Inliners International Forums General Discussion Engines Hardened Valve Seat Inserts and unleaded fuel . . .

Cost me about $200 each for the two Peugeot heads I had done. The catalysts sell from about $110 each.

Jason, I said that "If anyone wants to question my judgement on this, be prepared for a long and bitter fight."

I ask that you accept that my word is true and that your quote is the product of misinformation.

I am not a liar, and posting that, I'm afraid, is tantamount to calling me a liar.

I have been involved in these discussions before. What I always find is that people who have had experience with them found them useful, and that everyone who was critical of them had never had anything to do with them!

What I have posted about my own experience is absolute fact. There are no mitigating circumstances, no changes to the car that could have made any difference. And please, nobody suggest that someone is adjusting my valves without me knowing, as has been suggested in the past.

I make no claims about these things other than with regard to valve seat erosion. But with that, they definitely work.