Well, at least the numbers didn't go down. I've seen a chip shootout where that happened. In my experience, (and I do this stuff every day for a living) just installing a chip, exhaust or intake alone doesn't produce NEARLY the results you get with the combination. On my own SSR, I started with the exhaust - the effect was (similar to the results in the test above) mainly sonic. But the combination of programmer AND exhaust has transformed the engine into something alot more sports-car like instead of truck-like. The powerband feels almost like a multivalve engine now. I would like to do a dyno run, but I'm having way too much fun just driving right now