Description
- Achieve maximum performance by indexing spark plug electrode gap towards the intake valve
- Each kit includes 15 washers: five .040″ thick washers, five .050″ thick washers and five .060″ thick washers for precise fitment
- Made in the U.S.A.
Drew –
These spark plug indexing washers are just what I needed for properly gapping my plugs. I’m thrilled with how they’ve already improved my weekend tune-ups.
Vic –
These spark plug indexing washers were an inexpensive and easy way to optimize my engine timing and gain noticeable power. The quality and fit were top notch and their customer service promptly resolved a small order mixup.
Arlo –
The Spark Plug Indexing Washer kit works good for properly gappin my plugs towards the intake valve for better combustion and performance but the order took a while to arrive
Ryan –
These spark plug indexing washers improve performance by indexing the gap, come with 15 washers of different thicknesses for a precise fit, are made in the USA, do exactly what they claim, are easy to install, have great customer service, and deliver great bang for your buck so I’d definitely recommend them to any gearhead or weekend tinkerer looking to get more oomph from their engine.
Joey –
Yo, I grabbed these spark plug indexing washers to try and get a little more pep out of my car. They’re metal rings you put under the plugs to angle the spark towards the intake valve, supposed to give you more power, you know? I was excited to put em on and go for a drive. The kit has 15 washers so you can get the perfect fit, which is dope. Putting them on was easy, just had to gap the new plugs and washers. Fired her up and could feel a difference off the line, my ride has more jump down low now. Not a huge change but for cheap thrills these washers deliver. I’d buy em again for sure. If you want a little extra vroom without spending a lot, grab these washers.
Will –
These spark plug indexing washers were easy to install and made a noticeable improvement in my vehicle’s throttle response and high RPM power. I would recommend them to any DIY mechanic looking to optimize ignition timing for better performance.