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Old 03-29-2010, 05:43 PM
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Performance Chip

Looking into getting better MPG and ran across rs4 performance chips. 2 of them: $69.99 improves HP +50 Torgue +50 MPG 3-7, $89.99 gas saver chip improves HP 40+ Torque 40+ MPG 7-10 MPG. They also are suppose to improve shifting and a whole bunch of other things. Supposedly 10 minute install.

Any thoughts? Do these work? working on 1999 Sport 4.0L 6 cyl. manual tranny.
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Old 03-29-2010, 05:47 PM   #2
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9 chances out of 10 you wont see near thoes improvements. You might feel a slight increase!

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Old 03-29-2010, 06:16 PM   #3
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Save your money, it's a Jeep. Search this forum.
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
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Old 03-29-2010, 06:55 PM   #4
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I put a stage 1 super chip isaw a little difference not what they said it would be. the biggest dif was prob the throttle response. they do make a stage 2 but you always have to run 93 octain did not want that. my intention was to bring the gas mileage back to were it was before i put the big tires on.
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Old 03-29-2010, 07:13 PM   #5
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I went with the super chip and my miliage with premium has gone up 25%
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