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Discussion Starter #1
Im about to purchase a new header for my ST and I would like to hear from those who got the header without a tune... or a least waited for a little....

Is it safe?
can it cause any problems?

[cheers]
thanks

Mason H
 

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Ran mine without a tune for around a month and it was ok. Seemed to run a bit rich but I couldn't really tell without a wideband.
 

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BodyKits=PantiesDrop
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^^he probably wants duratec advice haha...
 

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BodyKits=PantiesDrop
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with the mechanical CEL fix i'm sure it will work just fine
 

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Scuba Edition
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Drove mine for a while without a tune with no problems what so ever.
 

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Discussion Starter #8
im sure this has been answered 100 times, sorry to ask again...

how would you eliminate the CEL without a tune?

thanks
 

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^^ im sure if you get a tune that could be fixed. but your mpg went down ,,, you should prolly take you foot of the gas once a while.lol
 

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^^i cant help it i love the sound!!! and the performance boost!!

oh and im prolly gonna wait till i get the FS turbo kit for that tune! i think it would be a waste of money to get a tuner now and then a couple months down the road get one w/ the kit!
 

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BodyKits=PantiesDrop
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my gas mileage went up on the highway [thumb]
 

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Head Hurt
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I'm running a header, 2 1/2" exhaust, SRI and TB spacer on my 08' without a tune. I also have a wide band A/F monitor and the A/F mixture is fine.
 

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well the reason for my pain at the pump is that i have a header w/ 2 o2 bunges and my car has 3 o2's! so one is disconnected! thus causing my bad gas mileage!!!lol
 

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The tune will turn off the 1 or 2 other sensor to keep it from showing a cel. Also its a good idea to get a tune, so that if you do throw a cel for another problem then you will know. Otherwise it will always be on.
 

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i wear no pants
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it shouldnt matter if its on a duratec or a zetec its still on a ford 4 banger
two entirely different motors and act two entirely different ways.
 

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I've had mine since mid-September and finally got the mechanical CEL fix to work and it's running great!
 
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