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From what I have been reading up on and seeing the cold-air intake and exhaust helps your vehicle breath better, without cold-air intake, especially with the turbo you are getting cooler air into your manifold, instead of having the air that has been recirculating throughout your engine compartment. And as far as exhaust I have been told turbo back, due to wanting to have the same size piping all the way throughout... hope this helps a little...

Now I have a question also, does anyone have any reputable experience with exhaust companies and which one do you recommend? I know Silverline is good, but it sounds better on a ford than a Chevy.
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