if hes going down the 2L route, he wants a 9a bottom end as rather than the abf, as the 9a has a shorter stroke so more power, also if he is wanting to go for forced induction then the 9a can take audi S2 pistons to lower the compresion, theres a guy on club gti who did the 9a swap and got mid 6's 0-60 running on standard k-jet injection. im also going to go down the 2L 16v route , altho il be using an abf, and digifant3 injection system, just need to find the suitable mk3 doner car now. going to swap beam and wishbones aswell wide track