J-Pipe + HFPC or Stock?
Instructor
Joined: Aug 2016
Posts: 175
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I went to a local shop. Any resonator will do. It’s just a hollowish pipe that is basically a tiny muffler in the mid section of the car that most exhaust kits delete. The drone is still in the rear due to the exhaust tips but goes away fast. Any muffler shop will have a large resonator. I have magnaflow mid exhaust that came with this revel touring exhaust kit. I’m sure they’re all magnaflow. But the mufflers are all the same. High flow and no noise. It’s your lack of resonator and large exhaust tips (if they’re large as the revel exhaust which are causing the issue)
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Instructor
Joined: Mar 2015
Posts: 247
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From: New York
Yes mine are magnaflow large tips for sure. It’s the endless rpm exhaust with a vibrant super quiet muffler in the middle. I’ve always thought about getting another welded on there but just never got around to it. From what I’ve seen, a change in mufflers will make the biggest difference. I’d like to keep the quad look if I can!
Instructor
Joined: Aug 2016
Posts: 175
Likes: 52
Mine are single large tips on each side. You might not have an issue with yours quad tip, I would imagine they're smaller but 4 of them which I think would help distribute the air better keep the noise low. Also you would 100% be able to feel it if the tips were causing some droning. You should just add the resonator back in and you'll see a huge difference.
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Instructor
Joined: Mar 2015
Posts: 247
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From: New York
[QUOTE=Ltfa182;16985780]That makes sense. I do think it’s the mufflers for sure but if adding a second resonator would help, it may be worth a shot. If I did that, I’d just hope for the best and deal with it haha. Or maybe I’d just find a stock exhaust instead chopping up this one. I don’t mind giving up a few ponies in exchange for no drone.[/QUOTE
in my experience the exhaust changed nothing but I drive slow. I only got the exhaust because mine broke apart. High end RPM is where the PCD and catback help. Do you feel a drone under your driver seat? It isn’t subtle. You would feel it. The resonator took that out for me. If you don’t feel that drone it might be something else like the PCD. Because I don’t have PCD I can only imagine how bad that would make my drone.
in my experience the exhaust changed nothing but I drive slow. I only got the exhaust because mine broke apart. High end RPM is where the PCD and catback help. Do you feel a drone under your driver seat? It isn’t subtle. You would feel it. The resonator took that out for me. If you don’t feel that drone it might be something else like the PCD. Because I don’t have PCD I can only imagine how bad that would make my drone.
Instructor
Joined: Aug 2016
Posts: 175
Likes: 52
[QUOTE=OnlyDaanish;16985782]
I do feel the drone under my driver seat. Right around 2-3.5k rpms is where the drone is at. The PCDs definitely were part of the problem. The drone went down a bit when I went to hi flow cats but it’s still there for sure. Yeah it’s definitely not subtle. I hear the drone in my dreams
That makes sense. I do think it’s the mufflers for sure but if adding a second resonator would help, it may be worth a shot. If I did that, I’d just hope for the best and deal with it haha. Or maybe I’d just find a stock exhaust instead chopping up this one. I don’t mind giving up a few ponies in exchange for no drone.[/QUOTE
in my experience the exhaust changed nothing but I drive slow. I only got the exhaust because mine broke apart. High end RPM is where the PCD and catback help. Do you feel a drone under your driver seat? It isn’t subtle. You would feel it. The resonator took that out for me. If you don’t feel that drone it might be something else like the PCD. Because I don’t have PCD I can only imagine how bad that would make my drone.
in my experience the exhaust changed nothing but I drive slow. I only got the exhaust because mine broke apart. High end RPM is where the PCD and catback help. Do you feel a drone under your driver seat? It isn’t subtle. You would feel it. The resonator took that out for me. If you don’t feel that drone it might be something else like the PCD. Because I don’t have PCD I can only imagine how bad that would make my drone.
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