HKS SUPER FIRE RACING M45i HKS HKS50003-M45I
HKS SUPER FIRE RACING M45i HKS HKS50003-M45I
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HKS SUPER FIRE RACING M45i

HKS
HKS50003-M45I
4957266720257
Spark Plugs
12 Units In Stock - Ships Next Business Day
$ 270.00
FREE Ground Shipping!
$ 270.00

SKU: 50003-M45I | UPC: 4957266720257

HKS Super Fire Racing M45i Iridium Spark Plug 1989-2002 GT-R Supra RX7 240SX

HKS Super Fire Racing M45i delivers high-performance iridium spark for racing engines in JDM turbo builds. Direct fit for Toyota Supra 2JZ-GTE Nissan Skyline GT-R RB26DETT Mazda RX7 13B-REW Nissan 240SX SR20DET and similar applications. Sharper ignition focus creates quicker throttle response cleaner combustion and steady power through 9000+ RPM.

Key Features

  • 0.4mm Iridium Center Electrode: Provides precise spark focus for complete combustion and reduced misfires under boost.
  • Racing Ground Electrode Design: Cut-back shape allows larger flame kernel growth for faster burn rates and more torque.
  • Projected Insulator Tip: Resists carbon fouling in high-heat racing conditions keeping spark consistent lap after lap.
  • Heat Range M45i: Matches demanding turbo engines like 2JZ RB26 handling 9000+ RPM without pre-ignition.
  • 14mm Thread 19mm Reach: Direct OEM replacement with resistor for ECU compatibility and EMI suppression.

Product Notes

  • Sold individually gap pre-set at 0.8mm adjust for specific tune.
  • Use anti-seize on threads for easy future removal.
  • Ships in protective foam-lined box dimensions 1in x 1in x 4in.

Installation Notes

  • Professional installation recommended.
  • Torque to 18-22 ft-lbs using thin-wall socket.
  • Compatible with OEM coil packs no adapters needed.

This Part Fits

Year Make Model Submodel
1993-1998 Toyota Supra 2JZ-GTE
1989-1994 Nissan Skyline GT-R R32 RB26DETT
1995-1998 Nissan Skyline GT-R R33 RB26DETT
1999-2002 Nissan Skyline GT-R R34 RB26DETT
1992-2002 Mazda RX-7 FD3S 13B-REW
1989-1998 Nissan 240SX Silvia S13 S14 SR20DET
1999-2002 Nissan Silvia S15 SR20DET
1991-1995 Toyota MR2 Turbo 3S-GTE

Why Choose HKS?

  • Proven in JGTC Super GT and drift racing worldwide.
  • Hand-built in Japan with aerospace-grade materials.
  • Engineered for 100000+ km durability in competition.

Frequently Asked Questions

  • Q: Will this fit my R34 GT-R RB26DETT?
    A: Yes direct replacement for NGK equivalents in 1999-2002 R34 GT-R RB26DETT engines.
  • Q: What material is the electrode?
    A: Pure 99.9% iridium center electrode with platinum alloy pads for extreme heat resistance.
  • Q: What is the warranty and install tip?
    A: 1-year manufacturer defect warranty. Install with OEM torque specs for best seal.

Shipping & Handling

  • Method: UPS Ground or USPS Priority
  • Availability: In stock - ships same or next business day
  • Packaging: Foam-lined retail box 1 x 1 x 4 inches
  • Weight: 0.11 lbs per plug

Request For Information

Have questions about HKS SUPER FIRE RACING M45i? Fill out the form below and we'll get back to you by the next business day.
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