Double Iridium Premium RX Spark Plugs for Skyline and Fairlady Z Reference part V35, NV35, CPV35, PV35, Z33/HZ33 (6-pack). number LFR5ARX-11P

[Product Features] Our company's Double Iridium Premium RX spark plugs are based on genuine spark plugs, but with upgraded materials at both ends of the center electrode and ground electrode. This significantly reduces electrode wear and ensures stable ignition performance over a long period. In addition, because the electrodes can be made extremely thin, the ignition voltage is lower, resulting in superior ignition performance, improved combustion efficiency, and stable idling. As a result, it delivers benefits such as improved engine response, improved fuel efficiency, and a longer lifespan. [Main compatible models] Skyline (V35 NV35 CPV35 PV35), Fairlady Z (Z33 HZ33). Please refer to the product image page for details. [Reference Part Number] LFR5ARX-11P. Applicable only to vehicles with either of these part numbers installed. *Note: This product is based on the LFR5ARX-11P spark plug, with the electrodes at both ends upgraded to iridium. While the compatibility is the same, it is not manufactured by Denso or NGK. Please check carefully before purchasing. [Deterioration Symptoms] If any of the following symptoms occur, we recommend replacing the part as soon as possible: ① Engine starting problems: If the engine becomes difficult to start. ② Decreased acceleration performance: If acceleration feels sluggish. ③ Worsening fuel efficiency: If you feel that fuel consumption has increased. ④ Unusual noises or vibrations: If there are unusual noises or vibrations coming from the engine. [After-Sales Service] Products come with a 3-month warranty from the date of purchase. If you have any quality issues with the product, please contact us via your order history → "Ask a question about this product". We will reply within 24 hours. ●Product Condition: Brand New, Unused ●Compatible Vehicles: Toyota Skyline V35 NV35 CPV35 PV35, Fairlady Z Z33 HZ33 ●Reference Part Number: LFR5ARX-11P (Only applicable to vehicles with one of the above part numbers.) ●Notes: This product is an imported item, so there may be minor scratches on the surface. Even for the same vehicle model, the compatible product may differ depending on the model, year, and grade. Before purchasing, please be sure to check the product description and confirm your vehicle model and other information. Since no instruction manual is included, if you are not confident in installing it yourself, we recommend having it installed by a professional or mechanic. ●After-Sales Service: The product comes with a 3-month warranty from the date of purchase. If there are any quality issues with the product, please contact us via your order history → "Ask a question about this product". We will reply within 24 hours.