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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > 1790 Resonators



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      02-11-2018, 05:27 PM   #1
mweisdorfer
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1790 Resonators

Going to be cutting off the secondary cats and putting Vibrant SS 1790 Resonators in their place, during the next couple of weeks.

I currently have 335IS mufflers with the golf tee mod. & SS X pipe in place of the center resonator.

http://www.redtailperformance.com/Ex...ance_RTP-X002/

I am looking to get rid of some rasp, deepen the tone of the exhaust & perhaps reduce some Hwy. drone. From all accounts I think the 1790 resonators should do this. The nice thing about this deal is that it will reduce some back pressure from the turbos on my n54.
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      02-11-2018, 06:30 PM   #2
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I want to get rid of my rasp too. I'll be watching this thread.
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      02-11-2018, 06:45 PM   #3
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Quote:
Originally Posted by bmuum3 View Post
I want to get rid of my rasp too. I'll be watching this thread.
This is where I got them. I think it's the cheapest price on the net. 1790 is for OEM exhaust pipes, which are 2.25" in diameter. 1792 is for 2.5" in diameter, which will work. It's just the 1790 is an exact match.

https://autoplicity.com/545805-vibra...iABEgKCkPD_BwE
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      02-12-2018, 09:56 AM   #4
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Quote:
Originally Posted by mweisdorfer View Post
This is where I got them. I think it's the cheapest price on the net. 1790 is for OEM exhaust pipes, which are 2.25" in diameter. 1792 is for 2.5" in diameter, which will work. It's just the 1790 is an exact match.

https://autoplicity.com/545805-vibra...iABEgKCkPD_BwE
I went with VSRF catless downpipes and also removed secondary cats and replaced them with 2 of Vibrant 1141 2.5" Ultra Quiet Resonators along with
2 Jones Exhaust Turbine Muffler / Resonator - 304 Stainless Steel - 2.5" to get rid of the droning inside my e92 335xi. I am very pleased with the results! I think I might have some pictures I took on my phone possibly.

Pictures here:
View post on imgur.com

Last edited by addictedtoboost; 02-12-2018 at 02:08 PM..
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      02-12-2018, 10:20 AM   #5
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Quote:
Originally Posted by addictedtoboost View Post
Quote:
Originally Posted by mweisdorfer View Post
This is where I got them. I think it's the cheapest price on the net. 1790 is for OEM exhaust pipes, which are 2.25" in diameter. 1792 is for 2.5" in diameter, which will work. It's just the 1790 is an exact match.

https://autoplicity.com/545805-vibra...iABEgKCkPD_BwE
I went with VSRF catless downpipes and also removed secondary cats and replaced them with 2 of Vibrant 1141 2.5" Ultra Quiet Resonators along with
2 Jones Exhaust Turbine Muffler / Resonator - 304 Stainless Steel - 2.5" to get rid of the droning inside my e92 335xi. I am very pleased with the results! I think I might have some pictures I took on my phone possibly.
Video w/ sound ?
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      02-12-2018, 10:33 AM   #6
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Quote:
Originally Posted by mweisdorfer View Post
This is where I got them. I think it's the cheapest price on the net. 1790 is for OEM exhaust pipes, which are 2.25" in diameter. 1792 is for 2.5" in diameter, which will work. It's just the 1790 is an exact match.

https://autoplicity.com/545805-vibra...iABEgKCkPD_BwE
For anyone interested we price match and have these in stock. (It's also supporting the vendors who keep the forums going)
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      02-12-2018, 02:09 PM   #7
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Quote:
Originally Posted by mweisdorfer View Post
Video w/ sound ?
Iíll have my friend take a start up video and Iíll rev the engine a few times so you can hear. Iíll upload this evening.
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      02-12-2018, 03:15 PM   #8
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FWIW youíre wrong on both counts, oem exhaust isnít 2.25 or 2.5, itís 60mm so pretty much smack in the middle.
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      02-12-2018, 05:04 PM   #9
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Quote:
Originally Posted by addictedtoboost View Post
Quote:
Originally Posted by mweisdorfer View Post
Video w/ sound ?
Iíll have my friend take a start up video and Iíll rev the engine a few times so you can hear. Iíll upload this evening.
If you can get a cold start & a warm start, that would be ideal. Just a suggestion.
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