Corbeau makes some mild/subtle looking seats that you can get in tan. Why not swap in some M3 seats if you like them? Just keep an eye out on ebay and there is also a national used Honda(as well as other manuf) parts dist. If they don't have the part you need you can ask them to look out for it if they get some in and give you a call. But personally I'd go with something like the Corbeau Clubman.