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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 > Dual-exhaust conversion on PE



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      03-16-2015, 11:48 PM   #89
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Quote:
Originally Posted by Gjm127 View Post
Hey guys, after buying the BMW PE for my 328xi, I'm now very interested in converting the tips into duals (335i style).

I will be buying the M-tech bumper and the 335i Duke Dynamics dual diffuser (the one with the middle fins).

I want to cut out the tips on my 328i BMW Performance exhaust, add an extension pipe to the right side and install new tips (or the PE ones but seperated).

Would it affect the noise or the car's performance? I don't want to ruin my exhaust because I put a lot of money into it!
If anyone knows, is this feasible?

I've already seen it on this forum (the one with the Montego blue color), but not on a BMW PE... That's where I'm concerned.

Thanks!
Hey bud! How's the conversion? Did you make it happen? If yes, do you have sound clips i can listen?

Thanks
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      10-25-2015, 11:13 PM   #90
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Nicely done
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      02-01-2016, 09:40 PM   #91
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Bump.

Can you post a video with the secondary cat delete?

Car looks amazing btw
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      08-10-2017, 06:28 PM   #92
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Anyone does this mod in the GTA?
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      08-10-2017, 09:01 PM   #93
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Quote:
Originally Posted by Gjm127 View Post
Hey guys, after buying the BMW PE for my 328xi, I'm now very interested in converting the tips into duals (335i style).

I will be buying the M-tech bumper and the 335i Duke Dynamics dual diffuser (the one with the middle fins).

I want to cut out the tips on my 328i BMW Performance exhaust, add an extension pipe to the right side and install new tips (or the PE ones but seperated).

Would it affect the noise or the car's performance? I don't want to ruin my exhaust because I put a lot of money into it!
If anyone knows, is this feasible?

I've already seen it on this forum (the one with the Montego blue color), but not on a BMW PE... That's where I'm concerned.

Thanks!

Does sound or performance increase from doing this?
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      02-12-2018, 12:20 PM   #94
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bump again,

same boat 2013 328i m performance exhaust, im ocd and want the symmetric look.

what i need..
335i rear diffuser
and thinkin of burnt blue tips (or just chrome tips)from cyba

would u recommend?? or just leave it as is and suck up the single side look for another 3-5 years untill time for new car?
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      02-13-2018, 10:21 AM   #95
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Quote:
Originally Posted by joey.i92 View Post
bump again,

same boat 2013 328i m performance exhaust, im ocd and want the symmetric look.

what i need..
335i rear diffuser
and thinkin of burnt blue tips (or just chrome tips)from cyba

would u recommend?? or just leave it as is and suck up the single side look for another 3-5 years untill time for new car?
if you go for a "true dual" setup, you're gonna need a shallow trunk bin as well.
I hear you on the ocd thing as well. Same lol...
It made me sad when my ladies little mazda 6 with a 4cyl had a dual exhaust from factory and I'm sitting there like...
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      02-13-2018, 04:00 PM   #96
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Haha. While I do think the dual look of the 335 is sweet, and obviously the M3's quads are just nasty (in a good way).. I personally enjoy the 328's exhaust exit, as to me it is OG BMW 3er.
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      02-14-2018, 12:03 PM   #97
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Quote:
Originally Posted by Noir View Post
if you go for a "true dual" setup, you're gonna need a shallow trunk bin as well.
I hear you on the ocd thing as well. Same lol...
It made me sad when my ladies little mazda 6 with a 4cyl had a dual exhaust from factory and I'm sitting there like...
hahaha, im not gonna go true 335 setup just what this guy did and run s.s pipe from my 328 p.e. im ordering the 3.7 burnt blue cyba tips today. seen nothing but good stuff about them on here.

a 335 diffuser will fit on my 328 m tech bumper right? thats gonna be the most money and my concern at the moment
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      02-15-2018, 09:15 AM   #98
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Quote:
Originally Posted by joey.i92 View Post
Quote:
Originally Posted by Noir View Post
if you go for a "true dual" setup, you're gonna need a shallow trunk bin as well.
I hear you on the ocd thing as well. Same lol...
It made me sad when my ladies little mazda 6 with a 4cyl had a dual exhaust from factory and I'm sitting there like...
hahaha, im not gonna go true 335 setup just what this guy did and run s.s pipe from my 328 p.e. im ordering the 3.7 burnt blue cyba tips today. seen nothing but good stuff about them on here.

