I currently have a header, 2.25" cat and 2.25" cat-back... it's a little raspy with the new maglaflow cat... especially when cold... I'm not sure if this is common or not with a new magnaflow, but...

I am thinking about buying this:

CLICKY

... but someone said those are louvered core... I think they're mistaken, but can someone please set me straight before I buy it?

I just wanna mellow it out a bit and tone down the raspyness... thanx

I don't believe they are louverd cores. I have the 31" one and its perforated.

I have the same one, its perforated. Its cheap and works great.


2012 HD VRSCF
2010 Ford Explorer
2006 Ford Ranger
2004 Chevy Cavalier

Walker/Dynomax/Thrush Magnum Glasspacks are perforated cores. I have a 35" X 2 1/4" one under mine.