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Old 12-16-2009, 12:35 AM   #44 (permalink)
mcrews
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Location: Texas
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The Q Sold - '02 Infiniti Q45 Sport
90 day: 23.08 mpg (US)

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Quote:
Originally Posted by younggun View Post
yeah i didnt expect any FE gain from just the muffler, but what about an entire new exhaust system... like from the headers back.? or is it again with the, if any, "immeasureable" gains if there are any and the definite debate in regards to there being gains at all.
Look, don't piece meal........do the whole thing at one time ....like the guy that owns this caddy....
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