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  • 2005 - 2014 S-197 Mustang -General/Talk-
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need help 07gt v8 cat converter removed

  • Thread starter Thread starter biljeek
  • Start date Start date Oct 1, 2009
B

biljeek

New Member
Oct 1, 2009
1
0
0
Oct 1, 2009
#1
  • Oct 1, 2009
  • #1
hi all

cat removed with mid x pipe and magnaflow catback

i am facing a slight problem after i removed my cat converter, the issue is every time i push the clutch while stopping or down shifting the RPM goes under 5 for few seconds then goes to idle and some time this cause turn the engine off, this also happening when i rev the car while stopping.

do i need to tune my car with SCT tuner? is the tuner gonna solve my issue?
 
M

mustangdave

My rearend needs a stud and two nuts.
Founding Member
Feb 26, 2002
2,976
1
56
North Carolina
Oct 1, 2009
#2
  • Oct 1, 2009
  • #2
You definitely need a tune to cut off the oxygen sensors and tune the engine. If I were you, I wouldn't even drive the car:no telling what the sensors are telling the engine. I'm actually surprised it runs at all; probably in limp home mode.
 

walter

Founding Member
Aug 13, 1998
1,054
0
46
Houston TX
Oct 1, 2009
#3
  • Oct 1, 2009
  • #3
+1 no cats = you need a tune.

In these cars the computer is so sensitive that if you mess with the headers or cats and dramatically change the exhaust characteristics or it'll act up.
 
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