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Ok so I've got a quick question. If I have a stock tt Z, I mean, Completely stock, how long can I expect the engine life to be? miles wise I mean. I've already looked through the search results but all I can find is for super modded Z's. Also I've heard if I do a intake, exhaust, and ECU upgrade it will prolong engine life as well as give me a small power boost. Is this true? Oh yeah. One more question. Will the proper ECU inprove MPG? Just another rumor I've heard. Thanks.
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