[toshko321]

I currently have no resonator, and a 11224 Magnaflow muffler and I love the sound But I want it to be a bit louder, so I am wondering if I Should remove The secondary cat. Anyone have an Opinion on this Or even personal experienc?

 

[toshko321]

Anyone know what the purpose of the secondary cat is To begin with? That would be useful for me to know haha

 

[TheBlackBass]

My guess would be to be able to put in higher flow cats without sacrificing the ability to filter the air. So instead of one slowing the exhaust down a ton you have two smaller each slowing it down a bit. The over all result is the same but two is probably better for turbo spooling and such.

Just my guess tho.

 

[FrankG TX]

I actually talked to a muffler shop about this yesterday and since there is a stupid sensor there they say a strait pipe would trip a code. i really just wanted to rip out the one right before the resonator though. probably will just end up putting in a high flow cat

 

[[email protected]]

I actually talked to a muffler shop about this yesterday and since there is a stupid sensor there they say a strait pipe would trip a code. i really just wanted to rip out the one right before the resonator though. probably will just end up putting in a high flow cat

alot of high flow cats still trip a code unfortunately you could.. just gut it yourself..with a crow bar.. then use a spark plug anti fowler to space out your o2 sensor and that might take care of the problem (it does for some cars)

 

[rosscoe21]

Some you have to use two antifoulers. As long as its far enough away that it doesn't sense the extra flow. Had to use two on my s2000.

 

[[email protected]]

Some you have to use two antifoulers. As long as its far enough away that it doesn't sense the extra flow. Had to use two on my s2000.

yup it's a nice way to get around the "visual" inspection some places do for cats as well as still kinda maintain legality lol but have a better flowing exhaust at the same time