Anyone exprience any low end decrease in power after installing the flowmaster thunder axel back muffflers. Some people say they have noticed a negative result, however flowmaster says no h.p. loss on there test. I don't understand how you can get h.p loss on a low flow muffler.

 

as I just posted several times and spoke to Flowmaster, you get a 10% horsepower increase, but you have to reset the computer in order to get the full effect of the mufflers, yea you may feel a lil decrease at first , but give it time to break in, all new mufflers need to be broken in, did you reset your computer??

 

[quote=cfr865,May 12, 2005, 10:14 AM]
Anyone exprience any low end decrease in power after installing the flowmaster thunder axel back muffflers. Some people say they have noticed a negative result, however flowmaster says no h.p. loss on there test. I don't understand how you can get h.p loss on a low flow muffler.
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No I didn't reset my computor, but I will, thanks for the info.

 

yea, reset the computer, unplug the battery for 20-30 minutes, then plug it back in and drive the car at least 10 times, so the computer can calibrate to the new mufflers......

 

i appologize, not 10 times, 10 miles!

 

i noticed a loss at first as well. i didnt disconnect the battery, but after driving it for about an hour, it seemed to come back into it. should i disconnect my battery to reset my computer or will it learn to adjust without a reset?

 

I would think that the computer should/would adjust itself with time. You say that yours seems to have come back, maybe that is what it did. Adjust itself. Reset is probably just meant to make it happen quicker.



But I could be wrong

 

if you dont reset it, it could take time for it to adjust, possibly days, its just quicker if you just reset it and run if for about 10 miles, better to get the effect within a day rather than several days

 

i have not felt any loss and it sounds much better

 

do the new Flowmaster mufflers for the 2005 Mustang fit the V6 mustang as well?

 

i would think so, i just don't think they sell the single muffler yet, call flowmaster, maybe they can sell you a single muffler