Sirio 5,6 turbo plugs r simply the best!
I have a few Orion 5, and 6 plugs and I'm telling u hands down my favorite plug in the ninja jx bo1a and my os 25, here's how it all went down. I was racing at rev and everytime I would go out I would pop a p3 over n over all day popped them just repeatedly. After 3 in 1 day I decided I'm putting in the Orion 5 Cody kings dad gave me at arc jbrl (thanks alot pit pop!) and so I put it in expecting it to work horrible. Well after 2 1/2 weeks of driving atleast 4 days a week in my backyard track it still hasn't gotten weak or failed on me. I measured the size of the plugs and they seem pretty close or the same as a p3. So if any of u guys r having issues buying a plug every 2 days I would try these plugs out I garrentee u will be happy with them. I currently use #5 turbo plug and have a 6 to try. Just wanted to let people no that these plugs really r badass an they don't get enough attention.