Are they any good, what bhp are they good for and what rpm do they spool up at. Plus any other info would be helpfull. It would be going on a 2006 2.5 wrx, was looking for a vf34,35,43 but been offered one of these.

Cheers Stuart.

 

Spool up and power output are very setup dependant.
I have ran a couple of these in the past, mostly on 2 litre cars but one on the 2.5 Murtaya demonstrator which ran a 3.5 second 0-60 at Trax 2 years ago.
Uncategorized - Giles

Ignore the S in the text, it was a mistake by the supplier.