Hello jamesbeaumont, ITG does indeed have an excellent reputation but are not known by the masses. In all the flow tests conducted ITG has proved time and time again it’s the best filter. As for you stated 2 – 5 bhp gains this seems about right. The OEM filter is a thick dense medium of paper / cotton which the air struggles to get past. The ITG provides a path of least resistance towards the incoming air while still filtering particles that my harm your engine.
Regards Leo |