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NPP Mufflers

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Old Aug 12, 2015 | 04:57 PM
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Default NPP Mufflers

Would a pair of 2012 GS NPP mufflers that the axle over part was cut off fit my 2007 base? The NPPs were cut at the mufflers. Should I be able to get a muffler shop to cut mine and weld the 2012 NPPs on? Any problems? Thanks
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Old Aug 12, 2015 | 05:55 PM
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Yup. If you're using your over the axle pipes or having new ones made you shouldn't have any problems. I just installed a set of 2013's on my 06. The exhaust shop just modified the ends slightly on the over the axle pipes. I was able to use the 2013 pipes.
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Old Aug 13, 2015 | 10:51 AM
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Default NPP or Bi Mode

Looking to buy mufflers but not sure what this is? NPP or Z06 Bi Mode. Can't find this number anywhere. Part number 252088 and 252087
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Old Aug 13, 2015 | 11:15 AM
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Maybe this old thread will help
https://www.corvetteforum.com/forums...exhaust-s.html
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Old Aug 13, 2015 | 06:44 PM
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Those should be NPP from 2008 model. There should be an 8 digit number on there somewhere. May be hard to see, but it's the actual part number and we could confirm the fitment. If these are indeed from an 08, they will fit 05-08 models without modification.

Last edited by Xtremespeed; Aug 13, 2015 at 06:46 PM.
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Old Aug 13, 2015 | 06:52 PM
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Default NPP Mufflers

You do realize there is more to add if you want them to actually be operational, correct? You will find a few different methods for that by searching here on the forum.
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