well... I can tell you now that you will end up wasting money on your car if you just pick up a b16, swap it in and boost it. Later on, if not sooner, you will encounter problems boosting a motor that may have 100,xxx+ miles or however many miles whatever I would still just build that bi*** before you boost it then sure get your exhaust or whatever and run low boost till you beef up your internals.. I think maybe 10-15 lbs on a stock LS is straight but then again I donno cuz I know more about turboed DSMs then I do turbo hondas.. just cuz my last car was a GST and I have yet to turbo my coupe.. Lol either way if you have a decent motor in the car already then just ride that bi*** till the wheels fall off and while youre drivin that around gettin from point A to point B makin your money build the motor and do it right. Then once you do have it done and you boost it you will get ALOT more life out of it then if you just boost a swapped motor.