catback exhaust hurt car?

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Jun 10, 2007 | 01:07 AM
  #1  
Ok i just put on my neuspeed catback, and it seems for some reason that the car is a little bit slower? Please help me out in anyway possible. I don't know what is going on with this, and Im dropping boost all the way to about 6-7 psi by redline. All input is awesome.

Where is also a good place to get a nice clutch kit? Do you think that sachs clutch with a light flywheel ok?
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Jun 10, 2007 | 02:19 AM
  #2  
RE: catback exhaust hurt car?

Quote:
Ok i just put on my neuspeed catback, and it seems for some reason that the car is a little bit slower?
Was it fast before ?

Quote:
I'm dropping boost all the way to about 6-7 psi by redline.
Yeah I think that little k03 can keep the boost at peak lvl till redline. What a shame!

Quote:
Where is also a good place to get a nice clutch kit? Do you think that sachs clutch with a light flywheel ok?
http://www.southbendclutch.com/
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Jun 10, 2007 | 03:03 AM
  #3  
RE: catback exhaust hurt car?
Yeah a little, I dont hear the turbo as loud now.....maybe its all in my mind or something?
thanks for all your help....how much boost should I be holding then?
what clutch should I get if Im going to do a full k04 kit, or gt28rs kit?
thanks!
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Jun 10, 2007 | 04:15 AM
  #4  
RE: catback exhaust hurt car?
if you are going with a k04 then a stage one should be fine, but it all depends how much power you plan on getting out of it. Any other BT I would go with the stage 2 just to be safe.

in terms of you boost I hold max boost until around 4800 and loseing about a 1 psi by redine. since you have a chip i would not expect your ost to ever drop that low, so my gues is you have a boost leak somewhere. Any codes or lights?
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Jun 10, 2007 | 11:03 AM
  #5  
RE: catback exhaust hurt car?
No codes or lights....what year do you have, and are you running a mbc, or n75 valve?
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Jun 10, 2007 | 11:36 AM
  #6  
RE: catback exhaust hurt car?
well, since you are only boosting at 6-7 psi, id say check for boost leaks, because you should be much higher then that with your giac chip... but the loss in power that you feel could also be explained by the bigger exhaust.. when you do something like that you loose power down low, and gain it up higher in the rpm band
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Jun 10, 2007 | 11:42 AM
  #7  
RE: catback exhaust hurt car?
no i boost up to about 15-16, but it really falls off to about 6-7....it seems that I might have a boost leak...im going to check everything today....thanks!
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