Hey guys...i have magnaflow sido straight out the rear and would really like it louder. If i remove the two rear cats how much louder will it be? Will it still be able to pass inspection?

 

it's without a doubt against federal law and most likely against state laws as well. Whether it passes inspection or not depends on whether the computer detects a change and logs it, and how good of a visual the inspector does.

But I'd be more worried about the huge fine and prison term than anything else.

Lastly, you won't gain any performance cutting them off. This is 2006, not 1975 when cats first appeared and were highly restrictive. Today's are very free-flowing.

 

Wrong, people have seen a increase in HP due to cutting the rear cats out as well as a much deeper sounder.

 

It will make it louder and I dont think the guy doing a visual inspection would notice b/c the 06 and up truck only have 2 cats only the 04-05 have 4 of them.

 

CUT EM OFF, what's the worse that can happen you get free room and board Sorry no help here. I haven't done any exhuast mods yet.

 

It will be quite a bit louder and you should see some gains in hp. I had a 2006 WRX and got almost 20 hp by running a 3" catless system. I was able to remove the CEL's with my tuner and it would pass inspection here in Texas. My dad has a SS Trailbalzer and his 1/8th mile times dropped from a 8.98 to a 8.75 by just removing the cats. Same track and same temp outside. I drove it before and after and I could tell a difference.

 

i just recently removed mine and i can honestly say it helped some and the sound is awsome. just a little louder but not to loud. i would do it again.

 

Has anyone used the Magnaflow cats on their 2006?

 

Compared to the old ones maybe... doesnt matter what year it is.. they're still restrictive.

 

You need to look up your state laws and find out how many you have.

 

hahahaha. Don't drop the soap

 

Cut them off and get you a set of highflow cats. it will be loud and still be legal

 

What he said.^^^^^^

 

FX4 Matt

I have a 2006, will I need to order anything else other than the new cats? . . and where is the best place to order?

 

and it will void your powertrain warranty

take it in for service and let us know how it works out for you...