Where is best to buy sr20det redtop engine?

[93'240sx]

I was just wondering where would be best to buy the sr20det redtop engine? Off the internet or from a near by performance shop? Also would I be able to pass the emissions tests.

I hope so because my ka engine needs a new starter and some other things and I would rather just get that kick a$$ engine. Thanks Ivan

[Daunttless]

You should buy from someone reputable. This topic has been discussed a number of times, as has the emissions, please look around the board a little bit. Thank you!