Subaru Upper Engine Cleaner?

[pipster11]

1/2 a can into the intake manifold (there is a couple of nipples you can use either side of the throttle body that will do the job, so 1/4 can in each to get a good even distribution)

then start it up and pump some into the intake at any point you can, before the throttle is probably best so it gets even distribution into all the cylinders

[Kinks]

I gotta say I've never noticed any benefit from using upper engine cleaner. Any minor benefit it seems to have is gone after a day or two.

Track day? different story. drives smoother for weeks.

RB's are built for stretching their legs, if you get them carboned up by pootling down to the shops it's time to book some motorsport action.

after the last track day the inside of my exhaust was actually white. got so hot it burned the carbon off all the way to the exhaust tip. nice.

[Al Despo]

The stuff is brilliant, have a box of them at home

[KangaBanga]

The Subaru UEC part SA459 is now made by bars leaks and not threebond. But I can still find the threebond stuff which is a much bigger can at Bursons at roughly the same price $20.

Not sure if its the same stuff but probably similar.