Question for those who've removed their resonator(s)...
05-17-2007, 06:07 AM
#1
Senior Members
Thread Starter
Join Date: Feb 2007
Posts: 291
Likes: 0
Received 0 Likes
on
0 Posts
like most our cars, mine's got a total of three resonators... theres the twin cylinder-shaped ones right after the cat, then there's the rectangular-shaped one closer to the muffler. to get more sound, which one(s) "should" be removed? most say there's a slight decrease on the bottom-end as a result. but, what's the positive/negative effect in removing them all? and if only one is to be removed, which one should it be?
05-19-2007, 06:32 PM
#2
Senior Members
Join Date: Sep 2004
Location: New York, NY
Posts: 2,074
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: '05 545i - scheduled for ED pickup in Munich on 7/22!
i did all 3. member "JDN" said he removed the box and didn't notice a difference. i remember a few posts from waaay back saying ppl removed the 2 tubes and DID notice a difference - slightly louder and deeper sound on a 545.
based on that, i guess if you can only remove either the box or tubes, do the tubes...?
based on that, i guess if you can only remove either the box or tubes, do the tubes...?
05-22-2007, 10:40 PM
#3
Members
Join Date: Apr 2006
Posts: 121
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by jet190rs' post='426349' date='May 19 2007, 07:32 PM
i did all 3. member "JDN" said he removed the box and didn't notice a difference. i remember a few posts from waaay back saying ppl removed the 2 tubes and DID notice a difference - slightly louder and deeper sound on a 545.
based on that, i guess if you can only remove either the box or tubes, do the tubes...?
based on that, i guess if you can only remove either the box or tubes, do the tubes...?
yeha get a custom made xpipe (froma a muffler shop) which is cheaper and better than a magnaflow xpipe...
someone did this to his 4.4l x5 with all stock exhasut and it sounds BEASTLY. The best part is that when you're not WOT, it sounds just as nice as stock, with a lil' more sound...nothing annoying.
-jl
05-23-2007, 11:37 AM
#4
Former Vendor
Join Date: Oct 2006
Location: Anaheim, CA
Posts: 19,460
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: F13 M6
i just had as you described the rectangular one replaced with straight piping. ever since my exhaust has sounded deeper and more noticeable even inside the cabin. also, nothing annoying.
05-24-2007, 10:23 AM
#6
Former Vendor
Join Date: Oct 2006
Location: Anaheim, CA
Posts: 19,460
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: F13 M6
just the rectangular resonator, then a single 2.5" pipe from there to my eisenmann. should i have the tubular ones replaced too? btw, where are the cats on our cars?
05-24-2007, 11:38 AM
#7
Contributors
The cats are closed to header.
I'm still confused, I thought you run straight pipe, but you mention Eisenmann here
Also, there are 2 pipes coming in rectangular resonator and coming out with a like 5" single pipe. So you meant 2.5" pipeS or pipe? It should be 2 2.5 in pipes to the xpipe and out, right?
I'm still confused, I thought you run straight pipe, but you mention Eisenmann here
Also, there are 2 pipes coming in rectangular resonator and coming out with a like 5" single pipe. So you meant 2.5" pipeS or pipe? It should be 2 2.5 in pipes to the xpipe and out, right?
05-24-2007, 05:18 PM
#8
Former Vendor
Join Date: Oct 2006
Location: Anaheim, CA
Posts: 19,460
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: F13 M6
sorry for any confusion. on my 530 my eisenmann is an axle-back. the shop cut the resonator where those two pipes come together as one and then they cut it near my eisenmann. the single pipe after the rectangular resonator is only about 2" to 2.5". they replaced that space with a single 2.5" pipe. they just bent one end to be flatter and wider for the area where the 2 pipes come together originally.
edit: still a newb and still learning. sorry for the ignorance. regarding the cats, i asked because the shop told me that "those 2 tubular things are the cats and its good because they're small." so they're really just silencers?i know the v8s have 3 to remove, i didnt know the 530 would be the same. and its ok if i have them removed? if anything i thought there would be o2 sensors there or something thinking they were the cats. and if i were to have them removed, would bmw be fine with that? and where to cut, right before those "tubular things"? thanks in advance.
edit: still a newb and still learning. sorry for the ignorance. regarding the cats, i asked because the shop told me that "those 2 tubular things are the cats and its good because they're small." so they're really just silencers?i know the v8s have 3 to remove, i didnt know the 530 would be the same. and its ok if i have them removed? if anything i thought there would be o2 sensors there or something thinking they were the cats. and if i were to have them removed, would bmw be fine with that? and where to cut, right before those "tubular things"? thanks in advance.
05-30-2007, 10:58 PM
#9
Contributors
Join Date: Mar 2006
Location: SoCal
Posts: 4,239
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: No mods
Originally Posted by NeRwEEzy' post='428046' date='May 24 2007, 06:18 PM
sorry for any confusion. on my 530 my eisenmann is an axle-back. the shop cut the resonator where those two pipes come together as one and then they cut it near my eisenmann. the single pipe after the rectangular resonator is only about 2" to 2.5". they replaced that space with a single 2.5" pipe. they just bent one end to be flatter and wider for the area where the 2 pipes come together originally.
edit: still a newb and still learning. sorry for the ignorance. regarding the cats, i asked because the shop told me that "those 2 tubular things are the cats and its good because they're small." so they're really just silencers?i know the v8s have 3 to remove, i didnt know the 530 would be the same. and its ok if i have them removed? if anything i thought there would be o2 sensors there or something thinking they were the cats. and if i were to have them removed, would bmw be fine with that? and where to cut, right before those "tubular things"? thanks in advance.
edit: still a newb and still learning. sorry for the ignorance. regarding the cats, i asked because the shop told me that "those 2 tubular things are the cats and its good because they're small." so they're really just silencers?i know the v8s have 3 to remove, i didnt know the 530 would be the same. and its ok if i have them removed? if anything i thought there would be o2 sensors there or something thinking they were the cats. and if i were to have them removed, would bmw be fine with that? and where to cut, right before those "tubular things"? thanks in advance.
bump for FANTASTIC 5
Nerweezy, I think you should delete the other 2 resonators. According to FANTASTIC 5 (Joe), he removed them. He has the Eisenmann Race like you, and he revved it for me today when I was at his shop. It sounded awesome, especially at 4-5k rpm, it was screaming!!
Thx again for hooking me up FANTASTIC 5 for the JL Audio w6v2.
... way better than my MTX
05-31-2007, 07:20 AM
#10
Senior Members
Thread Starter
Join Date: Feb 2007
Posts: 291
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by alpinewhite' post='430169' date='May 30 2007, 11:58 PM
bump for FANTASTIC 5
Nerweezy, I think you should delete the other 2 resonators. According to FANTASTIC 5 (Joe), he removed them. He has the Eisenmann Race like you, and he revved it for me today when I was at his shop. It sounded awesome, especially at 4-5k rpm, it was screaming!!
Thx again for hooking me up FANTASTIC 5 for the JL Audio w6v2. ... way better than my MTX
Nerweezy, I think you should delete the other 2 resonators. According to FANTASTIC 5 (Joe), he removed them. He has the Eisenmann Race like you, and he revved it for me today when I was at his shop. It sounded awesome, especially at 4-5k rpm, it was screaming!!
Thx again for hooking me up FANTASTIC 5 for the JL Audio w6v2.
... way better than my MTXno problem john, i'm glad you like your new setup. the guys at the shop were amazed at how loud and clean that w6v2 sounded. sure, you've got a great sub and good amp, but like i told you that box is key!
Thread
Thread Starter
Forum
Replies
Last Post