nastang87xx
Well-Known Member
- Thread starter
- #16
It's not good for your exhaust valves either from the timing being retarded so far. There is actually a good reason as to why high performance engines do exhibit SOME pops and bangs on shifts and coming off the throttle. But any more after a moment or two once the throttle body shuts is poor tuning or your car isn't up to temp yet.
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