srforums.net or something like that, there are alot of sentra guys on there, and they are always selling t25 bolt on kits for CHEAP!! my buddy had an old ser, and he bought a little kit, i think he spent $500, he got turbo manifold, t25 (with oil lines), intercooler, all piping, downpipe, and some injectors. he ran 7psi all day with no problems (except the tranny is notorious for not holding any power)