Midpipe ? on a 2003 GT

J

jared1993

New Member

Mar 2, 2008

2

0

0

NJ

Jun 21, 2008

#1

• Jun 21, 2008

• #1

Hey guys...

I might be purchasing a 5 speed 2003 GT fairly soon. Currently it is basically stock. Has K&N cold air and PYPES 2 1/2" mufflers. If I wanted to change the midpipe to the pypes offroad X...can I do it? Or do I need to use another brand that would work? Basically can I fit the X-pipe to the stock manifolds...then to the stock exhaust...or will I need a new catback as well? I'd do LT's but wouldn't have the $$$. Also, what else would I need. I've done a little searching...apparently I'd need a new passenger side gasket, 02's, and mil elim's?

Thanks for the help guys

 

Black_02_GT

Member

Mar 2, 2008

0

0

16

Mississippi

Jun 21, 2008

#2

• Jun 21, 2008

• #2

MIL elims apparently are not being made anymore... so you'll have to deal with the check engine light, somehow figure out the diagrams on DIY mil elims or get a tuner. Midpipes are just swapping out the stock h and a straight forward bolt on to the stock hardware

 

J

jared1993

New Member

Mar 2, 2008

2

0

0

NJ

Jun 21, 2008

#3

• Jun 21, 2008

• #3

OK...so another ?...With the offroad X-pipe, would the car still have the "pre-cats"?

If I decided to get the Pypes CATTED X(I really don't want the CEL light on) I assume the car will still have 4. That kind of defeats the purpose. I really don't think the car needs 4 cats

 

Stark77

Member

Jun 11, 2008

501

0

16

Tallahassee, FL

Jun 21, 2008

#4

• Jun 21, 2008

• #4

if you are running stock headers - yes

 

B

blubullett

Member

Jun 22, 2006

535

6

18

Modesto, CA

Jun 21, 2008

#5

• Jun 21, 2008

• #5

You dont need new oxygen sensors to change your mid pipe. No you will not have your pre cats anymore, all the cats are located on the mid pipe. A catted mid pipe has 2 cats and an off road has none. I dont know what is legal in your state but you cant remove any cats in california. Yes you can change out only your mid pipe if you want the stock headers and cat back work fine.

 

isjoining

New Member

Mar 28, 2007

143

0

0

Orlando, FL

Jun 22, 2008

#6

• Jun 22, 2008

• #6

blubullett said:

I dont know what is legal in your state but you cant remove any cats in california. Yes you can change out only your mid pipe if you want the stock headers and cat back work fine.

Click to expand...

its illegal to remove cats in any state considering its federal law.

 

T

TropicMustang

Member

Jul 29, 2007

77

1

8

Concord

Jun 22, 2008

#7

• Jun 22, 2008

• #7

Installing the X-pipe is pretty easy besides one bolt on the passenger side. you will find out which one. Make sure you change or check the metal gasket that connects the mid-pipe to the header. In california you can only replace your cats if they are malfunctioning or if it has over a certain amount of miles. Ive got the Pypes off road x and the SLP lM1 catback and let me tell you it is pretty loud but i love the sound. anyways good luck.