Per a gtech pro, I had 165 to the wheels after ecis cai, uuc muffler and shark. Consider I've got a system weighing roughly 80lbs in the trunk and had my buddy in the car (200lbs). 1/4 mile times were 15.8-9
I think the 325 makes the same hp @ 5500 rpm as the 323, so while the 323 tapers off after 5500 rpm, the 325 continues increasing hp for another 500 rpm's. There would be a bigger difference if not for the 325 being heavier. The extra 100 lbs negates much of the hp gain over the 323.
The increased weight is due to more std equipment, so it's a positive & a negative.
323's are anemic at best especially the tippy versions. My girlies barely gets out of it's own way. I find it odd that a german sports sedan can get womped by a Jeep Grand Cherokee.
As far as chip tuning goes you are dreaming if you think you gained that much hp. If the car eats more it poops more. A chip can recalibrate fuel mappings and ignition curves but it simply moves them around for perceived benefit. The real gain comes with improved intake flow, and more fuel to take advantage of the chip mappings. Then of course you have exhaust to get rid of it all...eating and pooping just like in people.
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