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Old 06-04-2011, 12:05 PM   #1
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TV Muffler Mods

Has anyone out there done any exhaust mods to their TV such as dual exhaust? I was wanting to go with "CAT" back duals, and just wanted to know what others have done and with what results.
Thanks,
Jay
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Old 06-04-2011, 05:13 PM   #2
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I went the Flowmaster route on my 04 HD2500. Same gas mileage, didn't feel any more power but man was it noisy. I saved that Flowmaster to remind me not to believe advertising again!
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Old 06-05-2011, 08:57 AM   #3
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I went the Flowmaster route on my 04 HD2500. Same gas mileage, didn't feel any more power but man was it noisy. I saved that Flowmaster to remind me not to believe advertising again!
Those mufflers are directional specific.. did you put it on facing the right way? They will add sound but it should not be to bad... I added a MBRP turbo back to my truck.. got better mileage with it as long as I can keep my foot out of it..
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Old 06-05-2011, 11:26 AM   #4
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Those mufflers are directional specific.. did you put it on facing the right way? They will add sound but it should not be to bad... I added a MBRP turbo back to my truck.. got better mileage with it as long as I can keep my foot out of it..
Yes it was vehicle specific and only fits 1 way. Oh by the way I am ASE certified with 30 years experience. Not bragging but do mechanic work daily.
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Old 06-06-2011, 02:44 PM   #5
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Well on my 98 chevy I put a 50 series Flowmaster on and it sounded great did not notice any difference in power. Now my son put 40 series flowmasters on his truck and that was loud dont know about any power change. But on my 04 CTD I removed cat and muffler and put on a MagnaFlow muffler sounds good and will bark up hill under load but not to bad but throttle response improved and I think a little more power and better fuel milage.
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Old 06-06-2011, 11:57 PM   #6
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If you are looking for more power or better mileage just save your money and put it in the tank. We put a $400+ system on our old Dodge and then re-dynoed it. There was no difference that the dyno could find. The mileage didn't improve either. On the plus side-----it was a lot louder.
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Old 06-07-2011, 08:59 AM   #7
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Party, I think if you advise what type fuel you burn some of us may be more able to help. Specific vehicle that you have would possibly get you more specific responses as well unless I missed it somewhere.
Here are the results for my TV.
I upgraded my 03 Ford 6.0 Powerstroke with a 4" turbo back exhaust from Magnaflow. The entire exhaust is 4" back unlike some kits which only have a 3.5" downpipe. Factory down pipe was about 2.75" in some areas. I lowered my EGT's by about 200 degrees and improved my fuel by 2.5 MPG without tunes. I did not delete the Cat which in an option but I did not want to void my warranty or have state issues. It sounds great and gave me what I wanted. DIY cost is about $375.00 for SS on an 03-04 rig.
As for payback I know it's not much with only about 2.5MPG but EGT's kill these engines which was more my concern.
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Old 06-07-2011, 09:13 AM   #8
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I am considering adding a turbo back exhaust (with the cat gutted) on my 03 Diesel as well. I don't expect a large increase in mileage, but the lower EGT's and better turbo spooling would be well worth the investment. I do one major thing to my Powerstroke a year, and 2012 will likely be exhaust.
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Old 06-07-2011, 09:17 AM   #9
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I run straight exhaust on my 95 powerstroke, turbo spools up quicker and has that nice sound to it. Throttle response is better too, added a chip but I have yet to get it out and do some testing for fuel mileage.
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