I was thinking of these for the rear:
http://www.amazon.com/gp/product/B001AMCBDQ?colid=2674JN9KOHD0O&coliid=I24XCCK117ZMTA&ref_=wl_it_dp_o_pC_S_ttl
But was thinking later down the road installing a catback exhaust system.... wondering if this will be a problem due to clearance issues....