Ok guys I have a 06 ss/sc with 2.8 60's cooling mods and a Zzp mid length header 3" dp catless it goes down to 2.5 should i weld in a cat ?? then it goes to a 2.25 gmpp exhaust I am getting tired of blowing gaskets I plan on goin tvs should I go with 3"?? And who's?? And if I do put in a cat who's?? Thanks guys

 

Everyone is different on exhaust. I personally wouldn't run a 3" without a cat though. These cars are obnoxious without a cat with 3" exhaust. I did a custom exhaust because I didn't like the sound of any of the manufacturers. I also like the Vibrant 3 bolt flanges because they don't move as much as the 2 bolts setups that tend to leak.

 

What muffler and resonator did you use??

 

I don't run a resonator. I run a Magnaflow 4" round muffler in place of the resonator and a Magnaflow oval out back. Connecting it all I used a Mandrel exhaust SS piping kit with Vibrant 3 bolt flanges. If you cannot weld, you would have to have someone do this and many shops won't weld with stainless wire. I have had 4 exhaust setups now and I definitely like this one the most. But that is just me. I would have liked to test a resonator in place of my first muffler but I just got tired of tearing it apart and welding new setups together. I like the looks of the Vibrant Ultra Quiet resonator but I don't know how well it fits in the exhaust tunnel under the car. Some of the guys on here may have it and would be able to tell you how it sounds.

 

[QUOTE=dspeed123;537663} I personally wouldn't run a 3" without a cat though. These cars are obnoxious without a cat with 3" exhaust.


so are catless 2.5in exhst..... i should know.... im puttin in 2 resonators now a 10in and 18in cuz its drone-------ing.

 

from what everyone has told me, if you plan on going tvs, go with a 3". Im rockin the Hahn and absolutely love it