Which HFC?

[04viperram]

Which high flow cats you guys running and how long they last for ya? Guy at a muffler shop told me the magnaflow hfc will probably crap out in a few months! Is that true? Seems to me like a lot of money to have to replace them all the time! Which name brands do you guys run and how long ya had them?

 

[JeffBoyette]

Alot of guys are running magnaflow. Havent heard of any problems. Had really good results from dynatech powercats. High flow. If you have to pass a sniffer, magnaflow. If you want more flow and sound dynatech. Both have plenty of longevity and are made very well. If your not running leaded fuels, have a stupid rich tune, or are spraying or making boost you should have any problems. 40k miles?

 

[04viperram]

Does it make a difference which one? None of the ones I'm finding say they are for anything bigger than a 6.2L. Anybody got a model number of what you got?

 

[JeffBoyette]

79-400300 $169.95 3" in/out
It flows 396.4 CFM each

The largest magnaflow was tested to 355.

 

[04viperram]

cool, thanks. I'm trying to get my exhaust done how I want it before I get Torrie to tune it for me!

 

[HaroldD]

I've got whatever BillyBoat uses... ~60k mi on them and still going strong.

 

[Psycho1122]

I've got whatever BillyBoat uses... ~60k mi on them and still going strong.

The Billy Boat HFC is an Eastern 3" 200 cell metalic foil type.

B&B chose these for build quality, reliability and minimal flow restriction > 4 h.p.

More than enough flow per cat for our trucks:rock::

Eastern Bullet Catâ„¢ High Performance Catalytic Converters

They work great w/o throwing codes or excessive raw fuel smell at start up.