Originally Posted by
stefan
The 2652 is a 3 chamber pipe which was developed for the new EFRA regulations which were supposed to come in effect this year.
Due to the horrible experiences 8th scale racers made last year with these 3 chamber pipes, EFRA postponed the introduction of these pipes indefinitely.
In other words, stay away from it.
The 2652 is a two chamber pipe, have a look at the Nova Site. The 3 chamber pipe is the 3501.