Quote:
Originally Posted by onfireX5
JB4 is being tested. I'm tempted to have the local exhaust shop cut off the secondary cats to listen to the sound difference.
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After going through what I went through with my F80 due to JB4, and having to shell out 2K for repairs plus not having my car for 5 months almost all because of a JB4, safe to say I refuse to do It again.