01 Mustang Exhuast

[ALVARADO302]

So i was thinking about purchasing a h-pipe for my gt My only question is that If I get an off road one I know it wont pass smog but will my check engine light be all the time? Also all h-pipes that you buy for are cars have the openings for the oxygen sensors right? Thanks guys new to the newer mustang was a master at the fox bodies.

 

[trailblazr81]

The service engine light soon light will come on unless you have the MIL eliminators, or turn 'em off with a Diablosport Predator or other tuner. It wont affect performance, just have that annoying light on. Most H pipes I have seen have the openings for the O2 sensors on 'em.

 

[ALVARADO302]

But as soon as I slap on the stock H light should turn off? So if I were to install one with a pair of high cats will it come on?

 

[trailblazr81]

Light will go off after you disconect then reconnect the battery. If you get a H pipe with High Flow cats you should be fine. I run a O/R H and used a Predator to turn off the 02's. I'll just swap in the stock H when comes time to smog.

 

[ALVARADO302]

Any Recomondations on a good h x with high flow cats for a good price not to expensive and a nice sound? Would it pass smog with high flow cats? Anybody have a used h/x pipe with a pair of high flow cats that you want to get rid of?

 

[03ghoststang]

if its a visual test as long as you have cats you will pass but if its a actual sniffer test you will need the stock H pipe

 

[ALVARADO302]

What bout if I were to cut four of my cats? They come tih six right? IF i were to cut four of them would my check engine light turn on?

 

[poorcollegekid]

99 up i thought only had 4. the 96-8s had 6. my friend just disconnected his battery when he put on his O/R H on his mach 1 and the check engine light has never come on. I however purchased MIL eliminators for my 96 with an O/R pipe.

 

[trailblazr81]

Your 01 should have 4 like my 00. It was the pre 99's that had 6. It has alot to do with sound preference. Deeper sound go H if you want a more raspy go X. Or do a search on "Pro Chamber" I have the H with Flows Super 40's and love the sound. I'd say just get an O/R pipe and switch when you need to smog it.

 

[ALVARADO302]

So it would sound better though if i cut two of them right deaper I also have a 40 series Flowmasters and you can hear them but I just want them a little louder not to much just enough to be noticeable.

 

[03ghoststang]

actually there was a few 04's that ive seen with 6 cats on the stock H-pipe

 

[ALVARADO302]

So would it make a big difference if i remove two of the four cats?

 

[03ghoststang]

So would it make a big difference if i remove two of the four cats?

from your stock H no just go with the aftermarket one and wjen it comes time to do emissions just swap them