HKS SUPER FIRE RACING MR45HLZ - Black Ops Auto Works
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HKS SUPER FIRE RACING MR45HLZ

HKS
HKS50003-MR45HLZ
4957266720486
Spark Plugs
20+ Units In Stock - Ships Next Business Day
$ 330.00
FREE Ground Shipping!
$ 330.00

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

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