How much for true duals?
He did it with a chop saw and welder out of his garage.
I supplied the parts tho, which after the initial TSP kit, and extra piping was somewhere around $900~1000
Your going to be hard pressed to get a shop to even talk to you about it.
Most look under the car and say "can't be done"
You'll either have to find a shop that has done it before on these cars or someone that wants the challenge.
Another buddy of mine that had a shop do the full kit was charged about $1000, which is what I think you'll be looking at to get the whole shebangs done.
Under the axle looks cool from the back of the car.

