G37 Coupe

Need help making q60 louder

Old May 14, 2016 | 01:47 PM
  #16  
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A quick pull with Topspeed Pro 1 Axle Ba

IMG_2679.MOV

Here's how it sounded the day I got it installed.
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Old May 14, 2016 | 02:40 PM
  #17  
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Originally Posted by ArmansQ60
Attachment 120632

I have a topspeed pro 1 axle back. And these pictures are before i put on the extensions. The exhaust pipes were too short and were burning the bottom of the bumper and thats why i got extensions welded on. The topspeed pro 1 axle back is for 08-13 g37 coupes and even though the engine is the same, the piping lengths are different as I was told by a representative from Topspeed. At first I was content with the sound but now it only sounds good on certain days for some reason.

Thanks for the inputs
Ok. I would go with some HFC or you can swap out your resonators with some vibrant resonators.
Vibrant Performance .


adding a Y pipe doesn't do squat for sound. I have tested that theory myself.

This is just my 02 cents.
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Old May 14, 2016 | 05:19 PM
  #18  
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http://www.ebay.com/itm/391346414101?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
http://www.ebay.com/itm/331343125678?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
These are the two things that I've narrowed it down to.... Which one would you recommend? And would either one make a noticeable difference?
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Old May 14, 2016 | 05:30 PM
  #19  
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They're going to equally make a couple ponies and add some noise, make your pick man. Just be aware you will likely get a check engine light, you wont pass emissions or inspections if they require it and your car will stink without cats.. I absolutely recommend you get high flow cats, but its your car.
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Old May 14, 2016 | 07:48 PM
  #20  
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Originally Posted by Kris9884
They're going to equally make a couple ponies and add some noise, make your pick man. Just be aware you will likely get a check engine light, you wont pass emissions or inspections if they require it and your car will stink without cats.. I absolutely recommend you get high flow cats, but its your car.

Yep what kris said.
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Old May 16, 2016 | 12:30 PM
  #21  
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Looks like you have the axleback with resonators, which are tame and somewhat quiet. I would recommend HFC to make it a couple levels louder. Removing the OEM resonator will probably make your car sound raspy.
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Old May 19, 2016 | 11:05 PM
  #22  
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Thanks for all the inputs guys. I guess I'll go with the HFC's like you all suggested. Now the question is should i go with the resonated HFC's or the non resonated HFC's? Whats the difference between them?
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Old May 19, 2016 | 11:15 PM
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Test pipes - some rasp
Art pipes little less
Hfc less rasp than arts
And resonted hfc will have the least if any
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Old May 19, 2016 | 11:18 PM
  #24  
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Will check engine light go on with HFC?
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Old May 19, 2016 | 11:36 PM
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Originally Posted by ArmansQ60
Will check engine light go on with HFC?
Not likely but its always possible.
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Old May 20, 2016 | 09:16 AM
  #26  
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Originally Posted by ArmansQ60
Will check engine light go on with HFC?
Originally Posted by PNW_IPL
Not likely but its always possible.
Very unlikely, plus you'll save the ozone a bit and your hot date wont dump you for making her hair smell like chemicals. It gets nauseating man, and I love cars and the smell of race gas etc..
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Old May 20, 2016 | 08:27 PM
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so u added extenders at the tips? i wonder why since all g37s have the same exhaust except for the ipls
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