Fpp?
Thread Starter
Instructor
Joined: Sep 2018
Posts: 246
Likes: 8
Fpp?
Alright I know I will Be made fun of this! I’m hearing this is an option for an adjustable exhaust from the factory? Just bought an 06 vette and wondering how do I know if this option is on my car? Thanks lol
Team Owner
Joined: May 2004
Posts: 82,175
Likes: 1,319
From: McKinney TX
St. Jude Donor '21-'22-'23-'24
NPP, not FPP, not a GM option until model year 2008. It's the RPO (Regular Production Option) for Dual Mode Exhaust.
Last edited by Vette_DD; Oct 10, 2018 at 09:19 PM.
Burning Brakes
Joined: May 2000
Posts: 1,097
Likes: 191
From: Vienna VA
But I believe they won't open/close the valves automatically based on acceleration as the factory installed ones do. You'd need to add a manual switch.
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Le Mans Master
Joined: May 2015
Posts: 5,187
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From: Las Vegas Nevada
No Z06 has "NPP". "NPP" is an RPO code available on base and GS models. Yes, it is essentially the same item, but it is part of the Z06 package, and not an option. If you order a Z06, you cannot also designate NPP, although the car will come with the valves in the muffs.
Last edited by buckmeister2; Oct 11, 2018 at 10:10 PM.
Team Owner
Joined: May 2004
Posts: 82,175
Likes: 1,319
From: McKinney TX
St. Jude Donor '21-'22-'23-'24
No Z06 has "NPP". "NPP" is an RPO code available on base and GS models. Yes, it is essentially the same item, but it is part of the Z06 package, and not an option. If you order a Z06, you cannot also designate NPP, although the car will come with the valves in the muffs.
