[all8up]

Originally Posted by Walked U

Thanks sam.

Even with my old exhaust 2.5 inch mid pipe back with a X pipe i had drone also. Not as bad as I do now. But i think its just the car.

I have tried a lot of stuff to get rid of the drone when on the street. Tired putting larger mufflers with a bigger resonator and it doesnt seem to work. It gets quieter but still drones. 2k-2.5k is the worst spot for drone. After that or below that theres no cabin drone at all.

My buddy at magna flow said that bmw will do anything to reduce sound noise in the cabin even if that means lossing a couple hp. Esp on the non M models, since they arent really " sporty."

Thats why on the stock exhaust there are a lot of unessesary crushes and crimps.

Hmm, I have 2.5" pipes along with a a cross-over pipe and I'm planning on replacing the cross-over with that magnaflow mid-pipe muffler that you are using. I really hope this takes that annoying 2k-2.5k rpm drone that I am getting. Thanks for posting up some of your findings, since I was also considering chaning out the rear mufflers as well.

[Walked U]

Originally Posted by all8up

Hmm, I have 2.5" pipes along with a a cross-over pipe and I'm planning on replacing the cross-over with that magnaflow mid-pipe muffler that you are using. I really hope this takes that annoying 2k-2.5k rpm drone that I am getting. Thanks for posting up some of your findings, since I was also considering chaning out the rear mufflers as well.

It will lessen the drone for sure. But I dont think it will completely remove it. Let me know how it goes.


Ill try to get some footage of e riding at 2k rpms on the street. Hopefully that will give you some idea how it is.

[Walked U]

Originally Posted by chbrules

Maybe I missed it, but what is your car putting out in terms of HP? Is this tuned with one of the piggy-back units like procede/xede/TT? Awesome stuff, and I love the sound of that exhaust; sounds a bit ricer though

with just procede STD corrected I put down 330/ 368.

With the exhaust I put down 344 rwhp 387 wtq STD corrected. Both on 91.

That was a glory run tho. I was averaging around 340 / 385. Peak hp doesnt really matter to me as much. I gained through the entire rpm band which was nice. In some places I got a 10 rwhp gain and like 15 wtq.

I still have to dyno with the filter. But I really think I made the same hp if only around 1 rwhp.


As for the sound. Ya it sounds really deep in person. on camera it doesnt sound too good, unless i get a better camera... lol

[SoCal335i]

Originally Posted by Walked U

with just procede STD corrected I put down 330/ 368.

With the exhaust I put down 344 rwhp 387 wtq STD corrected. Both on 91.

That was a glory run tho. I was averaging around 340 / 385. Peak hp doesnt really matter to me as much. I gained through the entire rpm band which was nice. In some places I got a 10 rwhp gain and like 15 wtq.

I still have to dyno with the filter. But I really think I made the same hp if only around 1 rwhp.


As for the sound. Ya it sounds really deep in person. on camera it doesnt sound too good, unless i get a better camera... lol

What kind of mufflers did you use?

[Walked U]

Originally Posted by SoCal335i

What kind of mufflers did you use?

not sure what they are called. They are straight through design tho ( cylinder shaped.)

[Mr. 5]

Sorry, but IMO that magnaflow sounds very farty--just like the magnaflow for the e46 M3.

[all8up]

Originally Posted by Walked U

It will lessen the drone for sure. But I dont think it will completely remove it. Let me know how it goes.


Ill try to get some footage of e riding at 2k rpms on the street. Hopefully that will give you some idea how it is.

Thanks I appreciate it.
At first I thought I had some huge exhaust leak, just to find out otherwise...

[CrazyHohol]

so whats the verdict on the itg filter good invest does it give off a deeper engine tone? and is it a drop in replacement for the stock air filter.

[Walked U]

Originally Posted by CrazyHohol

so whats the verdict on the itg filter good invest does it give off a deeper engine tone? and is it a drop in replacement for the stock air filter.

As for the filter. I havent got the chance to redyno it since my buddies have been preparing and are at sema right now.

But as for engine tone. You can hear the turbos spool louder (from inside the cabin)


Yes its a drop in replacment.

It was about $125. If you want to hear your turbos spool. Id get it, other wise with performance I wouldnt even know, since I havent redynoed yet. My guess is either 1-4 rwhp gain, if not the same.

