Muffler Delete

[Biggdaddycurt]

I have a 2019 Ram 1500 5.7 V8 Hemi. I remove muffler for a better sound. When I rev the engine the RPM's goes up but very slowly comes back down. So when I go to rev the engine I really can't its just runs a high rev and doesn't come back down. Is this normal for not having a muffler?

 

[Treburkulosis]

It could be the computer confused at the lack of back pressure. Mine idles slightly different, but I am a 4th gen early model.

 

[audiophile]

Yes, most likely due to minimal back pressure. Best bet is a performance muffler that will give you the sound you want.

 

[hemihustlin]

its the emissions controls built into the PCM. very normal for any modern throttle by wire system. use whatever muffler or straight pipe you desire.