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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 > Ultimate Racing 335i Sedan Cat-Back Exhaust



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      01-25-2007, 02:26 PM   #1
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Cool Ultimate Racing 335i Sedan Cat-Back Exhaust

EDITED 1/27/07 with Dyno Charts

Hey guys,

As of today we are officially a vendor on E90Post.com. For those that are not familiar with us, we are a performance manufacturing company that has been specializing in forced induction since 1992. We are well known in the Subaru, Mitsubishi, Honda, and Nissan community for our turbo kits, and/or other products.

Our first product is our exhaust system for the 335i Sedan (Coupe owners, we'll have something for you next!). We would like to first thank all of those that provided feedback in our initial surveying post. Considering all the differing opinions, it was truly a difficult choice. However, we believe that we've come up with something good that will please the majority of enthusiasts.

Here are some key features:

- Full 304 Stainless Steel Construction
- Equal Length Piping
- Twin Polished Stainless Steel Mufflers
- Polished Stainless Steel Muffler Tips (Available in rolled, and single wall)
- Stainless Steel X-Pipe
- Stainless Steel Clamps
- TIG Welded
- 100% Bolt-On with ZERO modifications
- Great sound with ZERO rasp!
- 23 lbs Weight Savings (55 lbs vs 78 lbs stock)

Now the pictures:













You'll notice that the exhaust is designed to keep the pipes equal length, while retaining maximum flow. The muffler tips are angled with the same contour of the rear bumper. Each piece is TIG welded to perfection.


Of course, pictures can say a thousand words, but videos with sound are really where it's at. Enjoy!

Engine start
http://www.ultimate-racing.com/BMW/3...ngineStart.zip

Revving at idle
http://www.ultimate-racing.com/BMW/3...an-IdleRev.zip

Rolling start 1
http://www.ultimate-racing.com/BMW/3...edan-Roll1.zip

Rolling start 2
http://www.ultimate-racing.com/BMW/3...edan-Roll2.zip

Drive by 1
http://www.ultimate-racing.com/BMW/3...an-Blowby1.zip

Drive by 2
http://www.ultimate-racing.com/BMW/3...an-Blowby2.zip

In car
http://www.ultimate-racing.com/BMW/3...edan-Incar.zip

Note that sound clips will never do the exhaust any justice. You really do need to hear it in person to appreciate the exhaust's unique note. You will also hear the HKS Super Sequential Blow Off Valve that we have installed in the car. Oh, and lastly, this particular sedan is automatic


Here are the dyno results. It is important to keep note that no other modifications were done to this car. No tuning, just our cat-back exhaust installed. Try to look beyond peak numbers, and notice the power it has made throughout the powerband.






Our retail price on these exhausts will be set at a competitive $1500.00 USD.

To further support this community, E90Post.com forum members will receive a special discounted price of $1395.00 USD!

We are taking orders for these NOW.

Questions, and comments are welcome.

Darryl
www.ultimate-racing.com

PS: Downpipes with Metal High-Flow Cats coming soon!

Last edited by Ultimate Racing; 04-06-2007 at 08:31 AM.
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      01-25-2007, 02:36 PM   #2
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around what month are you planning to start selling exhaust for the coupe? and are those 2.5 or 3inch?
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      01-25-2007, 02:42 PM   #3
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Looks like a slick system! Do you have pics of the factory catback so I can do a side-by-side without getting my shirt dirty?
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      01-25-2007, 02:47 PM   #4
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What kind of mufflers were used?
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      01-25-2007, 02:56 PM   #5
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any dyno runs made on the system, without any other mods.
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      01-25-2007, 03:32 PM   #6
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Quote:
Originally Posted by Ivan01 View Post
around what month are you planning to start selling exhaust for the coupe? and are those 2.5 or 3inch?
We plan to have something available for the coupe early February. Won't be long.

These are dual 2.5".

Darryl
www.ultimate-racing.com
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      01-25-2007, 03:33 PM   #7
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Quote:
Originally Posted by Terry Burger View Post
Looks like a slick system! Do you have pics of the factory catback so I can do a side-by-side without getting my shirt dirty?
I'll take that picture for you when I get a chance.

Darryl
www.ultimate-racing.com
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      01-25-2007, 03:33 PM   #8
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1) Weight difference versus stock?
2) db difference?
3) Does it retain the 1 active exhaust pipe until warmed up system?

These look and sound great!
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      01-25-2007, 03:34 PM   #9
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Quote:
Originally Posted by SoCal335i View Post
What kind of mufflers were used?
These are our own mufflers that we have made for us. We use them on other cars as well.

Darryl
www.ultimate-racing.com
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      01-25-2007, 03:34 PM   #10
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Quote:
Originally Posted by redlinejunkie View Post
any dyno runs made on the system, without any other mods.
Not yet. Will have results for you soon.

Darryl
www.ultimate-racing.com
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      01-25-2007, 03:35 PM   #11
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Quote:
Originally Posted by sdiver68 View Post
1) Weight difference versus stock?
2) db difference?
3) Does it retain the 1 active exhaust pipe until warmed up system?

These look and sound great!
1) I will have weight comparisons for you soon.
2) Believe it or not, our dB meter is on order and we'll have it soon!
3) No, it does not.

Darryl
www.ultimate-racing.com
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      01-25-2007, 03:38 PM   #12
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I'll say one thing, it does sound great.
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      01-25-2007, 03:42 PM   #13
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Quote:
Originally Posted by Ultimate Racing View Post
1) I will have weight comparisons for you soon.
2) Believe it or not, our dB meter is on order and we'll have it soon!
3) No, it does not.

Darryl
www.ultimate-racing.com
Thanks!

On q3, my car like every other 335i out there has some "issues" with cold engine smoothness, even after the update was installed. In your experience with your system, does it change this behavior at all? For better or worse?
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      01-25-2007, 03:48 PM   #14
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Darryl what size are those tips on the exhaust?
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      01-25-2007, 03:56 PM   #15
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are you guys planning to make 3" inch later on? and when are you planning to start selling the downpipes with metal high-flow cats, and what size are they going to be? I love the way they sounded great job!
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      01-25-2007, 03:59 PM   #16
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Anyone else think $1500 is a bit much?
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      01-25-2007, 04:01 PM   #17
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is it a full turbo back exhaust? performance gains?
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      01-25-2007, 04:04 PM   #18
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Quote:
Originally Posted by S4to335 View Post
Anyone else think $1500 is a bit much?
IMO for $1500 is a bit much for that exhaust esp since i feel its not loud enough, and personally i think it needs some rasp.
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      01-25-2007, 04:10 PM   #19
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Quote:
Originally Posted by S4to335 View Post
Anyone else think $1500 is a bit much?
for dual exhaust, nooo. Plus he is selling it for $1395 which is a good price.
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      01-25-2007, 04:13 PM   #20
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Quote:
Originally Posted by Ivan01 View Post
for dual exhaust, nooo. Plus he is selling it for $1395 which is a good price.
im not really feeling the angled tips, can u get straight tips? angled tips just remind me of those JDM cars
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      01-25-2007, 04:26 PM   #21
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what blow out valve is on the car? sounds good
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      01-25-2007, 04:30 PM   #22
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like he sayed it's hks bov, and it's not full turbo back. But he is making the downpipe soon
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