How many cats came on the 89 5.0?

[kevsstang]

thanks guys i will give the local DOT a call and find out what they say and then i will post what i have found to hopefully help out others who run into the same problem.


Mike does Bassani make that type of X pipe with cats, or does another company. thanks for any info.

 

[87TTopGT]

All 86-93 5-liter systems have four cats on the stock H-pipe. Just downstream from the headers are the "light-off converters", which are three way converters (HC, CO, & NOx) constructed of a ceramic honeycomb coated with rhodium/platinum catalyst that begin operating at a lower temperature than the second pair of converters. The second pair of cats are again a ceramic honeycomb, but coated with platinum/palladium catalyst which further reduce HC & CO to acceptable levels. (According to Mustang 5.0 Technical Reference & Performance Handbook by Al Kirschenbaum)
I'm sure that during the intervening 15 years technology has improved to enable two cats to do what four did in 1989. There are many catted H and X pipes on the market today, not sure which are more effective than others.
Thank God I live in Arkansas! (No emissions testing or even inspections!)

P.S.- Not sure on price of Bassani's, buddy bought whole cat-back for @$1200.

 

[Michael Yount]

87 - thanks for even more detail on the 2 and 3 way cats. And you're right - the two ways are a thing of the past on newer cars - largely because the efi/injectors control the mixture even better than they used to so all the clean up can be done by a 3 way.

 

[jwzg]

Thank God I live in Arkansas! (No emissions testing or even inspections!)

You sure you want to thank God for that? Here in Alabama, we give thanks for Arkansas on a daily basis because we don't have to be last in everything.

Seriously, thanks for setting us straight. Yeah, it's nice not to be bothered by big brother down south. However, inspections are coming out part of the country sooner or later, so be prepared. I have a set of high-flow cats on mine because I'm a little bit of a green freak as well. It's responsible and keeps me from choking on the fumes. Just my .02.

 

[87TTopGT]

No, no you got it all wrong- it's "Thank God for MISSISSIPPI!"
That's how Arkansas stay's 49th in education! Oh, well- we've still got Keith Craft racing... and up here in God's country in NW AR you can find a good drunk snake road purty much annywhurs to stretch yore pony's legs when you wanta. Hell, most of the cops still use X-band! Anybody for a little Lynrd Skynrd?

 

[jwzg]

No, no you got it all wrong- it's "Thank God for MISSISSIPPI!"
That's how Arkansas stay's 49th in education! Oh, well- we've still got Keith Craft racing... and up here in God's country in NW AR you can find a good drunk snake road purty much annywhurs to stretch yore pony's legs when you wanta. Hell, most of the cops still use X-band! Anybody for a little Lynrd Skynrd?

Sounds like north Alabama too. (exc. Keith Craft of course)
Beautiful country!

 

[slo65]

thank god for california what am i saying... hey we got some hotbeaches and even hotter girls

 

[ill advised]

3-way cats: Who actually makes them and do the typical aftermarket catted pipes use them? Is there a way to visually tell the difference between a 2 and 3-way or have to 2-ways been phased out anyway?

 

[cjman15]

i live in adams county, PA and my car has no cats and passed state inspection about a month ago!

 

[kevsstang]

cjman did they do a visual of your car or emissions test or what? that would be around Gettysburg?