Anyone change out there converter for aftermarket high flows or straight thru's ? I was wondering if there any improvement after the change ? And which brands were tried. I need to keep a cat inline, but looking for better performance and fuel mileage.

 

a cat back exhaust will do that

 

yea a quality cat back system will do that and is much easier than changing a cat i would love to replace my cat with a high flow i just cant find one though...

 

MagnaFlow makes Hi Flow Cats

 

none recomended for an 03 ram 4x4 with a hemi, wtf!

 

I read on a thread a few months ago and some one said that the stock cats on the Hemi were high flow.

 

The stock Cats on the Ram are pretty good, Magnaflow makes a good hi-flow Cat, but it isn't worth the cost for the slight increase you'd get over the stockers.

 

+1 .

 

I've heard that the cat isn't the biggest exhaust restriction, but that the factory Y pipe slows things down.

 

The 08 cats flow real good. The crimp at the Y needs some improvement.

I have a set of high flow converters from bear river converters for my Mustang.

www.bearriverconverters.com