[mustangivore]

1. How does the JB4 compare with PPK in terms of the burble (pop) exhaust note. I love it on my PPK but read somewhere that the JB4 has a fair amount too? Guessing BMS has not tuned it somehow as an option.

2. Really like the BMW PE but is it true that it does little for me in terms of running more powerful tunes/maps, since it's just a muffler exhaust upgrade? I run 93 all the time but map 2 may still be a bit much to run safely.

I've read some opinions/experiences based on these questions but would be interested to hear some more recent ones. Thanks.

[Knobi]

I actually have all three + DP
Here's the breakdown in the order they were installed:

PPK + PE = Very nice burble and growl, barely notice any pop.

JB4 stacked with PPK and PE = Louder growl and burble specially when downshifting

JB4 + PPK + PE + DP = Neighbors hate me at cold start. Loud growl, insane burble when downshifting and POP that usually scares pedestrians

Hope this helps

[mustangivore]

Originally Posted by Knobi

JB4 stocked with PPK and PE = Louder growl and burble specially when downshifting

That's great to hear. I understand how the PE could produce even more awesomeness and glad to hear it I think , but (pleasantly) surprised to hear about the burble! I'll ask here and in Terry's N54tech forum if the burble is being piggybacked off the PPK (now stock) flash or enhanced independently by BMS's own tuning, unless someone here knows. Just curious - if it sounds even better, I don't care who's responsible for the burble.

Originally Posted by Knobi

I
JB4 + PPK + PE + DP = Neighbors hate me at cold start. Loud growl, insane burble when downshifting and POP that usually scares pedestrians

Hope this helps

Lol. Thanks for the input!