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Old 07-07-2017
Thread Starter
Join Date: Jul 2017
Location: St.Louis, Missouri
Posts: 7

Hey everybody lets say i installed a supercharged 408w If i intalled msd ignition with aftermarjet gauges would it pass inspection?
I ask because if i upgraded my engine to what i want i would no longer have a working obd2 and if u can fail inspection by an engine light wouldnt my truck fail inspection because it doesnt have anything but msd ignition?

(No i do not have that engine)
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Old 07-07-2017
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Join Date: Jan 2014
Location: Vancouver, BC
Posts: 9,586
Missouri will have its own rules so you will need to find them or call and ask where you can get copies of the rules.

When you put a non-stock engine in a vehicle it usually needs to be re-registered because the VIN will no longer match the vehicle, VIN has engine size in it.
Even if you put a Stock 4.0l V6 Ranger engine into a Ranger that had a 3.0l V6 the title needs to be changed, because it is no longer Factory Stock
Depends on the State Laws

It will often also require an inspection by an approved 3rd party shop, they check frame, brakes and pretty much any components for Road Worthiness, i.e. is it safe for vehicle to be on the road with other vehicles
So in essence a Custom car build.

As far as smog requirements that usually has to do with the year of the vehicle or the year of the engine(if it was changed), which ever year is NEWER thats the smog requirement that has to be met.
So if you put a 1969 engine in a 1995 Ranger then it would have to meet 1995 requirements
If a 2005 engine in a 1995 Ranger then it would have to meet 2005 requirements.

In some states you can NOT put in an older engine than the year of the vehicle, so 1995 Ranger could only use a 1995 or later engine of any size, and it is up to you to provide proof of year, not the State

Check Engine Light is the least of the worries when dealing with State Requirements, so CHECK FIRST, they will have all the rules written down
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Old 07-07-2017
Thread Starter
Join Date: Jul 2017
Location: St.Louis, Missouri
Posts: 7
Thanks for the reply i was just wondering out of curiosity because i sometimes see street legal dragsters but i always wonder how they pass emissions and just regular inspection, i have future plans for my truck also so im trying to figure out how to keep it street legal and pass inspection
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