Two cat converter? - Pirate4x4.Com : 4x4 and Off-Road Forum

jfairYJ · 09-15-2006, 08:12 AM

I have a 95 F150 4x4 with a 4.9 and it seems to have two cats back to back then a muffler, is this right? Or am I just losing my mind.

If im not losing my mind why are there two and should i leave it that way? Im getting ready to put a flowmaster on it and im going to get rid of anything that may be causing restiction.

Thanks guys
Jeremy

gddyap · 09-15-2006, 08:47 AM

Two cat converters are not uncommon. My California spec'd Toy Tundra has three cats. 49-state Tundras have two. As a result my Tundra is spec'd with 5 less hp than 49-state Tundras.

NetBSD · 09-15-2006, 09:11 AM

are you sure one isnt a resinator(sp?)?

Jess James · 09-15-2006, 09:24 AM

Quote:

Originally Posted by jfairYJ

I have a 95 F150 4x4 with a 4.9 and it seems to have two cats back to back then a muffler, is this right? Or am I just losing my mind.

If im not losing my mind why are there two and should i leave it that way? Im getting ready to put a flowmaster on it and im going to get rid of anything that may be causing restiction.

Thanks guys
Jeremy

My 1990 Bronco is set up like that with a 302.

jfairYJ · 09-15-2006, 09:52 AM

Not sure if its a resinator (sp) or not. Sure looks like a cat to me. Im just ganna pull both and replace with one good high flow converter, I figure that should do the job.

We don't have Echeck here so i don't think it will raise any issues.

NetBSD · 09-15-2006, 09:59 AM

Quote:

Originally Posted by jfairYJ

Not sure if its a resinator (sp) or not. Sure looks like a cat to me. Im just ganna pull both and replace with one good high flow converter, I figure that should do the job.

We don't have Echeck here so i don't think it will raise any issues.

dont run a cat at all then, or just punch your current one out and save $100

jfairYJ · 09-16-2006, 09:53 AM

Good piont. I didn't check to see if there is a O2 sencer behind them or not. Ill have to do some looking arownd.

HecTiK · 09-16-2006, 10:39 AM

or...Just take them both out and replace them with a glasspack or somethin. I did that in my '90 and it worked fine.

NetBSD · 09-16-2006, 07:12 PM

i punched out the cat on my cousins 96 eclipse RS and no errors from the O2 and it sounds alot better like that. he was so amazed at the sound and better air flow, i swear he was ready to hump my leg

09-15-2006, 08:12 AM	#1 (permalink)
jfairYJ Registered User Join Date: Aug 2005 Member # 51278 Posts: 93	Two cat converter? I have a 95 F150 4x4 with a 4.9 and it seems to have two cats back to back then a muffler, is this right? Or am I just losing my mind. If im not losing my mind why are there two and should i leave it that way? Im getting ready to put a flowmaster on it and im going to get rid of anything that may be causing restiction. Thanks guys Jeremy

09-15-2006, 09:11 AM	#3 (permalink)
NetBSD Registered User Join Date: Jul 2005 Member # 50360 Location: Mount Carmel, PA. Posts: 1,636	are you sure one isnt a resinator(sp?)? __________________ 89 Ranger, 2.9, 6" lift, 35" baja claws 92 Silverado, 6.2L, GM-3 Turbo at 10PSI Last edited by NetBSD; 09-15-2006 at 09:11 AM.

09-16-2006, 07:12 PM	#9 (permalink)
NetBSD Registered User Join Date: Jul 2005 Member # 50360 Location: Mount Carmel, PA. Posts: 1,636	i punched out the cat on my cousins 96 eclipse RS and no errors from the O2 and it sounds alot better like that. he was so amazed at the sound and better air flow, i swear he was ready to hump my leg __________________ 89 Ranger, 2.9, 6" lift, 35" baja claws 92 Silverado, 6.2L, GM-3 Turbo at 10PSI

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

09-15-2006, 08:47 AM	#2 (permalink)
gddyap Registered User Join Date: Oct 2002 Member # 14629 Location: Mountain View, CA Posts: 278	Two cat converters are not uncommon. My California spec'd Toy Tundra has three cats. 49-state Tundras have two. As a result my Tundra is spec'd with 5 less hp than 49-state Tundras.

09-15-2006, 09:52 AM	#5 (permalink)
jfairYJ Registered User Join Date: Aug 2005 Member # 51278 Posts: 93	Not sure if its a resinator (sp) or not. Sure looks like a cat to me. Im just ganna pull both and replace with one good high flow converter, I figure that should do the job. We don't have Echeck here so i don't think it will raise any issues.

09-16-2006, 09:53 AM	#7 (permalink)
jfairYJ Registered User Join Date: Aug 2005 Member # 51278 Posts: 93	Good piont. I didn't check to see if there is a O2 sencer behind them or not. Ill have to do some looking arownd.

09-16-2006, 10:39 AM	#8 (permalink)
HecTiK Registered User Join Date: Jul 2006 Member # 76635 Location: Aberdeen, SD Posts: 147	or...Just take them both out and replace them with a glasspack or somethin. I did that in my '90 and it worked fine.