sure it won't mess up back pressure or affect performance?

 

Thats what im asking. The guys at the shop say its fine. But im asking if anyone knows of any issues with removing it

 

well how far is it away from the nearest O2 sensor?...guys are muffler techs of course they will say its fine

 

I'm not under the car right now. But the second cat is behind the o2 sensor like one foot or so.

 

It's a small high flow cat. The differance in sound probably won't be much. But it is a $10,000 fine for removing a cat and not replacing it. Your state not having emissions testing has nothing to do with it.

Do it right, or don't do it at all.

 

I wouldn't do it personally. If you want more sound, pick up a cheap aftermarket muffler and have them weld it on. You can check with Thrush or Dynomax...both of which are pretty cheap and will give you added sound. I'm adding a Dynomax to mine.

 

It actually depends on your state and the location of the cat. Ths being a secondary it shouldn't cause any violation issues. Look at how many lnf guys are running catless dp. Id say try it keep the cat or even better pick up a high flow metal core cat and if you don't like it simply put one back on. I ran a 300 cell metal core vibrant on my vibe which was a 1.8 1zz Toyota motor and it made a larger difference than just the rest of the exhaust put together.

 

Im at the shop now. Im getting it removed. If it dont work out ill put it back on. Trial and error.

 

Ok the second cat is gone. After about ten miles around town it is awesome. At a steady speed or at an idle there is no noticeable noise. Under light acceleration you can here the exhaust. Under heavy throttle all I can here is the intake.

I'll post a sound clip in a little while. I think it sounds awesome. I had the resonator removed and it sounds about like I removed another resonator. I like the pop and Gargle under deceleration.

 

This is a federal law. catless dp is also illegial. Those are sold for non public road use only. I'm sure the users know that.....