You'll be amazed at the difference this makes Sy. ![happy2 :happy2:](https://www.mk5golfgti.co.uk/forum/Smileys/newsmileys/happy2.gif)
The check valve is the long black connector with two red ends at the bottom of that pic ![Smiley :smiley:](https://www.mk5golfgti.co.uk/forum/Smileys/newsmileys/smiley.gif)
roger that. I wont be fitting it anyway
![Grin :grin:](https://www.mk5golfgti.co.uk/forum/Smileys/newsmileys/grin.gif)
. Hopefully this combined with the APR coolers extra 29% volume will mean a substantial drop in temps from the 50-60 degrees it currently hits on the dyno.
A lot of the TT RS guys are beginning to use these kits now too.
A Porsche Turbo tuned for the kit will make around an extra 100bhp!!!! ![surprised :surprised:](https://www.mk5golfgti.co.uk/forum/Smileys/newsmileys/surprised.gif)
Were not tuning for it though, its only there for when were running on dynos, trackdays, 1/4 mile days and any other time it might be needed ie red hot summers days. Hence the toggle switch.
If i get 10Hp gain ill be happy