I don't think exhaust or intake is going to do much in hp gains. It will sound better though. From what I have read, headers are a waste of money. BMW already did a pretty good job in that department. The ti is a very nimble car. Enjoy it for what it is. For more hp your options are DASC or conversion. __________________ ...steven BMW CCA #146825 1996 BMW 328ti • 2003 MINI Cooper S • 2016 M235i www.bmwcca.org |