Well worth the money. This set also works to tap your y pipe to put your boost gauge sensor in , so you get more than one use out of it.

Flawless victory. Old rusty manifold, which probably should be replaced, but this kit did what I needed.it to do. As instructed, I threaded a little and checked often and got a good taper seat without bottoming the pyrometer probe fitting. I don't regret this purchase.

This made it so much easier to install my EGT probe. Did not have to run to the hardware store and get a drill bit and a tap. even know you can buy taps by their self I would have got a whole kit.

This made it so much easier to install my EGT probe. Did not have to run to the hardware store and get a drill bit and a tap. even know you can buy taps by their self I would have got a whole kit.

I used the bit and tap on 5 trucks so far and it lasts and works awesome

Its nice not to have to track down just a tap and drill bit to do the job. one stop and done.

Nice to have the correct tools to do the job. The drill bit is of good quality and the tap works well

It works perfectly for the 1/8 NPT fittings required for several gauges.