[rp17]

Originally Posted by thstone

Check out this post: http://986forum.com/forums/general-discussions/51783-top-speed-pro-1-catback-exhaust-hp-increase.html

That is a good exhaust. Heard these exhaust first hand and it gets my stamp of approval. Plenty of forum members running this exhaust. I went off the deep end and wanted loud.

These pipes are the 2inch ones compared to the 3inch ones on my car. (not actual specs) Still reading to figure out the significance.