[jcslocum]

Originally Posted by thstone

I dyno tested this cat back exhaust and the actual increase is 7hp at the very top end (no additional power in the low or mid-range).

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

There you go, you, you, you... "Debbie Downer" using facts to confuse us all!!! I have my top speed system and it's good for 23HP, It says so on the interwebs :-)