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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Video: BMW Performance Exhaust with Secondary Cat Delete on e92 328xi



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      04-08-2011, 05:44 PM   #1
kamek
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UPDATED Video: BMW Performance Exhaust with Secondary Cat Delete on e92 328xi

UPDATE: NEW VIDEO ADDED!

Quote:
Originally Posted by csupernova View Post
Brian, how you like the sound after few days with the cat delete? Noticeable louder?
Quote:
Originally Posted by kamek View Post
It is much louder from where it was before (find my old BMW PE video on my YouTube account and you'll see how much more aggressive it is now). I think I can safely say that the BMW PE with secondary cat delete is the absolute perfect exhaust setup for our cars. You can hear all the BMW PE goodness (gurgles, pops, and all) from inside the cabin. With windows down, it's a beautiful sound, especially when really getting on the gas. The car exhaust really opens up and screams when driving aggressively -- compared to pre-secondary cat delete in which the exhaust sound would get drowned out by the wind. I was taken for a ride in my car and sat in the passenger seat and it's still fairly quiet from that side. Also, I still don't sense any drone when cruising on the highway, but you'll hear a nice exhaust grunt when you give it a little gas.

Guys, this is the perfect exhaust setup for our cars and serves so well as a daily driver exhaust. It can be really aggressive and loud when you want it to be, and it won't drone when cruising. Also note that this still sounds like the original BMW PE that we love, but it's made louder so we can hear it and love it more! This is by far one of the best things I've ever done with my car!
If anyone wants to see anything on video, feel free to let me know. I'll make a video of requests when I have the time.

Available in HD!

UPDATED VIDEO:


Old video:
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Last edited by kamek; 04-20-2011 at 04:22 AM. Reason: update
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      04-08-2011, 06:23 PM   #2
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Sounds great!
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      04-08-2011, 06:47 PM   #3
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wow very impressive
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      04-08-2011, 09:02 PM   #4
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sounds good
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      04-08-2011, 09:18 PM   #5
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NOMNOMNOMNOMNOMNOMNOMNOMNOM.

I'm loving that noise. I'm doing the PE this summier on my 328i xDrive, maybe this cat delete will have to happen too
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      04-10-2011, 06:25 PM   #6
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Sounds great. Throttle response seems more immediate.
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      04-10-2011, 09:20 PM   #7
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I like how our engines sound sort of like a turbo fan (jet) engine when the rev is falling.. Kind of a high pitched sound. I never noticed it on other cars before.
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      04-10-2011, 10:31 PM   #8
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Quote:
Originally Posted by Patsfan123 View Post
I like how our engines sound sort of like a turbo fan (jet) engine when the rev is falling.. Kind of a high pitched sound. I never noticed it on other cars before.
You'll hear it most if you an intake system especially the afe intake.
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      04-11-2011, 03:48 PM   #9
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Cant wait to install my PE exhaust
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      04-11-2011, 07:56 PM   #10
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ohhhhhhhleyyyyy!!!!!!
Sounds sickkkk!!! I am getting my PE in 3-4 weeks .... Doesit droan witht he delete?
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      04-12-2011, 03:22 AM   #11
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do u notice any performance changes beside the sound?
i am consider this mod too..
will it decrease the backpressure?
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      04-12-2011, 05:41 PM   #12
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been thinking of doing this to mine actually, id love to hear some drive bys if you can get a chance
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      04-12-2011, 06:09 PM   #13
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Quote:
Originally Posted by BeemBoi View Post
ohhhhhhhleyyyyy!!!!!!
Sounds sickkkk!!! I am getting my PE in 3-4 weeks .... Doesit droan witht he delete?
There's more interior cabin noise, but still no drone when cruising!

Quote:
Originally Posted by johnsonz1122 View Post
do u notice any performance changes beside the sound?
i am consider this mod too..
will it decrease the backpressure?
No performance changes, but I don't think it reduces back pressure since the exhaust still pops (which to my understanding is caused by back pressure)

Quote:
Originally Posted by E90-07 View Post
been thinking of doing this to mine actually, id love to hear some drive bys if you can get a chance
I'll post up a drive by video with better audio. I was using the built in mic of my 5D2 for this quick vid, but I'll do the revs again in addition!
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      04-12-2011, 06:20 PM   #14
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In for vids brah thanks
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      04-16-2011, 06:21 PM   #15
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New video added!
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      04-18-2011, 02:16 AM   #16
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sounds so nice. it's much louder.. what rpm did u reach when u take off in that video ?
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      04-18-2011, 09:27 AM   #17
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Brian, how you like the sound after few days with the cat delete? Noticeable louder?
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      04-20-2011, 04:17 AM   #18
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Quote:
Originally Posted by johnsonz1122 View Post
sounds so nice. it's much louder.. what rpm did u reach when u take off in that video ?
I don't remember what RPM's I hit, but I wasn't on the gas hard. For the revs, I think I hit around 6k RPM. For the take off, I think I shifted around 5k RPM.

Quote:
Originally Posted by csupernova View Post
Brian, how you like the sound after few days with the cat delete? Noticeable louder?
It is much louder from where it was before (find my old BMW PE video on my YouTube account and you'll see how much more aggressive it is now). I think I can safely say that the BMW PE with secondary cat delete is the absolute perfect exhaust setup for our cars. You can hear all the BMW PE goodness (gurgles, pops, and all) from inside the cabin. With windows down, it's a beautiful sound, especially when really getting on the gas. The car exhaust really opens up and screams when driving aggressively -- compared to pre-secondary cat delete in which the exhaust sound would get drowned out by the wind. I was taken for a ride in my car and sat in the passenger seat and it's still fairly quiet from that side. Also, I still don't sense any drone when cruising on the highway, but you'll hear a nice exhaust grunt when you give it a little gas.

Guys, this is the perfect exhaust setup for our cars and serves so well as a daily driver exhaust. It can be really aggressive and loud when you want it to be, and it won't drone when cruising. Also note that this still sounds like the original BMW PE that we love, but it's made louder so we can hear it and love it more! This is by far one of the best things I've ever done with my car!

If anyone wants to see anything on video, feel free to let me know. I'll make a video of requests when I have the time.
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Last edited by kamek; 04-20-2011 at 04:25 AM.
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      04-26-2011, 06:26 PM   #19
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bump in case this was missed
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      04-26-2011, 06:47 PM   #20
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nice bro!
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      05-01-2011, 05:37 PM   #21
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Will removing the secondary cats have any negative effects? Such as failing emission, voiding warranties, loss of power?
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      05-01-2011, 11:55 PM   #22
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You know whats funny? This sounds exactly like my muffler delete without removing the cats. lol
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