SKU: 50003-MR45HLZ | UPC: 4957266720486
HKS SUPER FIRE RACING MR45HLZ Iridium Spark Plug Nissan Skyline GT-R 1989-2002
The HKS Super Fire Racing MR45HLZ is an iridium spark plug built for the Nissan Skyline GT-R R32 R33 R34 with RB26DETT engines. It supports high-boost and racing setups with consistent spark delivery for better combustion and power across the rev range. This plug installs as a direct OEM replacement to handle demanding track conditions.
Key Features
- 0.7mm Iridium Center Electrode: Delivers focused spark for reliable ignition under extreme cylinder pressures and boost levels
- Platinum Ground Electrode with 45° Taper Cut: Promotes faster flame growth and reduces quenching for complete burn efficiency
- HLZ Heat Range: Resists fouling in tuned RB26DETT engines while preventing pre-ignition in high-rpm racing
- MR Thread Shell: M14 x 1.25 pitch 26.5mm reach matches factory specs for seamless fit in GT-R cylinder heads
- Extended Electrode Life: Iridium alloy construction withstands 50,000+ km in competition use with minimal wear
Product Notes
- Sold as single plug verify quantity needed for full set of 6 cylinders
- Pre-gapped to 0.8mm do not adjust gap for optimal performance
- Box dimensions 3.94 x 0.98 x 0.98 inches compact for easy storage
Installation Notes
- Professional installation recommended.
- Torque to 25 Nm 18 ft-lbs using anti-seize on threads
- Compatible with OEM HKS coil packs and wiring no adapters required
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1989-1994 | Nissan | Skyline | GT-R (BNR32 RB26DETT) |
| 1995-1998 | Nissan | Skyline | GT-R (BCNR33 RB26DETT) |
| 1999-2002 | Nissan | Skyline | GT-R (BNR34 RB26DETT) |
Why Choose HKS?
- Developed for JDM motorsports with real-world GT-R track testing
- Precision manufacturing ensures consistent performance in boosted applications
- Backed by HKS engineering focused on turbocharged inline-six reliability
Frequently Asked Questions
- Q: Will this fit R35 GT-R or other RB engines?
A: Designed specifically for R32 R33 R34 Skyline GT-R RB26DETT other RB variants or VK56 may require different heat range - Q: What materials are used in construction?
A: 0.7mm pure iridium center electrode platinum side electrode nickel-plated shell for corrosion resistance - Q: What is the warranty and service life?
A: HKS offers 1-year limited warranty expect 30,000-50,000 miles in street use longer in stock setups replace sooner under full race conditions
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Original HKS box 3.94 x 0.98 x 0.98 inches protective foam insert
- Weight: 0.11 lbs
Reviews
There are no reviews yet.