Popular Post dds92780 Posted May 12, 2015 Popular Post Share Posted May 12, 2015 Okay so i have been wanting/needing new exhaust for my truck. I wanted to get a shiny 5 in 6 out muffler from iowa 80 but i could not figure out how to get it from the flexpipe to the muffler when i have 4 inch pipe. Sure i could of probably got reducers and expanders to go from 4 inch to 5 inch but the stock exhaust pipe just before the muffler is tucked nicely in between the hydraulic hoses making it impossible to fit a 5 inch pipe for an RD. So what did i do?Well first i called mack and wanted to even see if i could get a shiny stock pipe . It would of been 800 dollars IF it was even available anymore. So i ended up getting the stock pipe for 479 dollarsI then got another stock muffler made by donaldson that is high flow 51 inches 4 in 5 out. Paid 170 dollarsI then took my muffler and my pipe over to cpc powdercoating in crest hill to get ceramic powder coated so that i would have a shiny piece that i can polish if i want. its not quite the same as chrome or stainless steel but i had no choice or experience how to get a nice 5 inch inlet and 6 inch outlet so i stuck with the stuff i ordered. It took about a month to get it done but 100 dollars later i ended up with the pictures you see below. the muffler is coated but has a clear coat on it so its not SUPER shiny but looks way better than the stock galvanized color others get. yes chrome would look better but i guess this isnt bad. I also ended up painting my brackets gloss black since i couldnt get shiny brackets either. Damn old mack stuff lol you gotta improvise!!! What do you think??? 9 Quote Slow and Steady Wins the Race! Link to comment Share on other sites More sharing options...
41chevy Posted May 12, 2015 Share Posted May 12, 2015 I used Powder coat thermal coating on my piping on my turbo and air charge cooler plus the headers and exhaust on my race car. Not chrome but never dicolors from heat, no rust and no maintenance except a spray and wipe down. You'll be happier in the long run. Paul Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment Share on other sites More sharing options...
carlotpilot Posted May 12, 2015 Share Posted May 12, 2015 whats not to like about that looks good Quote Link to comment Share on other sites More sharing options...
Timmyb Posted May 12, 2015 Share Posted May 12, 2015 That looks fantastic. I'd be happy with them results. Quote Link to comment Share on other sites More sharing options...
mrsmackpaul Posted May 12, 2015 Share Posted May 12, 2015 yep top job looks a lot better than mine I must start doing some work on the truck Paul Quote Link to comment Share on other sites More sharing options...
85snowdog Posted May 12, 2015 Share Posted May 12, 2015 I would be very happy with that on any one of my Macks. Good job!!! Quote Keith Link to comment Share on other sites More sharing options...
Mackdaddy2030 Posted May 13, 2015 Share Posted May 13, 2015 Looks AWESOME!!!! Quote Link to comment Share on other sites More sharing options...
gearhead204 Posted May 13, 2015 Share Posted May 13, 2015 looks like stainless without the price......NICE! 1 Quote Link to comment Share on other sites More sharing options...
Vladislav Posted May 13, 2015 Share Posted May 13, 2015 Good job I'm going to do about the same on my R.That Donaldsn 4 to 5 muffler is waiting for me on the local dealer's shelf together with the stack.My case seems a bit easier than yours since I don't need to clear up the fuel tank so I'm going to use a part off a dump truck stack wich is Z formed. It's 4 inch and could be put below the muffler. I bought the chrome plated one from ebay by a chance.The muffler painted silver looks neat, hope that powder coat will keep its look as long as everybody said.Thank you for sharing the experience. 1 Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment Share on other sites More sharing options...
dds92780 Posted May 16, 2015 Author Share Posted May 16, 2015 Thanks a bunch guys! Quote Slow and Steady Wins the Race! Link to comment Share on other sites More sharing options...
felicello122 Posted May 17, 2015 Share Posted May 17, 2015 Looks like a super liner bracket and shield on your rd, my rd came with that skinny bracket that is part of the rear cab brace that runs across the frame, very flimsy even with the diagonal bar on it, the muffler is moved forward and the door just clears, your setup looks way nicer Quote Link to comment Share on other sites More sharing options...
randyp Posted May 17, 2015 Share Posted May 17, 2015 Wow! Good work my friend! Amble off down here to Texas and help me with mine, while your wrenching on it, I will go catch us a fresh pig and throw on cooker, maybe a side order of fried buzzard wings too. randyp 1 Quote Link to comment Share on other sites More sharing options...
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