Originally Posted by redneckjoe
going to serpetine usually requires a reverse flow waterpump, if you dont have one already.
This is incorrect. You need a reverse "Rotation" water pump. Reverse flow were for LT1 motors and will burn up your engine.
Don't waste your money on a March system, all you're doing is paying $1500 or more for shiny parts, you don't gain anything from it other than "looking good". If that's worth $1500 to you, then by all means, have at it.
As for Emissions..."GOOGLE" is your best friend. However, I did look it up.
Here is your answer. 750.1 and 750.2 You may not remove your emissions system from your car, it will faill your emissions visiual inspection if not the actual sniffer test. Washington DC Vehicle Emissions Requirements
750.1 When any motor vehicle was originally equipped with an emission control system， that system shall be maintained in good working order, and no person shall disconnect any part of that system, except temporarily in order to make repairs, replacements, or adjustments, and no person shall modify or alter that system in its operation.
750.2 No person shall operate, and no owner shall cause or permit to be operated, any motor vehicle originally equipped with a pollution control system while any part of that system is disconnected or while that system or its operation is modified or altered.
Long story short, you cannot remove any emissions equipment from your car without breaking Federal Law, and by effect, state law. Not saying you don't have an inspector that may overlook certain things, but the official line is "you can't remove emissions equipment from your vehicle."