I was next to a guy with a 7.3 with straight pipes that went up the back of the cab. He seemed to like it but he couldnt hear a word I said to him. I dont think the removal of a muffler would make a big difference until you installed a turbo system. I dont know what the state laws are in your area, but up here there should be something to act as a noise attenuating device. Good luck. Bill
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2000 super duty f-350 crew cab with training wheels, ats flip chip controller - hang on to it ! I did the air intake too - best thing since sliced bread.
I am runnung a 3 inch pipe with no muffler straight out under the rear bumper,sure its loud when you hit it hard but cruising along you would never know from inside the cab.I have had people tell me when im running down the road going fast enough for it to be in OD and at between 1100 and 1400 rpm they swear its a harley coming
Mine had a single glasspack which did nothing. So I ran 2 straight pipes all the way out the rear and its quiet in the cab. As for outside, it doesn't sound to offensively loud, but its louder than a Honda Civic.
on my 7.3L wich is for sale i ran dual 2 in pipes and put cherry bombs on it and at the end i had them curved out to the side behind the tire instead of straight bck to the bumper and i added some huge echo tips that was 4 in wide and 12" long there is nothing like the sound of car alarms going off as you drive by
To answer your question, it will run better.
A three inch exhaust with a straight through muffler will make it run even better. It will make some noise, but it will sound like a truck.
On the deceleration side it will sound like it has a jake on it till it is under 2200 RPM.
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86 F250 HD 6.9 IDI ATS turbo "not exactly" stock 4x4 T19 BW1345 3.55LS both ends D60 front, 10.25" Sterling rear, ram air, dual stacks.
That is to tell you how hot you are getting the motor inside the combustion chamber. Any diesel motor turbo'd or that has the fuel cranked up can melt pistons. When the exhaust gasses are at 1250 degrees in the exhaust manifold you are melting pistons and turbo's which puts you in danger of major dollar outlay.
The pyrometer tells you that it is time to lighten your right foot or your wallet will get a lot lighter.
I have a turbo and I keep mine under 1100 degrees.
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86 F250 HD 6.9 IDI ATS turbo "not exactly" stock 4x4 T19 BW1345 3.55LS both ends D60 front, 10.25" Sterling rear, ram air, dual stacks.
I got the R3607T which is color coded and you also need the R650S thermocoupler which can be installed in the drivers side exhaust manifold without any extra lead wire. I drilled the manifold right above where the exhaust pipe hooks on and tapped the hole for the thermocouple to thread right in.
I also got the R5613 30 PSI boost gauge to monitor turbo boost pressures.
I also used this guage pod to mount the pyrometer and boost guage on the windshield pillar so they were easy to see. Item number was 15300 http://www.usdieselparts.com/pages.cfm?id=86
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86 F250 HD 6.9 IDI ATS turbo "not exactly" stock 4x4 T19 BW1345 3.55LS both ends D60 front, 10.25" Sterling rear, ram air, dual stacks.
