Quote:
Originally Posted by RoshDawg
For the 911, there's something called a gundo hack that you can do to your exhaust to make it like the PSE (you just can't turn it off) and it only costs a couple hundred bucks for a muffler shop to do it.
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Carnewal modifies the 987 exhaust for far less then then the cost of the PSE...you get an always on exotic, drone free sound. Did mine last month...wish i did it last year

Cantrell motorsports does the mod in the US.
Not sure if the 981 muffler has the same feature but if it does it should be a matter of time before they modify the 981 muffler as well.
- b