C6 Corvette Concept 8-4-1 Headers, Midpipe, Ultimate NPP Ultimate NPP - Valved Exhaust:Titanium - Concept 841 Fitment Concept 841’s 8-4-1 header design

Concept 841’s 8-4-1 header design unlocks an entirely new personality from the LT2 and LT2-based platforms

The quick split into two separate pipes doesn't allow a thorough mixing of both banks

Secondaries- 2

3) The O2 sensors were previously only taking readings from one secondary (two banks)

Concept 841 V2 Ultimate NPP took everything from the successful V1 and pushed it further to truly separate it from the rest of the market

C6 Corvette Concept 8-4-1 Headers, Midpipe, Ultimate NPP Ultimate NPP - Valved Exhaust:Titanium - Concept 841 Fitment Concept 841’s 8-4-1 header designPermanently SOLD OUT The Ultimate NPP has been superceded by V2 C6 8 4 1 Headers V2 in development Fitment: Headers will fit all C6 Base GS Z06 ZR1 Midpipe will connect to our Ultimate NPP or any C6Z ZR1 fitment exhaust. We highly reccomend our Ultimate NPP if you want the ability to hear the screaming exotic sounds while still having the ability to reduce the sound level to manageable level Developed out of the desire to bring the sounds of 8 1 or