LOUD NOISES! Installing ARM Catted Downpipes On My F80 M3 (Plus Sound) 

Appreciate it bro 🍻 Gotta tell ya, the car is a different animal afterwards. Bit of a hassle, but worth it. Though I just put in the replacement downpipe and it's crazy how much easier it was the second time lol.

Thanks brother, much appreciated! 🍻

Fair.. I tried blending in mics from the trunk and cabin but I might do a follow up with the drive bys.

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-L6iOMVRsh94.htmlsi=1WftXmMA3DSp-YPO

Nice! Man when I first started really wanting a BMW, it was exactly this car. Sounds awesome.

Nice 👍 yeah I think the volume without secondary cats is fantastic.

Did you do them on yours? I’ve been trying to find a video of catted dp’s with a secondary cat delete (and stock comp exhaust). Hard setup to find a video of lol

@@_allenyang I have the Valvetronic Designs exhaust which gets rid of the secondary cats. If you wanted to keep the comp muffler you could just get catless mid pipes but you'd have to cut (which has the downside of not being reversible). I'm pretty sure I've seen a video of that before.

@@jgo.m3 makes sense. Leaning towards it! Appreciate the insight. Btw I’m in Delaware too, pretty sure I saw your f80 the other week. I just picked up my mineral white f80 last month from ottos

@@_allenyang nice! Yeah I think I saw you - I remember seeing a white F80 thinking "well that's new around here" lol. Very cool. There's actually another yas marina F80 in the same area (Hockessin) but his grill is chrome whereas mine is black. Anyway if you ever wanna catch up and compare notes on mods or whatever, let me know. Also watch out with (formerly) Otto's when it comes to service. I posted a video on it recently if you want the full story.

Thanks brother 🙏

Thanks brother! Sorry to hear you had a hard time with yours. Did you notice any rasp afterwards? I feel like there's a little bit there on the low end if I'm in a higher gear trying to get up to speed, but it's not terrible (certainly worth it lol).

@@jgo.m3 there was a small amount of rasp when down shifting and as you mentioned when getting up to speed. Slowly accelerating yes rasp mainly gears 2-5 but if I floor it no issues.

Exactly the same here. I guess a little rasp is unavoidable when you mess with down pipes.. especially with equal length mid pipes.

@@jgo.m3 I have same exhaust, I am 90% sure that even the owner or the guy that has done all their videos, had mentioned that the rasp never completely goes away but that it was/is great reduced. Like you I researched a few brands catted brands and honestly the deciding factor to go with ARM originally was emailing VD and finding out that was the downpipe they were/are using for their videos. Another thing that I wish someone had the time to do, would be to get sound clips of the different 200 cel cats. I am curios to see what factors truly change the sound, performance, etc especially when the price points vary so much. The ER are beautiful and fitment could be amazing but what if the sound was awful? The brand I am with now, has 3 letters, and almost identical price point you can figure this out of course. I will say the sound is deeper, which is ok still think ARM has the best sound, it also seems with this brand, the downpipes are more restrictive at lower rpms and not as free flowing. On a side note i did reach out to VD and asked them if they would be expanding their offerings to include downpipes and they said "not at this time". Anyway I apologize for the lengthy response and will be interrogating you on your BM3 post. Thanks again as always for take the time to post these videos.

Anytime brother.. appreciate you taking the time to comment/chat. Yeah pretty sure I know who you are talking about.. I considered them too but ARM had so much more feedback/examples and I do love the sound. I agree though it would be cool to hear a lineup of different setups. As for ARM I hope they iron out the QC issues cause they do make good products and have insanely great customer support.

I am trying to figure out the exhaust setup for the summer. May go equal length for AA but have heard single and it was fantastic.

Yeah man, I'm already getting the itch to try something else out and I know I shouldn't (still very happy with the Valvetronic exhaust) but tbh I'd love to hear a single mid pipe on mine. I had the AA ELs and they were great but from everything I've heard, single gives an even deeper tone.

Nope, I have catted down pipes. Catless dps with equal length mid pipes (like on the valvetronic system) will cause rasp. I actually do still get a little bit, but only if I floor it at low RPMs in a higher gear. Also, beautiful F80 you got there! Subbed 🍻

@jgo.m3 thank you for the heads up !! I just got done installing mine and it sounds lovely but the rasp is god awful ..thanks for the heads up !! And thank you for the sub !!!I went valvetronic after watching your vids lmao

Haha nice! I knew I should have hit them up for a referral code. Sorry to hear about the rasp but otherwise hope you're liking the setup. I know mine is pretty insane with catted dps so yours has gotta be a beast at full throttle 🤘

Thanks so much brother! 🍻 It's a noticeable enough difference to where it kinda feels like a different car imo. Highly recommend.

@@jgo.m3 does the wife think it's too loud? most important question :P

haha def most important! and no, from inside the car it's not too loud (outside is a different story). No smell either so win/win.

Personal preference of course but if it were me I’d go non res mid pipes if dps are resonated.

Thanks! You can smell them a little bit outside the car during or right after cold start but I don't get any smell in the cabin.

@@jgo.m3 aight guess i gotta get under again and check my fitment :(

​@@ccf80 I know the hassle bro. Good luck with it 🍻