Question: E90 Exhaust/Resonator

[E90Company]

So I know the coupe's exhaust does not have a resonator like the sedan does. My question is what do I need to do to my E90 to make it sound exactly like a coupe? Is it an X/H/Divorced pipe? What should I tell my exhaust shop to do?

Thanks guys.

[bryce]

delete the resonator and add a magnaflow x-pipe. they can be had for $75 or so, and any muffler shop can delete the resonator and weld-in the x-pipe

[E90Company]

delete the resonator and add a magnaflow x-pipe. they can be had for $75 or so, and any muffler shop can delete the resonator and weld-in the x-pipe

Thanks. I also heard you will benefit from running divorced piping. Does this sound good.

[bryce]

Thanks. I also heard you will benefit from running divorced piping. Does this sound good.

no. divorced piping just means each turbo has it's own full exhaust, with no cross-path. the x-pipe is great for flow and sound. there are only a few true divorced exhaust setups. AE is the main one i can think of. i'd recommend just welding in the x-pipe, assuming you already have catless downpipes. with the solenoid by-pass, your exhaust will sound pretty damn good.

[benzy89]

Just get a 335is or the BMW PE, either will give you a much more throaty exhaust. The IS exhaust gives you the benefit of keeping the flap when you want to be socially acceptable

[E90Company]

Just get a 335is or the BMW PE, either will give you a much more throaty exhaust. The IS exhaust gives you the benefit of keeping the flap when you want to be socially acceptable

True, but I really like the sound of the coupes with the DP and don't really want much more than that. It'll be cheaper too

[benzy89]

True, but I really like the sound of the coupes with the DP and don't really want much more than that. It'll be cheaper too

Then an X or H pipe with resonators (to avoid rasp) would be ideal

[Legionofboom]

I personally like the sedan over the coupé but thats all personal. Like everyone has said, just weld in a xpipe

[lulz_m3]

Just get a 335is or the BMW PE, either will give you a much more throaty exhaust. The IS exhaust gives you the benefit of keeping the flap when you want to be socially acceptable

Dont do this if you have catless downpipes, unless you want your car to sound like a civic under 4k rpms. Expensive mistake...

[bryce]

yep. honestly, x-pipe welded into the place of the resonator on the e90 with catless downpipes = one of the best sounding exhausts for the e90. basically the same thing as the e92 with catless downpipes.

[Dr. G]

@lulz_m3 I'm glad somebody other than me also feels this way lol. Everywhere you go on the other forums ppl are like "OMGGG PE w/ DP's OMGG". All along people called me an idiot when I called the setup raspy lol.

I loved the PE alone, sounded GREAT, but then I fell for the downpipes lol... and then ended up falling for more hyype as well and bought the Vanguard.... I guess people love rasp?

[lulz_m3]

@lulz_m3 I'm glad somebody other than me also feels this way lol. Everywhere you go on the other forums ppl are like "OMGGG PE w/ DP's OMGG". All along people called me an idiot when I called the setup raspy lol.

I loved the PE alone, sounded GREAT, but then I fell for the downpipes lol... and then ended up falling for more hyype as well and bought the Vanguard.... I guess people love rasp?

It's crazy man. After reading the reviews and listening to numerous vids I was positive I would be thrilled. The sad part is I never even got to enjoy the PE with stock downpipes, I put it on after. I'm seriously contemplating going back to stock muffs.

[stangorang]

delete the resonator and add a magnaflow x-pipe. they can be had for $75 or so, and any muffler shop can delete the resonator and weld-in the x-pipe

This. I have an e90 and did exactly this with the Magnaflow X-pipe. I have kittyless DPs, secondary cats in place, and the sound is just right. No drone on the highway and it really added some volume and just a touch of rasp. Very nice mod if you ask me.

[bryce]

This. I have an e90 and did exactly this with the Magnaflow X-pipe. I have kittyless DPs, secondary cats in place, and the sound is just right. No drone on the highway and it really added some volume and just a touch of rasp. Very nice mod if you ask me.

agreed

[bigdaddycane]

E90 Company,

I am looking to do the exact same thing and was directed to this part by a fell BB member (as other have referenced in this post).

http://www.jegs.com/i/Magnaflow/642/...oductId=759589

Price is pretty good as I searched the web and was not really able to find it much cheaper.

