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Old 03-24-2019, 06:54 AM   #1
evoto86
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Tired of UEL Header

Car is tuned if i purchase EL headers how necessary is a Tune ? do you think I will be able to get away with the current tune is it a drastic enough change to re-tune the vehicle ?
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Old 03-24-2019, 07:37 AM   #2
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Yes. Retuning would be a great idea.
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Old 03-24-2019, 09:50 PM   #3
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Depends on what kind of tune you have. Take newer oft tunes where now they cover both UEL and EL headers. To get the most you will need a new tune potentially.

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Old 04-02-2019, 05:03 PM   #4
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Quote:
Originally Posted by evoto86 View Post
Car is tuned if i purchase EL headers how necessary is a Tune ? do you think I will be able to get away with the current tune is it a drastic enough change to re-tune the vehicle ?
It's a good idea to retune, but your car won't explode if you don't.
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Old 04-03-2019, 06:13 PM   #5
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Not necessary at all if going from UEL headers and tune to EL headers. I went from Tomei UEL to SME EL and only thing that changed was that the AFR became rock solid, the car runs so much smoother, and the rumble doesn’t rattle the fillings out of your head! Well worth the exercise and external sound now after 3k thru to 7k is sublime when compared with UEL rumble, and you can now actually have a conversation inside the car...
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Old 04-07-2019, 09:55 PM   #6
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If you are already tuned for a header it should be close, exhaust changes will change low rpm cam timing... That's about it...
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