Quote:
Originally Posted by skongolf
Gonna do whatever they say at the shop to get the best performance. I didnt think my exhaust had the butterly valves.
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I just saw you have a 2011 and I think the earlier models didn't, but I can't recall when they started using them.
When I get my work done, I'm going 3in from the cats all the way to the muffler replacing the resonator/butterfly valves with a x-pipe. I will then also be getting a tune to stop the O2 censors for going off all the time. Plus, the tune will get rid of the AFM (which is what the butterfly valves were to help with).
joe...
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ARH LTH/HFC/Legato muffler, RDP Custom Tune, K&N Blackhawk CAI, Bigworm Blackout kit, ZL1 Rims, Phantom Grills, VMAX PTB