04-08-2012, 06:50 PM
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#13 (permalink)
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A True Z Fanatic
Join Date: Dec 2011
Location: DFW, TX
Age: 67
Posts: 2,321
Drives: '11 BMW Z4
Rep Power: 19
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Quote:
Originally Posted by USMCASA
don't need the ecu reprogrammed. i noticed a huge gain up top along with a much more throaty sound under wot. low end loss was not noticed at all and my miles per tank has gone up about 20-30 mpt. downside is that unless i baby it and don't make it make noise my overall gas mileage has gone down due to the added fun with the increase in power and sound. i love mine.  |
 I would just enjoy them as they are and if you upgrade your cats and exhaust, go the next level with an UpRev tune to be sure you unleash all you can out of your mods.
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