These cats aparentl;y flow a lot better than the stock ones. I expect that
changing to one of these may improve power more than most exhaust mods you
can do. Here are the results I got on a 99 R/T based on g-tech readings.
rwhp stock at 4k miles 189. Install Mopar headers and down pipes and add
ipen air cleaner, 210 hp. Replace stock cat with a 3"in and out Carsound
high flow cat and a single 3" in 2X2.5 out Dynomax muffler changing the pipe
from the cat to the muffler to 3" also, 225 rwhp. These mods alone have
netted close to 30 hp at the flywheel and about a 1.5 mpg improvement in mpg
at 60mph. The Carsound cat is a lot shorter than the stock cat and lighter
too. There have been no check engine lights in over 20k miles and I am now
at 43k on the truck. The truck is a lot louder though!.
----- Original Message -----
From: "dametalr" <dametalr@pacbell.net>
To: "Dakota Mailing List" <dakota-truck@dakota-truck.net>
Sent: Friday, June 28, 2002 3:21 AM
Subject: DML: re:Carsound High Flow Catalytic Converter Group Buy
>
> Bill,
> Why are these cats so great?? I would imagine that they are high flow
units.
> Is that the main advantage over a stock replacement? If you have some
rough
> outside dimensions that would be helpful. Perhaps a website with more
info.
> Thanks for your effort to put together a group buy. I'm not too sure of
the
> replacement interval for cats, though for $80 -it's probably worth it at
> 60k.
>
> Regards,
> Ken
>
>
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