TSP Catless headers and MBRP axle back

GreatWhiteLT · 06-20-2019, 10:46 PM

So as of yesterday the car got TSP 1 7/8th TSP catless headers, I love the way the car sounds and it runs amazing (thanks to HPA) the only thing is when it’s going from 2-3 and building RPM’s it sounds like a flutter from the AFM valves possible. I do still have the stock mid pipe but with the AFM turned off. Do I have to unplug the harness from the AFM valves to stop them from fluttering or having some kind of effect on the sound? If it helps to take a video I can put one in the morning. This community is amazing and hopefully someone can help me out!

Edit: Should also say the car is an A8 and got trans tuned and runs full E85, not sure if it has anything to do with it but this is the first car I’ve done mods to this extent to. Thanks all!

06-20-2019, 10:46 PM	#1
GreatWhiteLT Drives: 2016 Silver Ice Metallic SS Join Date: May 2017 Location: South Jersey Posts: 196	TSP Catless headers and MBRP axle back So as of yesterday the car got TSP 1 7/8th TSP catless headers, I love the way the car sounds and it runs amazing (thanks to HPA) the only thing is when it’s going from 2-3 and building RPM’s it sounds like a flutter from the AFM valves possible. I do still have the stock mid pipe but with the AFM turned off. Do I have to unplug the harness from the AFM valves to stop them from fluttering or having some kind of effect on the sound? If it helps to take a video I can put one in the morning. This community is amazing and hopefully someone can help me out! Edit: Should also say the car is an A8 and got trans tuned and runs full E85, not sure if it has anything to do with it but this is the first car I’ve done mods to this extent to. Thanks all!

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