2015-2016 LML hiss/rumble idle

[Apptruck2020]

I always just change the timing at idle and command turbo closed for exhaust hiss sound. Just my .02

[Lennydmaxguy]

I always just change the timing at idle and command turbo closed for exhaust hiss sound. Just my .02

Getting hiss is easy. What we want to do is open the vanes for rumble at idle. I've never figured out how to do it consistently. I can get them to rumble in reverse, and when rolling, but not in park or in drive sitting still. I've seen what several of the big name tuners change, and I've done the same with no luck.

[Omega_5]

Getting hiss is easy. What we want to do is open the vanes for rumble at idle. I've never figured out how to do it consistently. I can get them to rumble in reverse, and when rolling, but not in park or in drive sitting still. I've seen what several of the big name tuners change, and I've done the same with no luck.

With the tables EFI has exposed, it will still command 35-55% vane, until the main tables take over. It will also cycle in to open loop mode at idle and periodically command 95% vane.
As MSC mentioned, there are an additional 15 tables that need to be modified the same way to get the full rumble effect.