has anyone heard anyhting good or bad about this exhaust? im seeing them on ebay for around 300 shipped and its a 2.5 catback for the MP3 but it would fit the MSP to yes? i was thinking of going 2.5 from the turbo back becasue im gonna be using the stock turbo for a while. and i was going to have a DP made or get that apexR1 DP or something.