a 335 diffuser will fit on my 328 m tech bumper right? thats gonna be the most money and my concern at the moment
that diffuser should fit the bill!
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      02-15-2018, 09:20 AM   #99
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Quote:
Originally Posted by Noir View Post
that diffuser should fit the bill!

ill post pics of install and finished product when complete, im lookin to do all the work mid march
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      02-15-2018, 11:02 AM   #100
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Quote:
Originally Posted by joey.i92 View Post
Quote:
Originally Posted by Noir View Post
that diffuser should fit the bill!

ill post pics of install and finished product when complete, im lookin to do all the work mid march
All the e90 msport bumpers SHOULD be the same. The only issue I can foresee is having 1 component (bumper or diffuser) be oem and the other a non oem part which may require some slight cutting in certain areas to make it work.

You got this, dude!
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      02-27-2018, 01:03 PM   #101
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UPDATE, ORDERED AND RECEIVED 335 M TECH DIFFUSER, WILL FIT IN THE 328I BUMPER NO QUESTIONS ASKED. AND MY CYBA TIPS CAME IN LAST NIGHT! PEEP THE PICS...ABOUT A WEEK OR UNTIL INSTALL



Quote:
Originally Posted by Noir View Post
All the e90 msport bumpers SHOULD be the same. The only issue I can foresee is having 1 component (bumper or diffuser) be oem and the other a non oem part which may require some slight cutting in certain areas to make it work.

You got this, dude!
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      02-27-2018, 01:52 PM   #102
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Quote:
Originally Posted by joey.i92 View Post
UPDATE, ORDERED AND RECEIVED 335 M TECH DIFFUSER, WILL FIT IN THE 328I BUMPER NO QUESTIONS ASKED. AND MY CYBA TIPS CAME IN LAST NIGHT! PEEP THE PICS...ABOUT A WEEK OR UNTIL INSTALL



Quote:
Originally Posted by Noir View Post
All the e90 msport bumpers SHOULD be the same. The only issue I can foresee is having 1 component (bumper or diffuser) be oem and the other a non oem part which may require some slight cutting in certain areas to make it work.

You got this, dude!
Nice!!
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      03-12-2018, 08:57 AM   #103
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so here was my Saturday! 6 hours to get everything perfect but well worth it.

process was
measure, cut, sand, polish, tack weld and repeat. after everything was in place we removed the tack welding and welded it properly, 2000 degree heat resistant gloss black paint, mounted the muffler back on and there you have it 6 hours later me and my friend did it he asked for $225 i gave him $350 for the good job.

what do u think?!



Quote:
Originally Posted by Noir View Post
Nice!!
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      03-12-2018, 09:07 AM   #104
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I think it looks good but those sharp bends before the tips can’t be good for flow?
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      03-12-2018, 10:54 AM   #105
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Looks pretty!
Like Big said, the sharp bend is questionable, but I think one of the actual kits has that bend on the passenger side, unless its a dummy pipe.

Good job DIY'ing it, though!
Let us know how it works out.
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      03-12-2018, 01:54 PM   #106
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Quote:
Originally Posted by Noir View Post
Looks pretty!
Like Big said, the sharp bend is questionable, but I think one of the actual kits has that bend on the passenger side, unless its a dummy pipe.

Good job DIY'ing it, though!
Let us know how it works out.
so far so good, the sound hasn't changed with is good but i def can feel slight performance/acceleration decrease from the bends. im not racing over here so honestly i really dont care cause its so minimal. but yea the bends are 90 degrees.... still passing the daily drivers on highways no problem though.

its the best we can get
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      03-12-2018, 01:56 PM   #107
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Quote:
Originally Posted by Biginboca View Post
I think it looks good but those sharp bends before the tips can’t be good for flow?
bends are 90 degrees but yes def notice slight decrease in accelerations at under 2.5 rpms. very minimal though, i wanted a functional exhaust rather than a dummy pipe. def happy with the outcome though
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      03-12-2018, 02:05 PM   #108
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Fuggit!
You did great.
If I attempted a DIY, I'd have some cock eyed pipes. :
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      03-12-2018, 02:28 PM   #109
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Originally Posted by Noir View Post
Fuggit!
You did great.
If I attempted a DIY, I'd have some cock eyed pipes. :
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      03-12-2018, 02:31 PM   #110
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So your car is heavier and slower now? Excellent work

Quote:
Originally Posted by joey.i92 View Post
bends are 90 degrees but yes def notice slight decrease in accelerations at under 2.5 rpms. very minimal though, i wanted a functional exhaust rather than a dummy pipe. def happy with the outcome though
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