I couldn't do it. After reading something about them intentionally putting non tuned length manifolds on their cars for the distinct purpose of providing a unique exhaust sound at the expense of torque, revs, and known issue with cylinder temps doesn't sit right. Sure companies make mistakes, look at crank changes from 32 onward, but if you know it's shit, do something about it, don't try and tell people it's not shit. I realise you can just bang different manifolds on, but for me there's nothing redeeming about a Subaru that you can't get in an Evo with an arguably stronger engine.