R vs Non R Exhaust

[GT_Dave]

I have a carbon fiber driveshaft, I am using the heat shields. They are not difficult to install.

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[dblcbra]

Other than noise, does this mod gain anything?

A couple of horsepower maybe? Just curious.

It removes a little bit of weight as well.

I would say the 2.75 straight pipe replacement would be the way to go. I had put the shiftech pipe on my 350 and it doesn't sound like my R at all. It's a very noticeable difference.