I can only claim 135-140mph. A picture alone is dubious, but acceptable. GPS logs would be rock solid. GPS Don't lie.

That being said, mine still has the stock tune, so I would probably be locked at that 156mph mark anyway.

And yes, it was in fact Steve Hellums that made the ~186mph mark. It was based on his speedometer + his tire height % offset as he was running taller than stock tires. So, he 'kinda' had a higher 5th gear than most of us.

We all know, or should know, that the chassis specifications have been revealed to be stable up to 170mph. Going beyond that without a front splitter and/or lowering of the car might be a bit on the risky side.

Good luck to all... and above all be safe in the attempt!