I'm putting dual exhaust on my 1997 Mazda B2300 with a Ford 2.3L


Asked by Jun 11, 2013 at 11:21 AM about the 1997 Mazda B-Series Pickup 2 Dr B2300 SE Standard Cab SB

Question type: Maintenance & Repair

I got the crazy hair the other day to put dual exhaust on my little pickup. Long story short,  
Will it affect the motor at all if I cut the catalytic converters out? Its got 2 Oxygen sensors
on it. But I'm pretty well done with the project. Any advice on this would be amazing. I'm

12 Answers

Tracy Hooks

You will get a "Check Engine" light and the computer may go into a "limp" mode (decreased performance). The second O2 sensor detects how the Catalyst is performing. Most muffler shops split the exhaust after the Cat for this reason.

1 out of 1 people think this is helpful.

put the splitter out to two AFTER all that smog jazz~ little tube cutting and welding...junior level welding~


So, what I should do is cut the cat in half, and take the back half and weld it back into the exhaust?

no one really looks UNDER there, I'm sure there is enough real-estate there....you could chop a couple of inches out of the existing system if you needed MORE room for the split----the chrome tips will look the same~! the last device in line is going to be your catalytic converter...start at the exit flange...'nuff room...it's a pickup!

No. don't touch the cat~

start your split at the exit flange...don't think there are ANY more sensors after that.

just like Tracy asserted, do the modifications AFTER the catalytic converter...this way will not affect the computer's performance...then will be simply decorative...could put glass packs or chrome tips or anything you want at that point.~

Tracy Hooks

Well, if you're in California, you have to smog check it every- other year and yes, they do look under the car. DON'T TRY TO CUT THE CAT.

1 out of 1 people think this is helpful.

everybody loves the "thrush" bird logo, they used to give them stickers when you bought a glass packed thrush~

Tracy Hooks

OOooohhhhh! Purdy!

1 out of 1 people think this is helpful.

get your welding rod at your dry cleaners...they've got an ample supply of wire hangers they'll give you for free...or next to free~

kids these days~

Your Answer

Add photo

Related Questions

B-Series Pickup

Looking for a Used B-Series Pickup in your area?

CarGurus has 251 nationwide B-Series Pickup listings starting at $1,935.


Search Mazda B-Series Pickup Questions

Mazda B-Series Pickup Experts

#1 BoholMark
Reputation 330
#2 FordNut
Reputation 250
#3 Tracy Hooks
Tracy Hooks
Reputation 210
View All

Related Models For Sale

Used Ford Ranger"
263 Great Deals out of 7,704 listings starting at $988
Used Toyota Tacoma"
628 Great Deals out of 30,530 listings starting at $2,850
Used Nissan Frontier"
429 Great Deals out of 20,749 listings starting at $2,500
Used Ford F-150"
3,272 Great Deals out of 216,641 listings starting at $1,500
Used Chevrolet S-10"
13 Great Deals out of 1,811 listings starting at $1,749
Used Dodge Dakota"
161 Great Deals out of 4,793 listings starting at $900
Used Dodge Ram 1500"
521 Great Deals out of 13,734 listings starting at $995
Used Nissan Truck"
127 listings starting at $4,900
Used Chevrolet C/K 1500"
1,136 listings starting at $2,400
Used GMC Sierra 1500"
1,025 Great Deals out of 56,906 listings starting at $2,300