SKU: 50003-M45 | UPC: 4957266720226 HKS Super Fire Racing M45 Spark Plugs 1989-2002 Nissan Skyline GT-R RB26DETT, Toyota MR2 SW20 3S-GTE, Mazda RX-7 FD 13B-REW HKS Super Fire Racing M45 spark plugs deliver precise ignition for high-revving JDM engines. These fit Nissan Skyline GT-R R32/R33 RB26DETT, Toyota MR2 SW20 3S-GTE, Mazda RX-7 FD3S 13B-REW, Nissan Silvia S15 SR20DET, and similar turbocharged setups. Engineered for racing, they improve combustion for stronger throttle response and consistent power output under boost. Key Features 0.4mm Pure Iridium Center Electrode: Creates focused spark kernel for full combustion even in lean mixtures and high RPM. Platinum Ground Electrode: Resists erosion for long service life over 40,000 miles in competition use. Semi-Surface Discharge Design: Fires reliably in blow-by conditions from turbocharged or high-boost engines. High-Temp Resistant Insulator: Handles extreme cylinder temps without pre-ignition in tuned motors. M45 Heat Range: Matches demanding applications like RB26DETT and 3S-GTE for optimal thermal control. Product Notes Sold as single plug, order set of 6 for inline-6 or 4 for inline-4 engines. Factory gap 0.7-0.8mm, verify and adjust for custom tunes. Ships in protective foam insert box, 3.5 x 1.5 x 1.5 inches, 0.11 lbs net weight. Installation Notes Professional installation recommended. Torque to 18-21 ft-lbs (25Nm) with anti-seize on threads. Compatible with OEM coils and HKS ignition systems, inspect plug wires. This Part Fits Year Make Model Submodel 1989-1994 Nissan Skyline GT-R R32 RB26DETT 1995-1998 Nissan Skyline GT-R R33 RB26DETT 1999-2002 Nissan Silvia S15 Spec-R SR20DET 1988-1992 Toyota MR2 SW20 3S-GTE Turbo 1992-2002 Mazda RX-7 FD3S 13B-REW Twin Turbo 1994-1998 Nissan Silvia S14 SR20DET 1989-1994 Nissan Silvia S13 SR20DET Why Choose HKS? Motorsport-proven in Super GT and D1GP racing series. Precision manufacturing from forged materials for reliability. Engineered in Japan for JDM engines with decades of tuning expertise. Frequently Asked Questions Q: Will M45 fit R34 Skyline GT-R RB26DETT? A: Best for R32/R33 GT-R, use HKS M40 for R34 due to higher compression and boost levels. Q: What material construction? A: Pure iridium center electrode 0.4mm, platinum ground strap 0.8mm, nickel-plated shell for corrosion resistance. Q: What warranty coverage? A: HKS limited warranty against defects, contact distributor for claims with proof of purchase. Shipping & Handling Method: UPS Ground or USPS Priority Availability: In stock – ships same or next business day Packaging: Compact individual box 3.5×1.5×1.5 inches Weight: 0.11 lbs Reviews There are no reviews yet. Be the first to review “HKS SUPER FIRE RACING M45” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.
