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Old 10-24-2007, 08:47 PM   #1 (permalink)
 
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Test pipe need retune?

RIght now I'm tuned for an hfc with stage 1 mods. If I swap out the hfc with the test pipe do I need a retune? Will the tp mess up the maf readings?
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Old 10-25-2007, 01:47 AM   #2 (permalink)
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Swapping the test pipe & HFC will not mess up the MAF readings.
Your turbo will be performing better so depending on how your tuned right now will determine if your maps really "need" adjusting. How close to the edge are you?



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Old 10-25-2007, 07:06 AM   #3 (permalink)
 
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My AFR's are in the low 11's.
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Old 10-25-2007, 10:45 AM   #4 (permalink)
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I'd retune it.



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Old 10-28-2007, 11:08 PM   #5 (permalink)
 
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You do not need to have it retuned just because you are going to replace the hfc with a test pipe.
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Old 11-06-2007, 06:19 PM   #6 (permalink)
 
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Test pipe is ordered. Now just gotta wait for it. When I do put it on will the boost go up a lb. or two without me touching the mbc since it will free up the exhaust a little more?
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Old 11-07-2007, 08:34 AM   #7 (permalink)
 
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Is it the stock BC or a MBC?

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Old 11-10-2007, 03:00 PM   #8 (permalink)
 
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Forge MBC
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