It was 5-10hp gain above 5k takes about 3 tenths off the 1/4 as well. If you get a set of cams and a header to go with it I think you won't want much after that. You can do computer stuff but often times the manufacture does a good job of programing the computer. There are of course ways around this. Superchips and Pots which basically uses a varible resistor on your air temperature sensor. You can also do this to your O2 sensor to get more fuel.

 

Expect to pay $1000-1500+ USD for a decent stand alone system. With complete stand alone engine management, you can program everything without sending the chip in to be changed. You usually just connect a laptop and use software to interact with the ECU and edit the maps, graphs, and so on.

 

Yeah standalones are not cheap and I dunno if I'd really reccomend one for any owner except for the serious racer or enthusiast. They make life a lot better when tuning but unless you plan on taking your 4 cylinder into the 14s n/a or 13s boosted I don't really reccomend it.

 

here's some info on unichip. doesn't look like they've done a new protege yet, but they've got a 90 day money back guarantee:

http://www.thedynoshop.com/chip.html

http://www.theracersgroup.com/theprogram_unichip.html

http://www.dastek.co.za

looks like an adjustable chip they instal in the car, and they keep the adjustment control box, that controls the fuel and timing. everytime you upgrade the car, you take it back to them and they readjust the chip specs, using their control box. the chip itself is about $600 and each dyno tuning is about $550.

looks like a franchise operation.

here's a post from last week on a hyundai board, where a 1.6 litre SAFC tuned engine gained another 17 whp:

http://www.hyundaiperformance.com/fo...ic.php?t=28850

 

Anyone thinking any type of "chip" is going to give good benefits needs to seriously run a series of searches...

All 3rd gen proteges have a very stubborn ECU. The system runs on open loop at partial throttle (uses various sensors to determine fuel requirments and timing), but then switches to closed loop at possibly a certain rpm (some say around 4800 rpm, but this has yet to be determined for sure from what I have heard), but definatly at WOT. In closed loop the ECU rely's on preset maps to determine the above mentioned ****. Most "chips" simply manipulate or intersept the sensors signals to confuse the ECU and free up potential power. This will not work on a protege. The chip will probably function when the engine is simply tugging the car around town at partial throttle positions, in which you wouldn't know it anyway, but once you stomp on the throttle the ECU will override any sensor input and rely on the maps. In turn this makes your investment worthless. Also the chip could adversely affect performance under certain conditions as well.

You have two options...

You need either a programmable piggy-back such as the mentioned Uni-chip or something like a Greddy E-Manage with the ***** to override the stock ECU completely, even at WOT...Or a full stand alone, which completely replaces the stock ECU all together.

 

I'm new to the mazda line but worked a couple years on ford zx2's and Gude has a good name with them, As for Jet stay away from them, bad news only.