[Bolo]

I just recently ported the exhaust side on my sr. But I didn't port each individual runner, only where the manifold meets the turbo and where the turbo meets the elbow. I ported the openings to match the gaskets and just tried to smooth out everything in there.

Now the turbo spools up much quicker with almost no lag! And there is a very noticable difference in drivability as the power comes on a lot sooner at lower rpm's. I highly recommend porting, especially on turbo cars!