This is how I got rid of the drone on my Joe-Z exhuast
11-08-11, 11:42 AM
#1
This is how I got rid of the drone on my Joe-Z exhuast
I basically got a local shop to fabricate end pipes with stock mufflers. The switch between the two setups is as easy as lifting the rear end of the car and unbolting 4 bolts. The drone is COMPLETELY gone, and the noise level is very comparable to the stock setup.
I will have to do some dyno runs to document any change in power, but they only run I have with this setup didn't look promising, but that's mainly due to the K&N drop-in filter I had installed at the time.
I will have to do some dyno runs to document any change in power, but they only run I have with this setup didn't look promising, but that's mainly due to the K&N drop-in filter I had installed at the time.
11-08-11, 01:48 PM
#4
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Just a thought... if you want stock noise level, and you're using stock mufflers (Which would negate a lot of the free-flowing piping behind it), then why not stay with the full stock setup? Or just cut out the secondary cats and call it a day?
11-08-11, 02:53 PM
#5
^^^^Because, IMHO, the stock system is not very good. There is a severe restriction in the "Y" pipe in the stock axle back portion of the of the stock exhaust. And, the stock system is not a true dual system, but a two into one into two. For me, the purpose of an exhaust is to make power, and not rattle my teeth. In my youth, I've had noisy exhausts, but I think I've outgrown that. But, hearing a highly tuned V8 (not a V10) with a loud exhaust system sometime makes the hair on my neck stand up. I went to visit a friend in Charlotte VA last year and visited some of the NASCAR Shops, the sounds of those engines gave me goosebumps
My modified full dual system with the stock mufflers makes me smile when I walk behind it at idle, and my neighbors don't complain. Can't ask for more than that. And besides, the stock mufflers really aren't that bad. See the cutaway I attached.
Lou
My modified full dual system with the stock mufflers makes me smile when I walk behind it at idle, and my neighbors don't complain. Can't ask for more than that. And besides, the stock mufflers really aren't that bad. See the cutaway I attached.
Lou
11-08-11, 03:04 PM
#6
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^^^ Correct Lou...
Most baffled and/or chambered mufflers will cancel out sound waves to a more acceptable level.
The cut away photo of the OEM version is a good example of it..
It also will slow down the "Exhaust Gas Flow" outward... So it's not as free flowing as a straight muffler per se.
~ Joe Z
Most baffled and/or chambered mufflers will cancel out sound waves to a more acceptable level.
The cut away photo of the OEM version is a good example of it..
It also will slow down the "Exhaust Gas Flow" outward... So it's not as free flowing as a straight muffler per se.
~ Joe Z
11-08-11, 04:02 PM
#7
^^^^I agree, and for a low restriction exhaust system, I truly believe the JoeZ System is the best for the breed for the ISF. IMHO, the workmanship and materials used are amazing. I have seen and touched it, and it truly is the best of the breed However, for me, it's just too loud for everyday driving. My exhaust system is nowhere near as pretty, but with my PPE headers and Hi-Flow cats it gets the job done
Lou
However, for me, it's just too loud for everyday driving. My exhaust system is nowhere near as pretty, but with my PPE headers and Hi-Flow cats it gets the job doneLou
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11-09-11, 05:28 AM
#8
1) less noise/drone = happy neighbors and other car occupants
2) maintaining true dual exhaust vs. OEM setup
3) no major loss in performance due to the design of the stock mufflers; to be confirmed by dyno
3) 15/20 mins to switch between the two setups, which makes it super easy to switch between the two for car show days or whenever I want Joe-Z's exhaust sound back in my life, lol
11-09-11, 10:09 AM
#10
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^^^^I agree, and for a low restriction exhaust system, I truly believe the JoeZ System is the best for the breed for the ISF. IMHO, the workmanship and materials used are amazing. I have seen and touched it, and it truly is the best of the breed However, for me, it's just too loud for everyday driving. My exhaust system is nowhere near as pretty, but with my PPE headers and Hi-Flow cats it gets the job done
Lou
However, for me, it's just too loud for everyday driving. My exhaust system is nowhere near as pretty, but with my PPE headers and Hi-Flow cats it gets the job doneLou
Best Regards,
~ Joe Z
11-10-11, 06:30 AM
#14
The sound is pretty much like stock... I don't think I'll be able to pick up the subtle difference with a video, but I'll try.
Last edited by DS2k; 11-10-11 at 06:33 AM.