08 GT exhaust and mpg??

daviszx3

Member

Jun 3, 2007

42

0

6

maryland

Sep 23, 2008

#1

• Sep 23, 2008

• #1

ok here the thing my mom just bought a 08 GT mustang 5 speed and she wants it to be louder ive been lookin for some exhaust for it and have read that if u change to a offroad xpipe tht the check engine light will set is there any way around this? also if i were to leave the x pipe alone wht would b my best for mufflers to get something that is much louder and sounds good? thanks for any help also i heard that changing up your exhaust affects ur mpg is this true?

 

NastyStang113

New Member

Sep 12, 2008

1,567

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Florida

Sep 23, 2008

#2

• Sep 23, 2008

• #2

Well you'll need MIL Eliminators at the very least. I've heard a lot of problems with them not working though. To get rid of the CEL for sure you'd need to get a programmer like the Xcal3 and have the tuner turn off the rear 02s. I'd recommend Justin at VMPTuning.com, he does an AMAZING job on these cars. I think I'd do the O/R X Pipe first with the factory mufflers and see how she likes it. It's going to be pretty loud. I doubt you will see any mileage increase, but you will gain about 3-4 rwhp from the cats being deleted and about 15 rwhp from the tune.

 

D

dro

New Member

May 25, 2003

165

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Birmingham, AL

Sep 24, 2008

#3

• Sep 24, 2008

• #3

if your MPG does go down its because of the lead foot wanting to hear the new exhaust...

 

bhuff30

Founding Member

Dec 11, 2001

6,037

35

129

Olathe KS

Sep 24, 2008

#4

• Sep 24, 2008

• #4

Or on the contrary, If your mileage goes up, then it's because the exhaust is too loud and you are constantly afraid of getting a ticket or waking the neighbors.

dro said:

if your MPG does go down its because of the lead foot wanting to hear the new exhaust...

Click to expand...

 

daviszx3

Member

Jun 3, 2007

42

0

6

maryland

Sep 24, 2008

#5

• Sep 24, 2008

• #5

ok thanks alot but if changed up just the axle back wht wld u recommend to be loudest n sound good?

 

D

dro

New Member

May 25, 2003

165

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0

Birmingham, AL

Sep 24, 2008

#6

• Sep 24, 2008

• #6

bhuff30 said:

Or on the contrary, If your mileage goes up, then it's because the exhaust is too loud and you are constantly afraid of getting a ticket or waking the neighbors.

Click to expand...

neighbors... LAF....

 

autumn_again

New Member

Oct 2, 2007

356

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0

Hamilton, NJ

Sep 25, 2008

#7

• Sep 25, 2008

• #7

maybe the borla stingers? if you want loud axle-back, macs has the boom tubes, slp has the loudmouth, pypes has the muffler delete. it'll be loud, and as far as i'm aware, axle-backs don't void warranty. I could be wrong though.

 

daviszx3

Member

Jun 3, 2007

42

0

6

maryland

Sep 25, 2008

#8

• Sep 25, 2008

• #8

has anyone tryed the summit brand axle backs part # SUM-640750 anyone kno how loud they r n how they sound

 

daviszx3

Member

Jun 3, 2007

42

0

6

maryland

Sep 26, 2008

#9

• Sep 26, 2008

• #9

wht snds best pypes violator axle back or the muffler delete kit? and which is the loudest? also y is the muffler delete more expensive when its nothing but a straight pipe doesnt make much sense