Originally Posted by
boost monster
There is an improvement but it’s not night and day different. The noise is the biggest change. I had my exhaust valve programmed open but it’s back to auto now.
I did the golf tee mod on my 135 to hold it open but soon put it back to open.
After reading your thread I keep thinking about getting another 135 but I would try the hatch this time on a manual as I had coupe auto before. I like the idea of the mods you have done.