Should I also get a hi-flow cat converter

**GP24** · 03-23-2012

I recently ordered a set of headers from SSAC, and I wanted to know should I also get a hi-flow cat. converter as well. Will that be beneficial or is the stock cat. converter sufficient

**blueguy** · 03-23-2012

Run catless?

**SlowNA06** · 03-23-2012

Never heard anything bad about the stock one. If you're close to 150,000 miles, I'd just get a new one or run catless, though.

**GP24** · 03-23-2012

Originally Posted by bluegtp91

Run catless?

Two question about running catless:

1) Will that effect my emission test?

2) If I run catless would I have to buy a pipe to replace the converter or should it all be the header set?

**blueguy** · 03-23-2012

Answer to both...the headers come with everything to bolt up to a factory catback system...flange and all...but it comes with a race pipe, ala...no converter. But yeah, it all bolts up just fine with everything included.

And unless you know someone that can pass it, then no, you will need a converter...

**Steel Armadillo** · 03-23-2012

Catless is better.

And no, it will fail emissions. If you get the O2 sensor faker from zzp, it will keep you from getting a trouble code. But if they use the sniffer, it will still fail.

**GP24** · 03-23-2012

Originally Posted by Steel Armadillo

Catless is better.

And no, it will fail emissions. If you get the O2 sensor faker from zzp, it will keep you from getting a trouble code. But if they use the sniffer, it will still fail.

Would a tuned PCM help with that?

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**SoergBot** · 03-23-2012

Ohio doesn't do emissions testing anymore though, last i checked, so you would be fine running catless

**GP24** · 03-23-2012

I plan on moving within the next 1.5 years, so I was just concerned about any issues I would face.

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**blueguy** · 03-23-2012

Move to Missouri or Kansas.

Honestly, no one gives two sh1ts here about anything.

OR, buy a fake 3" cat from Frozen Boost and just bolt it in there...to add, what year is it? Because you can only run an o2 sim with '97-'00 cars...after that you need to actually run the rear o2, just remove the codes via the PCM.

**GP24** · 03-23-2012

Originally Posted by bluegtp91

Move to Missouri or Kansas.

Honestly, no one gives two sh1ts here about anything.

OR, buy a fake 3" cat from Frozen Boost and just bolt it in there...to add, what year is it? Because you can only run an o2 sim with '97-'00 cars...after that you need to actually run the rear o2, just remove the codes via the PCM.

It's a 2004

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