ArdWrknTrk Posted March 3 Share Posted March 3 I just checked, unfortunately they don't. They have the opposite, which is 3" inlet and two 2.5" outlet ? Is what I am doing not recommended ? I'm actually copying the factory setup from the 86 Bullnose. How loud do you want it? I have a giant school bus muffler with dual 2 1/2 in and 3" out. I think it's from a 1975 international 455. I wish they still made it. Link to comment Share on other sites More sharing options...
Gary Lewis Posted March 3 Share Posted March 3 I just checked, unfortunately they don't. They have the opposite, which is 3" inlet and two 2.5" outlet ? Is what I am doing not recommended ? I'm actually copying the factory setup from the 86 Bullnose. I don't know if the Magnaflows are directional. I'd call them and ask. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted March 3 Share Posted March 3 How loud do you want it? I have a giant school bus muffler with dual 2 1/2 in and 3" out. I think it's from a 1975 international 455. I wish they still made it. Bear River has a good selection of mufflers, converters and fittings. Link to comment Share on other sites More sharing options...
viven44 Posted March 3 Author Share Posted March 3 I don't know if the Magnaflows are directional. I'd call them and ask. Good point, i'll do so. Link to comment Share on other sites More sharing options...
viven44 Posted March 3 Author Share Posted March 3 How loud do you want it? I have a giant school bus muffler with dual 2 1/2 in and 3" out. I think it's from a 1975 international 455. I wish they still made it. I want something with sound resembling new factory Truck/SUV sound. Wife would prefer driving it that way. Link to comment Share on other sites More sharing options...
viven44 Posted March 3 Author Share Posted March 3 How loud do you want it? I have a giant school bus muffler with dual 2 1/2 in and 3" out. I think it's from a 1975 international 455. I wish they still made it. Hey look what I found when I searched for dual inlet single outlet mufflers! Something like this Walker 22822 is exactly what I was looking for. https://www.ford-trucks.com/forums/1219369-dual-inlet-single-outlet-muffler.html I am also planning to weld a flange so its easy to install and uninstall for maintenance. Link to comment Share on other sites More sharing options...
Gary Lewis Posted March 3 Share Posted March 3 Hey look what I found when I searched for dual inlet single outlet mufflers! Something like this Walker 22822 is exactly what I was looking for. https://www.ford-trucks.com/forums/1219369-dual-inlet-single-outlet-muffler.html I am also planning to weld a flange so its easy to install and uninstall for maintenance. Cool! Link to comment Share on other sites More sharing options...
viven44 Posted March 3 Author Share Posted March 3 Cool! Well I forgot to state the bad part... that particular muffler has been out of stock for a while.. So i'm still looking Meanwhile, here is the "muffler" that is on the donor truck. Because this donor truck is all original, something tells me it’s a catalytic converter. Can someone confirm if what I'm looking at is a catalytic converter and not a muffler ? or is the only way to be sure is to send a camera through it and look for honeycombs ? Link to comment Share on other sites More sharing options...
viven44 Posted March 3 Author Share Posted March 3 How loud do you want it? I have a giant school bus muffler with dual 2 1/2 in and 3" out. I think it's from a 1975 international 455. I wish they still made it. Is this one similar to the school bus muffler you have ? https://www.amazon.com/Walker-21533-Quiet-Flow-Stainless-Muffler/dp/B001DR7VTC#customerReviews Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted March 3 Share Posted March 3 Well I forgot to state the bad part... that particular muffler has been out of stock for a while.. So i'm still looking Meanwhile, here is the "muffler" that is on the donor truck. Because this donor truck is all original, something tells me it’s a catalytic converter. Can someone confirm if what I'm looking at is a catalytic converter and not a muffler ? or is the only way to be sure is to send a camera through it and look for honeycombs ? It's also probably longer than your entire '78 Bronco. I bought something that would fill the gap between stock head pipes and the sprung hanger on my truck. Link to comment Share on other sites More sharing options...
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