Bigdogtrucker Posted April 21, 2012 Share Posted April 21, 2012 Does a non turbo 673 make more power with a straight pipe or muffler?My B75 has a 4" exhaust with a long full muffler,not too loud at all.Was thinking about getting a straight setup also,wondering what others run mostly??? Quote Link to comment https://www.bigmacktrucks.com/topic/24618-exhaust-question/ Share on other sites More sharing options...
HeavyGunner Posted April 21, 2012 Share Posted April 21, 2012 I am guessing since your 673 is naturally aspirated that it would do it some good to have a little back pressure. Quote The problems we face today exist because the people who work for a living are outnumbered by the people who vote for a living.The government can only "give" someone what they first take from another. Link to comment https://www.bigmacktrucks.com/topic/24618-exhaust-question/#findComment-115347 Share on other sites More sharing options...
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