copper donut reviews?

[ebockus]

I did a quick google search with no luck. Im looking for someone that has been using these for 5000k. Im routinely changing my oem ones every 3000k. And getting tired of it. So lets hear it. How are they? Please no 2-3000k reviews. thanks guys

 

[WinderFab]

Have close to 7000km on my copper donuts with no issues yet, was going to check them b4 the start of this season but ran out of time and decided to leave them in another year, I did do the block exhaust test and the sled stalls right away which is a good thing,

I will check them this coming summer to see how they are holding up..

When I put the copper donuts on 2 of the oem ones where completely gone, no sign of a donut was ever there lol and the other 2 look like steel wool so for me the copper have been great...

 

[ebockus]

Thanks. Appreciated. How many on the sled now? 10,000? 20,000?

 

[WinderFab]

Just under 20k

 

[guardrail]

I have about 5000 miles on mine. No problems