a high flow cat make my sound louder? i have magnaflow muffs but that is all. also (please dont make fun of me) if i was to buy one would i need to buy two or one for my car beings its a dual exhaust? or is this where you replace the cat with a straight pie and get more sound. again guys i know i probably sound stupid but ive learned alot from you guys by asking questions ty.

 

anybody?

 

I think if you want it real loud, you should straight pipe it

 

high-flow cat would add a tiny rumble. You only have 1.

Removing the resonator would make it louder too

 

i already removed the res. so im good there. anybody have any eccomendations on a good and loud high flow for 7th gen. and as always ty guys.

 

I was going to say your only real option is the Hogan downpipe... but their website is gone?

 

On my 07 SS(sold)I removed resonator and and put two off brand Flowmasters. Sounded really good BUT, with the DOD sounded like crap when it kicked in.

 

so if i order one from zzp (a downpipe) i have to get it with the cat or i wont pass emissions correct? will i still get a deeper sound.? in other words i cant order the off road catless downpipe and install it and pass emissions?

 

anybody?

 

How do they do your emission test? Most places test 96 and newer cars via the computer - if you have the code for the cat deleted so it doesn't throw a CEL it won't show up on the scan.

Now some places still run mirrors under the car to verify the cat is in place. If yours doesn't do that you can get away with no cat provided the codes are cleared.