Like the other guy said b14 ecu . Contact zero99 on here and fubar102 . Zero99 makes the step down harness adaptor to go from b15 to b14. This is if you don't go with a standalone option . I did the ve swap in fubar102's 01 se and it was a bit of work . You'll also need a b14 maf or n60 as the se rr maf won't work with a b14 ecu . Also need a b14 distributor or a ve o ne . Mirrortints can also help you there as he did the same swap but used a emanage?