HHR SS Topics and information on the 2008-2010 Chevy HHR SS Turbocharged models.

Gutted 2nd Cat

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Old Mar 18, 2014 | 10:09 PM
  #21  
eaglefreak138's Avatar
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Joined: 12-04-2009
Posts: 463
From: Port St Lucie, Florida
Originally Posted by SS fan
It didn't change the sound much, turbo spools faster though. Lots of second hand exhaust gets sold in the classifieds, that's where I got the ZZP downpipe, your welcome to it for a mere 150.00. I never took it out of the box, I'm happy with the gutted second cat mod. These Flowmaster HP2 shorties sound good to me. I think Foxtrot raptor found a inexpensive muffler that sounder good, might pm him.
Nice. You have detailed pics of the cutouts in facia?
Old Mar 18, 2014 | 10:56 PM
  #22  
firemangeorge's Avatar
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Joined: 12-06-2009
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From: Alabama
Here's the HP2 shorty compared to the stock SS muffler. Big size difference.

Attachment 15971

Last edited by firemangeorge; May 30, 2014 at 11:07 PM.
Old Mar 18, 2014 | 11:22 PM
  #23  
SS fan's Avatar
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Joined: 10-09-2010
Posts: 14,420
From: Tacoma
I made a hole on the right to match the one on the left,(multi-master) you already have what I went off of..... It took a few check and recheck before I cut it out freehand, used the cutout to fill below. Planning on fiber-glassing it before we paint the cowl hood.




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