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06-22-2011, 04:38 PM
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#7 |
  
Drives: '14 GT86, '08 Vitz Join Date: Dec 2006
Location: Central Valley, CA
Posts: 9,873
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I changed my spark plugs and noticed no difference in power (still early to tell mpg). My exhaust seems like it got a tad bit louder and has more of a gurgle sound when decelerating (which I like). Aside from that, no difference. lol.
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