General HHR Discuss anything related to the Chevy HHR that doesnt seem to fit into the more specific categories below.

Stainless steel exhaust system?

Old Nov 19, 2018 | 06:54 AM
  #11  
Ohiocruiser's Avatar
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Joined: 09-15-2013
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From: Cleveland. Ohio
Originally Posted by SwissHHR
Many thanks to all for the input!

On the stock 2.4 LT (manual trans), are the exhaust parts 2.25 inch or 2.50 inch? I guess all the exhaust parts (cat, pipe/resonator and muffler) should have the same diameter, shouldn't they?

Would a pipe with a Magnaflow resonator together with a quiet muffler prevent the "rumbling"?

Any recommendations for a quiet muffler?
http://www.trubendz.com/categories/tubing-kits/chevrolet/06-11-chevy-hhr.html
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