Just say no to rasp....

[El Duce]

I absolutely love the sound of my BMW PE, but to get the power that I want I need aftermarket downpipes. After reading the reviews, especially here, I decided to pop for the AR downpipes with the resonators because I really, REALLY don't want to lose the sound I have. I'm hoping that it works and I can maintain the sexy ass sound of the PE.

[E90Company]

E90 Company,

I am looking to do the exact same thing and was directed to this part by a fell BB member (as other have referenced in this post).

http://www.jegs.com/i/Magnaflow/642/...oductId=759589

Price is pretty good as I searched the web and was not really able to find it much cheaper.

Just say no to rasp....

Thanks for the link! This is what i'll get for sure.

This. I have an e90 and did exactly this with the Magnaflow X-pipe. I have kittyless DPs, secondary cats in place, and the sound is just right. No drone on the highway and it really added some volume and just a touch of rasp. Very nice mod if you ask me.

Golf tee mod valve open?

yep. honestly, x-pipe welded into the place of the resonator on the e90 with catless downpipes = one of the best sounding exhausts for the e90. basically the same thing as the e92 with catless downpipes.

When you say basically the same, is there any difference? Or are you just referring to the fact that I would be using a Magnaflow part rather than OEM?

[stangorang]

Thanks for the link! This is what i'll get for sure.



Golf tee mod valve open?



When you say basically the same, is there any difference? Or are you just referring to the fact that I would be using a Magnaflow part rather than OEM?

Basically yes. I cut the valve off when I put Dimisa tips on the car.

[bigdaddycane]

Basically yes. I cut the valve off when I put Dimisa tips on the car.

can you add the Dimisa tips WITHOUT cutting off the valve?

[stangorang]

can you add the Dimisa tips WITHOUT cutting off the valve?

Don't think so. The are a bit long.

[BoostAddict]

Nick, when you get this done, let me where you went and how much they charged you.

[I6+TT=FTW]

Currently rocking a muffler delete and dimisa tips on my e90. After my next round of emissions, I'll be getting kittyless downpipes. I have been trying to find vibrant resonators and xpipe combo that will help the exhaust sound.
I'm thinking of doing this because I've heard time and time again that catless downpipes with a muffler delete sounds like dog $#@!, and I honestly think my muffler delete sounds WAY better than a friends Corsca exhaust with catless dps.

Adding that magnaflow xpipe improve some things? @lulz_m3, @E90Company, @bryce, @Dr. G, @benzy89

[stangorang]

delete the resonator and add a magnaflow x-pipe. they can be had for $75 or so, and any muffler shop can delete the resonator and weld-in the x-pipe

This. Sounds real good with stock mufflers and catless downpipes.

[Dr. G]

Currently rocking a muffler delete and dimisa tips on my e90. After my next round of emissions, I'll be getting kittyless downpipes. I have been trying to find vibrant resonators and xpipe combo that will help the exhaust sound.
I'm thinking of doing this because I've heard time and time again that catless downpipes with a muffler delete sounds like dog $#@!, and I honestly think my muffler delete sounds WAY better than a friends Corsca exhaust with catless dps.

Adding that magnaflow xpipe improve some things? @lulz_m3, @E90Company, @bryce, @Dr. G, @benzy89

I think the vibrant resonators alone should clean up the exhaust note quite nicely. It also depends on how loud you like your exhaust.

[I6+TT=FTW]

I think the vibrant resonators alone should clean up the exhaust note quite nicely. It also depends on how loud you like your exhaust.

I like my exhaust pretty loud/aggressive, just not too loud for a BMW. Im just worried that without mufflers and dps the "bad" sounds (drone and the high pitch tinny sound mid rpm range) will be louder, not the mean growl/rumble.

But I definitely don't want the stock mufflers back on, way too tame.