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Tunning

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Old Oct 24, 2015, 07:04 AM
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Tunning

I have an 2015 evo X gsr and my question is if I install my Ets open dump downpipe after I get my tune will that mess up my tune?becuase I'm getting my car tune next week but my downpipe ain't coming in till next month so I'm just really wondering if it does or doesn't!

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Old Oct 24, 2015, 07:06 AM
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If your current tune is good then you'll be fine. I got a tune then added my 02 dump a month later. Nothing changed. AFR's are still the same. Only difference is it makes a amazing sound under wot.
Old Oct 24, 2015, 07:08 AM
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Cuz I ask the guy that did my quote for my tune and he told me it would mess up my tune if I install my dump after but I don't see how it would I just wanna be safe about cuz I don't want to re tune it you know? But your saying it shouldn't harm anything then?
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