Catalytic Converter.

Bscanlon64 · Jan 11, 2014

Just got my magnaflow y pipe. Gonna put on a new cat while I'm getting exhaust done. My truck is an 05 2500. Looking to just add a universal magnaflow converter, but some of them were listing vehicle weight as a spec... Is that something I need to consider when purchasing?
Also, has anyone used the new magnaflow "spun" converters?

Sent from my iPhone using Tapatalk

moparman · Jan 11, 2014

Ive had very bad luck with the magnaflow convertors. The exhaust shop i used to work at carried them as the "cheaper fix" for customers that couldnt afford a new factory cat or an aftermarket direct fit. I had cars coming back 4-6 months later with the light on for cat issues. every time i removed it to replace with something better, the magnaflow was always plugged up, the materials had broken down or the guts were just gone. If your light isnt on for a cat, i would save your money and leave the original in there

Sent from my Galaxy S3 using Tapatalk 2

audio1der · Jan 11, 2014

Do you NEED converters? The stockers are a hindrance, Maggies are lesser quality...a piece of pipe happens to fit and flows better... :signs6:

Bscanlon64 · Jan 11, 2014

Well... My truck doesn't have to get emissions tests... I could technically do without... But I don't want a check engine light and won't it run like crap!?

Sent from my iPhone using Tapatalk

moparman · Jan 11, 2014

Youll lose some of the low end power, the exhaust will also get rather loud as well. You can fake the computer into thinking the cats are still there by spacing the downstream oxygen sensors

Sent from my Galaxy S3 using Tapatalk 2

Bscanlon64 · Jan 11, 2014

Hmmmm... Very tempting. Will a tune eventually eliminate the need to even continue to run an 02?

Sent from my iPhone using Tapatalk

ST-8 · Jan 12, 2014

No cats here with a check engine light on for some time now. Truck keeps truckin tho its annoying seeing that cel

Bscanlon64 · Jan 12, 2014

ST-8 said:
No cats here with a check engine light on for some time now. Truck keeps truckin tho its annoying seeing that cel

What muffler(s) are you running? Do you think it would even be worth it/beneficial to keep the exhaust I have now with the addition of the y and no cat? Or do I need to get a higher flowing muffler?

Sent from my iPhone using Tapatalk

ST-8 · Jan 12, 2014

Just one si/so magnaflow. The y will help you as that's a real choke point in the exhaust. I may of missed it but what muffler you have? That won't be a big deal

Bscanlon64 · Jan 12, 2014

I have a flowmaster something or rather. Single in/dual out. The typical truck exhaust.

Sent from my iPhone using Tapatalk

Bscanlon64 · Jan 12, 2014

Wondering if I need to upgrade my muffler.

Sent from my iPhone using Tapatalk

Bscanlon64 · Jan 12, 2014

moparman said:
Youll lose some of the low end power, the exhaust will also get rather loud as well. You can fake the computer into thinking the cats are still there by spacing the downstream oxygen sensors

Sent from my Galaxy S3 using Tapatalk 2

How many cats are there? I figured there was one off each header bank (precats if you will) then one after the y pipe. Looks to me like there's 2 before the y? I'm confused as where to put the oxygen sensors.

Sent from my iPhone using Tapatalk

ST-8 · Jan 12, 2014

2 cats 4 o2 sensors 2 before 2 after the cat

ATXHEMI · Jan 12, 2014

I have basically the same setup as ST-8 headers ORY and no cats. I have hiflow mags in my garage but haven't had them installed. Besides our emission check the smell is why I'm putting them back. It is strong and overwhelming when stoppedwith the windows down. I haven't noticed a big loss in low end and I drive around with my cutout open most of the time.

Bscanlon64 · Jan 12, 2014

ATXHEMI said:
I have basically the same setup as ST-8 headers ORY and no cats. I have hiflow mags in my garage but haven't had them installed. Besides our emission check the smell is why I'm putting them back. It is strong and overwhelming when stoppedwith the windows down. I haven't noticed a big loss in low end and I drive around with my cutout open most of the time.

Hmmm. Maybe I'll just leave the cats for now and delete the muffler? I want better sound! Is it gonna be too loud with a muffler you think?

Sent from my iPhone using Tapatalk

ST-8 · Jan 12, 2014

Before I did my exhaust I had the stock exhaust with a muffler delete an boy that truck droned like hell!

Bscanlon64 · Jan 12, 2014

ST-8 said:
Before I did my exhaust I had the stock exhaust with a muffler delete an boy that truck droned like hell!

Well, **** haha. Looking to get louder, while probably maintaining the cats! Any other options?

Sent from my iPhone using Tapatalk

ATXHEMI · Jan 12, 2014

Cutout before the muffler. Loud all the time can suck. Loud with a headache is painful. Open cutout when you want loud. Close it when you don't. Best of both worlds.

Bscanlon64 · Jan 12, 2014

ATXHEMI said:
Cutout before the muffler. Loud all the time can suck. Loud with a headache is painful. Open cutout when you want loud. Close it when you don't. Best of both worlds.

Aren't electronic cut outs like $400+?

Sent from my iPhone using Tapatalk

ST-8 · Jan 12, 2014

That's what you wanna do. Trust me you'll get annoyed of that loud ass **** from time to time

Catalytic Converter.

Member

Senior Member

Senior Member

Member

Senior Member

Member

Senior Member

Member

Senior Member

Member

Member

Member

Senior Member

Senior Member

Member

Senior Member

Member

Senior Member

Member

Senior Member

Similar threads

Forum statistics

Share this page