I have a full 3.5 inch helix turboback on my car with a test pipe... state trooper " douchebag" pulled me over and gave me a 10 day fixit for car being too loud... if I remove the testpipe and put in a high flow cat will it be noticeably quieter?

 

yes. also if you can just buy a silencer for your muffler maybe a universal one thatll make even quiter then anything

 

a silencer?? would that just go in the back of my pipe? where the muffler comes out the bumper?

 

http://www.cbstuning.com/heca03evofrs.html
is that the exhaust u have? it looks like it comes with a silencer. its the part on the bottom left of the picture the insert

 

cant find anything on that exhaust really. does it have an actual muffler or is it just a straight tube? regardless of the silencer a cat will quiet it down and also a resonator. personally i wouldnt change it if i got a ticket or not. how are they going to know if you made it quieter? are they requiring you to goto inspection within 10 days with it being quiet or something?

 

its a strait through tube same cop got my for tint and exhauste 3 times in 2 months now.. gotta do somthing

 

but it has a screw hole like its a spot for a baffle.... where is a good place to get a good high flow cat.... maybe a resignator?

 

You're gonna have a hard time finding a bolt-on unit for a 3.5" exhaust.

 

Says 80mm.. In the link which is pi

 

http://www.lancershop.com/customer/home.php?cat=69
you have many options. if it is a 3.5" i dont know where your going to find a high flow cat for that specific for our car but they might be out there.
your probably going to need some fab work to get a cat on a 3.5 exhaust

 

Or maybe its 3 inch I cant remember now

 

don't do anything.is your exhaust louder then 93db?that trooper should off measure it first to prove it.

 

I'm in wisconsin and he said anything besides oem is illegal

 

What about my oem cat.... I found 3 inch on ebay but but says high flow cat test pipe resignator

 

theres a bunch of 3 inch on that link i put up