Its done no leaks and very surprised.
Car sounds slightly quieter but deeper and not too obtrusive. No rasp.
Only done 2 miles, the ecu needs to learn but initial impressions look good for +5 to 8hp.
Pics 😃 Got to be kidding what an embarrassment with my welder and had to finish somehow. Five cylindrical runs, first one very very good get a job anywhere like it was, the other four well.