Your welcome Lee, I had a chance to run the GTR II with the Werks 2013 pipe. Worked great has a mean kinda sound, I had a little trouble with fluctuating temps, when running in the main, I gained more power and not enough smoke, so I could tell it was too hot. I had 2 minutes to go so I didn't pit, after I finished I temped it at 275f

I hope I didn't shorten it's life too much

I can't wait to try this engine in my buggy!
Cheers
Brian