Z4M Muffler Delete vs RPI Exhaust

[Syed///M]

Came across this thread while I was searching for information regarding RPI mufflers with SS straight pipes. I am planning to run SS straight pipe, with Rogue X pipe and Rpi mufflers w/silencers. Anyone wiling to share their experience with these mufflers, after a year or two of ownership?

[RossBMWZseries]

My mods have remained the same as previously explained in this thread so the sound is the same and I’m still enjoying the sound. Hasn’t gotten annoying after almost 2 years of running the RPI’s. They still sound incredible, my hearing is still just as good, drone remains the same also.

I did get pulled over by 2 cops and 1 state trooper one time. They stated they heard me flooring it about 2 miles out and heard the sound coming towards them so they waited for me. I’d say that’s the only con about the RPI’s; you can’t really have fun without anyone hearing you

[filtercoffee]

I attempted to remove the OEM mufflers without jack stands last night - on low profile ramps that give 2-3 inches of lift. Lying on a yoga mat for comfort. It was pretty annoying to remove the hardware for the diffuser, plus I have a rear diffuser attached to the bumper. But do-able. However I got stuck trying to remove the bolt joining the muffler to the x-pipe, mine were seized on pretty good. I didn't have great leverage working under the car and I didn't have an impact. Probably going to let the shop do this one.

Posting in case others go into this thinking it'll definitely be easy - it might not!

[vt100]

Originally Posted by filtercoffee

However I got stuck trying to remove the bolt joining the muffler to the x-pipe, mine were seized on pretty good. I didn't have great leverage working under the car and I didn't have an impact. Probably going to let the shop do this one.

Posting in case others go into this thinking it'll definitely be easy - it might not!

When dealing with exhaust bolts you should always be ready to cut them off with a dremel