it is clear you don’t know anything about the subject and have very poor comprehension skills

if turbos perform better in lower temps you could put two and two together and come up with a basic conclusion that hotter temps hurt turbos. link goes into detail why and not wasting my time to copy and paste

but back to the subject.

If you are looking for more power from your p400 the TDI tuning box is an option

 

Have you actually read post #68 onwards? The question asked was why turbos perform worse at very cold temperatures, and that was the discussion.

Agreed - you clearly don't know.

No one asked about racing.

Then why are you reading and responding to it?

 

Oh the irony. Now you are projecting, because....

As I said - your link is not about turbo performance at very low temperatures - it's about why turbos perform worse at high temperatures. No one was disputing that.

 

Bought TDI tune last week, showed up in a few days, and I put it on my P400 110X yesterday during a break from the infernal Pac NW rainstorms. Took 15 mins to install (half of which was trying to find my iPhone which I was using as a flashlight, and it felt down in the engine!)

Anyway, started off in "4". It definitely does increase power and torque. Noticed immediately. Drove about 20-25 miles to Washington state, got gas, and increased it to 7. Even a bit more. I notice more "pull" through the rev range.

Just wanted to post a positive review. Will report back after more time behind the wheel.

 

Thanks for posting about this. Keep us updated what you find about the TDI Tune. Thanks.