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2017 GREEN GO HELLCAT CHALLENGER
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While I have the 392, I disliked how the valves would close and ruin the cold start sound. I installed the Z Auto modules and couldn't be happier. (y)
what's the website for those, I'm interested. Thx in advance
 

· Premium Member
2017 GREEN GO HELLCAT CHALLENGER
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1,013 Posts
I think I like this product better than the MFER-1-EXTREMES i was looking at . thanks for the info
 

· Premium Member
2017 GREEN GO HELLCAT CHALLENGER
Joined
·
1,013 Posts

· Premium Member
2017 GREEN GO HELLCAT CHALLENGER
Joined
·
1,013 Posts
Yes, I didn't get any codes when I installed them. And the valves stay open all the time.
End of season I had a code come on for the exhaust valves and didn't do anything yet.
 
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