So do i have to buy two kits to change out my old wires is 300 01

You need one kit, there are 3 coils and three wires. Is300 uses wasted spark and coil on plug, so only 3 wires are needed.

Does this kit come as a set of 6 wires?

No..just a set of 3 wires. There's 3 coil packs called C.O.P.'s (coil over plugs). Each coil pack supplies spark to 2 cylinders, thus one spark plug wire per coil pack. Hope this helps!

Mechanic told me to order complete wire set but I only see three wires, also note indicates boots are also requred, can you advise?

If you're also referring to Lexus IS300 then it uses coil packs and ignition control module instead of distributor (models with distributor would have one wire per spark plug) so basically you only need 3 spark plug wires. Three coil packs sit on top of the other three spark plugs and that's where boots go. I did this exact swap last weekend and replaced spark plug wires and coil boots, for IS300 use NGK CPB-T001 Coil On Plug Boot (need 3 of them as each box comes with only one). This kit contains all 3 wires for spark plugs and they are labeled just like OEM wires. If you have the tools, it wasn't hard to get these replaced, I'd say about an hour of work and I'm not a mechanic.

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Ignite Your Drive! ⚙️

DURABLE DESIGN - Corrosion-resistant terminals ensure longevity and reliability.
POWERFUL PERFORMANCE - Experience a spark that ignites your engine's potential.
EFFORTLESS INSTALLATION - Color-coded and numbered wires for a hassle-free setup.
NOISE SUPPRESSION MASTERY - Outstanding EMI/RFI noise suppression for a smoother ride.
EXTREME TEMPERATURE RESILIENCE - Withstands temperatures over 250°C for ultimate durability.

The NGK (6404) RC-TE79 Spark Plug Wire Set is engineered for high performance, featuring ultra-low resistance wires that deliver a powerful spark while effectively suppressing EMI/RFI noise. With easy installation thanks to color-coded and numbered wires, this set is built to last with corrosion-resistant terminals and a high-temperature silicone jacket that withstands extreme conditions.

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Manufacturer	NGK
Brand	NGK
Model	NGK Spark Plug Wire Set
Item model number	RC-TE79
Exterior	Machined
Manufacturer Part Number	RC-TE79
OEM Part Number	19037-20020, 90919-21521
Item Weight	245 g

NGK (6404) RC-TE79 Spark Plug Wire Set

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