with off-the-shelf maps and custom tuning capability.

Key Features:

• Full-color touchscreen display
• Pre-loaded Stage 1/2/3 maps
• Real-time data logging (50+ parameters)
• Custom map support (ProTune)
• Extensive gauge displays

Performance: +20-40 hp (Stage 1), +50-80 hp (Stage 2 with mods) Ease of Use: Beginner-friendly (plug-and-play) Best For: Street enthusiasts wanting reliable OTS (off-the-shelf) tunes

HKS F-CON V Pro 5.0

Legendary Japanese piggyback ECU with deep control over fuel, timing, boost, and more.

Key Features:

• Piggyback design (retains factory ECU)
• Full 3D fuel/timing maps
• Individual cylinder fuel trim
• Boost control (solenoid integrated)
• Supports 8 injector outputs

Performance: +30-60 hp (conservative tune), unlimited with custom tuning Ease of Use: Advanced (requires professional tuning) Best For: Serious tuners wanting granular control

AEM Infinity-8 Stand-Alone ECU

Full standalone engine management with unlimited tuning potential. Industry-standard for high-horsepower builds.

Key Features:

• Fully programmable fuel/timing/boost
• Supports flex-fuel (E85)
• Launch control, traction control, anti-lag
• CAN bus integration
• Wideband O2 controller integrated

Performance: Supports 1,000+ hp builds Ease of Use: Expert-level (requires dyno tuning) Best For: Built engine applications, race cars, maximum power

MoTeC M150 ECU

Motorsport-grade ECU used in professional racing worldwide. Unmatched flexibility and reliability.

Key Features:

• Motorsport-proven reliability
• Advanced traction/launch control algorithms
• Extremely fast processor (200 MHz)
• CAN integration with dash/sensors
• Detailed data logging (500+ Hz)

Performance: Unlimited (used in 1,500+ hp GT-R builds) Ease of Use: Professional-only (complex setup) Best For: Time attack, drag racing, professional builds

Link G4+ ECU

Excellent value stand-alone ECU with modern features and strong community support.

Key Features:

• Fully programmable
• Flex-fuel capable
• Traction control, launch control
• PC-Link tuning software (free)
• Large online tuning community

Performance: Supports 800+ hp builds Ease of Use: Intermediate (DIY-friendly with research) Best For: Budget-conscious builders wanting standalone flexibility

Fuel System Upgrades

Walbro GSS342 Fuel Pump

Industry-standard high-flow fuel pump supporting up to 500 hp on pump gas, 600+ on E85.

Key Features:

• 255 lph flow rate
• Drop-in replacement
• Includes installation kit
• Quiet operation
• Ethanol-compatible

Performance: Supports 500+ hp builds Installation: 2-3 hours (drop-in) Best For: Turbo upgrades requiring more fuel delivery

Injector Dynamics ID1050X Injectors

Premium high-flow injectors with excellent atomization and linear flow characteristics.

Key Features:

• 1,050 cc/min flow rate
• Linear flow response
• Excellent atomization (improved combustion)
• Plug-and-play (uses stock connectors)
• E85 compatible

Performance: Supports 600+ hp (depending on fuel pressure) Installation: 4-6 hours (requires fuel rail removal) Best For: 500+ hp builds requiring larger injectors

Buying Guide

How to Choose the Right Parts

For Street Builds (300-400 hp):

• Turbo: HKS GT3037S, Trust TD06
• Exhaust: HKS Hi-Power, Fujitsubo Legalis R
• Intake: AEM, Nismo Sports Filter
• ECU: COBB Accessport (Stage 1/2)
• Fuel: Walbro 255 lph pump

For Street/Track Hybrids (400-500 hp):

• Turbo: Garrett GTX3076R, BorgWarner EFR 7163
• Exhaust: Tomei Expreme Ti, HKS Hi-Power
• Intake: HKS Racing Suction, GruppeM RAM
• ECU: HKS F-CON V Pro, AEM Infinity
• Fuel: Walbro pump + ID1050X injectors

For Race Cars (500+ hp):

• Turbo: Precision PT6466 (single), Garrett GTX series (twins)
• Exhaust: Custom fabrication (3.5"+ piping)
• Intake: Custom airbox with high-flow filters
• ECU: AEM Infinity, MoTeC M150
• Fuel: Aeromotive A1000 pump, ID2000+ injectors

Installation Difficulty Ratings

DIY-Friendly (Difficulty 1-2):

• Air filters, cat-back exhausts, fuel pumps, Accessport tuning

Advanced DIY (Difficulty 3):

• Cold air intakes, piggyback ECUs, fuel injectors

Professional Recommended (Difficulty 4-5):

• Turbo kits, downpipes, standalone ECUs, built engine work

Cost Breakdown

Budget Build ($3,000-$5,000):

• Trust TD06 turbos: $2,500
• HKS exhaust: $1,200
• AEM intake: $350
• COBB Accessport: $650
• Fuel pump: $250
• Total: ~$4,950

Mid-Range Build ($8,000-$12,000):

• HKS GT3037S turbos: $3,800
• Tomei Expreme Ti exhaust: $2,400
• HKS intake: $850
• HKS F-CON V Pro: $2,200
• Walbro pump + ID1050X: $1,400
• Total: ~$10,650

High-End Build ($15,000-$25,000):

• Garrett GTX3076R turbos: $5,200
• Custom exhaust fabrication: $3,000
• GruppeM intake: $1,200
• AEM Infinity ECU: $2,500
• Full fuel system (pump, injectors, lines, reg): $3,500
• Total: ~$15,400 (before labor and tuning)

Frequently Asked Questions

Q: Do I need to upgrade fuel system with turbo upgrade? A: Yes. Stock fuel system maxes out around 380-400 hp. Any turbo upgrade beyond that requires at minimum a high-flow fuel pump (Walbro 255 lph). For 500+ hp, add larger injectors (1,000+ cc/min).

Q: Will aftermarket exhaust void my warranty? A: R34 GT-Rs are 25+ years old, so factory warranty is long expired. However, if you have an extended warranty or are importing a low-mileage example, check your policy - exhaust modifications may affect coverage.

Q: How much horsepower can the stock RB26DETT handle? A: Stock internals (pistons, rods, head gaskets) safely handle 450-500 hp with proper tuning. Beyond that, consider forged pistons, upgraded rods, and MLS head gasket. Stock block is strong to 600+ hp.

Q: Is E85 worth it for RB26DETT? A: Absolutely. E85 provides 15-20% more power due to higher octane (105+) and cooling properties. Requires flex-fuel compatible ECU, larger injectors, and upgraded fuel pump. Common gains: +50-80 hp over pump gas.

Q: Do I need a tune after installing intake/exhaust? A: Highly recommended. While bolt-on intake/exhaust won't cause damage, a custom tune extracts maximum power and ensures optimal air/fuel ratios. Expect +10-20 hp from tune alone on bolt-on mods.

Q: Best bang-for-buck modification? A: ECU tune on a stock or lightly modified car. COBB Accessport Stage 1 tune yields +20-40 hp for $650. Combined with intake/exhaust, you're looking at +40-60 hp total for under $2,500.

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