Peter, In an earlier reply to one of my questions in relation to a phase 1 addition you stated that the factory fitted exhaust would cope with the ph 1 kit but to increase kw's even further an aps exhaust should be fitted. Question: 1.Will the phase one increase kw to 300 and if the aps exhaust is fitted what would the kw output be? 2.What is the retail price of the aps exhaust?