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-   -   Hpipe need tune? (http://mustangforums.com/forum/4-6l-1996-2004-modular-mustang/699933-hpipe-need-tune.html)

dustya 08-20-2013 01:26 PM

Hpipe need tune?
 
01 gt just put hpipe on no cats mileage sucks now and feels alittle sluggish from before and obviously cel came on so do you need to tune when you put aftermarket hpipe or just shut off rear o2's?

school boy 08-20-2013 04:31 PM

just turning off the rear o2 sensors should do the trick

dustya 08-20-2013 06:41 PM

Quote:

Originally Posted by school boy (Post 8269239)
just turning off the rear o2 sensors should do the trick

thxs thats what i wanted to kno


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