NGK Racing Iridium IX Spark Plugs For Yamaha YZF R1 1998-2001 – Performance/Custom Fit

Wake up your Yamaha YZF R1 with a fresh set of NGK Racing Iridium IX spark plugs.

Fits the 1998–2001 models.

Iridium means longer life, better throttle response, and a cleaner burn.

These aren’t your grandpa’s copper plugs.

Part brand is NGK, but listing says unbranded — don’t let that fool ya, these are genuine-spec performance plugs.

Custom/performance fitment type.

Brand new, ready to gap and install.

MPN not listed, but they’re correct for the R1.

Crisper starts, smoother idle, more snap.