OK, here is the skinny.
I have a $150.00 Escort Passport G-Timer (IMHO much better than the $250.00 G-Tech Pro that I had before) and logged the following times:
WITH my "Shop Made" Exhaust, STUSA Chip and K&N Filters...1/8th Mile - 9.330 @ 76.00 MPH
WITH Stock Exhaust, STUSA Chip and K&N Filters...1/8th Mile - 9.720 @ 73.00 MPH
DIFFERENCE...1/8th Mile - .390 @ 3.00 MPH
This is the Exhaust I have For Sale, that is a bit too loud for my ears!!

At the local Drag Strip with their $$$ equipment:
WITH Stock Exhaust, STUSA Chip and K&N Filters...1/8th Mile - 9.845 @ 72.45 MPH

Device error...1/8th Mile - .125 @ .55 MPH

Really not bad for the investment.
Like we used to say in the Military...Close enough for Government Work!!!

Joel said I should have the system in next week. As soon as I do I will install it and do some more numbers.
I have a Palm Corder and am going to try to make a movie (If I can figure out how to upload it).
More to come, Ya'll!!!