Help with isx

My 2010 prostar isx 485 started losing power and making a popping noise under the hood when pulling a little hill or hitting the throttle hard. Oil and temp ok. Cant find the noise maker as it is fine at idle. Any info is appreciated thank you

 

Thank you. I am waiting for him to send me my password as i forgot it

 

Well it is the turbo. Waiting for repair.

 

Yep it is in the shop, head is off and cracked valve is getting replaced. Motor has been enhanced so that is why the turbo is not adj correctly. 2 weeks off and it has rained almost every day