There is a very large difference in catalytic converters
between OEM and aftermarket.

OEM cats are more effective at their job protecting the
environment - the active ingredient is platinum, which
ain't cheap, and OEMs simply use more of it.

Secondly, they *tend* to be better constructed - they have
to last through the warranty period don't forget, which
affects the mfg's reputation.  (Will you be angrier when
your $150+ VW cat fails quickly, or the $55-$75 cat you
bought instead?)

As to whether OEM is worth the difference (e.g. cost per
month given part longevity), I won't hazard a guess.

David

--- Phil Stanhope <surfmobile007@YAHOO.COM> wrote:

> Hi,
> BusD. Carries Emico cats for $128, apparently Emico is
> OEM.... and they have a stainless steel generic for
> $99. Is one better than the other? Also, Ive sourced
> some el-cheapos for $55 that require welding. Is there
> a real difference in all of these cats or is it
> stainless v.s non-stainless?
>
> thanks
> Phil 84' Westy.....Tiico converted daily driver since
> 2001

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