just wondering. its probably out there but i cant find it. what all goes into fitting a turbo exhaust on an n/a car. from the downpipe to the y pipe.

 

That all depends on whether you're keeping the stock N/A cast iron manifold or going with an aftermarket one, using a stock turbo system with factory emissions, (why?) or an aftermarket system, and if this is going on an S4 or S5. The main difference will be the downpipe; everything else should go on without any modification.

 

only the catback is interchangable.

 

everything is OE accept for the y pipe. its a racing beat y pipe. so would i have to change out the header as well?

 

racing beat is proprietary lengths, so nothing else will bolt to it aside from racing beat exhaust parts.



turbo headers(aka downpipe) is nothing like a non turbo unit, so no it won't even remotely work.