Hissing sound after HFCs

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  #16  
Old 02-11-2009, 06:38 PM
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damn That sucks, where is blueslate, I need to ask him if he has it with his FI exhaust. Lol. If not I'll go get the Magnaflow Xpipe and hopefully it'll get rid of it.
 
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Old 02-11-2009, 06:53 PM
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I have the same exact sound. I learn to live with it, but still trying to come up with a solution...nothing yet. Will be keeping an eye out on this thread. Let us know what u do Csquared
Just to let some of u doubtful guys know that i love the sound of my car. All i have is the Berk HFC's with stock exhaust no intakes. Everytime i start it, drive off, and WOT...there are no words to explain the lovely sound of my exhaust.
 
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Old 02-11-2009, 07:29 PM
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is the "hiss" easily drowned out by the radio?
 
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Old 02-11-2009, 09:45 PM
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yeah you can drown it out with the radio, The sound of the exhaust is great if you can get rid of the hiss. hahahaha. but my engine with my intake is so loud that I can't hear the exhaust, if i go wot but i can hear the hiss hahahaha.
 
  #20  
Old 02-11-2009, 09:57 PM
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well it turned out Csquared that it was air leaking out and some major problem.. stuck the car up on a lift and found out it was my OEM y pipe rattling around!! great huh now i have to spend another 165 to buy an aftermarket Y pipe!! yes!!! oh well
 
  #21  
Old 02-11-2009, 10:01 PM
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Wait so if we stop the y pipe from rattling it'll be gone? and you also had leaks? but the sound is the y pipe rattling around right? Because the noise doesn't sound like rasp. I wonder if we went up there and wrapped up the y pipe if the noise would still be there. There is a guy on myg37 has an X pipe and it still made this sound..... WE NEED A FIX! I HATE IT!
 
  #22  
Old 02-11-2009, 10:06 PM
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well im gunna try everything befor buying a new pipe...im gunna try and rap it and maybe ask this exhaust guy to weld a peice to brace it but since its moving soooo rapidly when i punch it , it sounds like a rice rocket lol..from what i could tell i had no leaks,.
 
  #23  
Old 02-11-2009, 10:08 PM
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ps mine are test pipes i dont know big of a differnce test pipes would be. but DEF THAT DAM Y PIPE!!! !!!Im guNNA JUST CHOPE IT OFF!!!!! lol
 
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Old 02-11-2009, 10:22 PM
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Lol Keep us posted yeah? Lol chop it off and have it like the touring cars have the exhaust come out next to the front of the passenger door and driver door hahahaa.
 
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Old 02-11-2009, 10:25 PM
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yea!!!! ahah im gunna try and expeirement with it tommorow...if i find a solution to that Y pipe ill post here or the thread i started in g35coupe. forum.
 
  #26  
Old 02-11-2009, 10:26 PM
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^ thanks man, can you post the link to the thread here? Also would it be because we have such restrictive Y pipes and mufflers that the pipe is vibrating so much as the air through the cats travel so much faster?
 
  #27  
Old 02-11-2009, 10:36 PM
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yea sure i will post it up
 
  #28  
Old 02-12-2009, 01:35 PM
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Wait all of you with the Hissing do you have Berks? Or FI? maybe it's the bar that holds the 2 pipes together, FI doenst' have that.
 
  #29  
Old 02-19-2009, 09:33 PM
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I realised I get the sound when i'm accelerating too, it's much harder to hear because of the engine and exhaust noise, is that normal?!
 
  #30  
Old 02-20-2009, 10:20 AM
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Yes the nosie is normal I had it also and all the time, At WOT the noise was of course louder and mu mufflers rattled aslo.. or that tinny sound.
 


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