[CrazyHohol]

cool i think i will be picking one of those up sometime soon and i wanted to ask you why did you get rid of the zoomers they seemed like a really good exhuast.

[Walked U]

Originally Posted by Motion

Isn't SEMA much later this year?

Not for them lol

They are already there getting their crap together.

[Walked U]

Originally Posted by CrazyHohol

cool i think i will be picking one of those up sometime soon and i wanted to ask you why did you get rid of the zoomers they seemed like a really good exhuast.

Ya it was a good exhaust. I just sold it because i got bigger piping.

[SamK]

wow. that GTO is running great. I ran one in my Jetta 60-140 and pulled away from him the way he pulled on you.

I was thinking about going magnaflow in the 335 just because I've had good luck with them. I've got a shop so it'd be tig welded and look a lot liek what you did. How satisfied are you with the setup you have right now?

[Walked U]

Originally Posted by SamK

wow. that GTO is running great. I ran one in my Jetta 60-140 and pulled away from him the way he pulled on you.

I was thinking about going magnaflow in the 335 just because I've had good luck with them. I've got a shop so it'd be tig welded and look a lot liek what you did. How satisfied are you with the setup you have right now?

Im happy with it. I need to go back in on the 10th tho because since this was just a "jig" They welded everything together.


So until I go back in and they get the bender online. We can probably bend everything in 1 piece.

Ya my friends gto is a beast. Running 440 rwhp and 410 wtq. Hes still missing intake mani and 1 other thing. We are thinking with the intake mani and the other piece he should be getting around 500 rwhp all motor. After that probably run n2o.

We did a few runs before he got the cam put in and we were a bit even. He pulled probably about 1/2 a CL on me.

Alot of people would be shocked on how well the 335i is up top.

[jerrygarcia]

sounds pretty good, how much did the custom fabrication cost if u dont mind me asking

[Walked U]

Originally Posted by jerrygarcia

sounds pretty good, how much did the custom fabrication cost if u dont mind me asking

Just had to pay for the material.

good friend lol. But i ended up giving him a tip also.

[Ado]

Love the sound, love the clips.

I said it before and I'll say it again. You provide us with THE best videos out there. We need to all put like $10 in and buy you a new camera so that we can get better quality videos lol

[Walked U]

Originally Posted by Ado

Love the sound, love the clips.

I said it before and I'll say it again. You provide us with THE best videos out there. We need to all put like $10 in and buy you a new camera so that we can get better quality videos lol

Heheh, dont worry about it ado. I got a new one probably a week or 2 ago.

Heres some clips. If you guys are curious how 3 inch would sound with a reonator ill put more up, and ill try to get from inside the cabin so you can hear the drone.

But anyways here the new video.

http://www.e90post.com/forums/showth...ghlight=walked

http://www.e90post.com/forums/showthread.php?t=65317

http://www.e90post.com/forums/showthread.php?t=64324

http://www.e90post.com/forums/showthread.php?t=64705


Lol kinda shocked this thread was brought back to life anyways.

[SamK]

Originally Posted by Walked U

Im happy with it. I need to go back in on the 10th tho because since this was just a "jig" They welded everything together.


So until I go back in and they get the bender online. We can probably bend everything in 1 piece.

Ya my friends gto is a beast. Running 440 rwhp and 410 wtq. Hes still missing intake mani and 1 other thing. We are thinking with the intake mani and the other piece he should be getting around 500 rwhp all motor. After that probably run n2o.

We did a few runs before he got the cam put in and we were a bit even. He pulled probably about 1/2 a CL on me.

Alot of people would be shocked on how well the 335i is up top.

yeah, there's a lot of potential on the 6.0l and an LS motor and nitrous is always a good combo.

I keep debating an NX kit on the 335, I'm just a bit scared of taking a paid off e92 that doesn't belong to me and putting nitrous on it. lol.


I've run nitrous in a few cars and really enjoyed it, once I finish building my spare 1.8t short block it's getting a 150 shot.

[Walked U]

Heres a quick 2nd gear pull from 1k - 6.5k from inside the cabin.

[oneshare325]

You make great posts!

[You Love It]

Originally Posted by Walked U

Heres a quick 2nd gear pull from 1k - 6.5k from inside the cabin.

nice, you can really hear those turbos spool