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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 > catless dps+supersprint race and hpf exhaust + catless dps



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      01-26-2012, 03:30 PM   #1
**335i**
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Question catless dps+supersprint race and hpf exhaust + catless dps

anybody has it? wonder to hear it.......

p.s also this setup hpf exhaust + catless dps found this
any commnets on how it feels long driving?

thanks
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Last edited by **335i**; 01-26-2012 at 03:48 PM.
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      01-26-2012, 05:18 PM   #2
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Never heard it in person, but it definitely sounds good through my speakers...
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      01-26-2012, 05:36 PM   #3
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yes planing to get hpf......hope i can put any tips that i want on it as they sell with single tips but if tips that cyba sells is 3 inch it should be okay http://www.horsepowerfreaks.com/imag...haust_1_16.jpg
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      01-26-2012, 06:42 PM   #4
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Quote:
Originally Posted by **335i** View Post
yes planing to get hpf......hope i can put any tips that i want on it as they sell with single tips but if tips that cyba sells is 3 inch it should be okay http://www.horsepowerfreaks.com/imag...haust_1_16.jpg
they have a Gen2 coming out soon.
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      01-26-2012, 06:48 PM   #5
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You do realise that hof is a straight pipe and that any reputable ahop can custom make one for much cheaper.
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      01-26-2012, 07:56 PM   #6
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Quote:
Originally Posted by Beemw335 View Post
You do realise that hof is a straight pipe and that any reputable ahop can custom make one for much cheaper.
I would have agreed with you until i heard a true straight pipe exhaust. A straight pipe exhaust on the N54 with catless dp's sounds like a crap. Extremely raspy and nothing compared to the way this 3 sounds.


PM me when you here both systems and agree .
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      01-26-2012, 08:00 PM   #7
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Quote:
Originally Posted by MR.Slick1029 View Post
I would have agreed with you until i heard a true straight pipe exhaust. A straight pipe exhaust on the N54 with catless dp's sounds like a crap. Extremely raspy and nothing compared to the way this 3 sounds.


PM me when you here both systems and agree .
I have heard straight setups and the HPF system.

I love the HPF system so I guess I will be biased.

But a full "custom" exhaust should be the same kinda thing that the HPF system is, If you can find a shop that does as good of work as they do
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      01-26-2012, 08:07 PM   #8
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Quote:
Originally Posted by MR.Slick1029 View Post
I would have agreed with you until i heard a true straight pipe exhaust. A straight pipe exhaust on the N54 with catless dp's sounds like a crap. Extremely raspy and nothing compared to the way this 3 sounds.


PM me when you here both systems and agree .
My friend, a metal pipe is a metal pipe.
Were not comparing two mufflers here lol.
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      01-27-2012, 02:51 AM   #9
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As the driver and owner of the car in that video, do not get HPF exhaust if you plan on running it with catless DPs, I repeat, DO NOT. The drone is so unbearable your ears bleed. I only had it on the car a week and I had to take it off, I had to drive on the highway with ear plugs in.
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      01-27-2012, 07:13 AM   #10
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Quote:
Originally Posted by Bakeme521 View Post
As the driver and owner of the car in that video, do not get HPF exhaust if you plan on running it with catless DPs, I repeat, DO NOT. The drone is so unbearable your ears bleed. I only had it on the car a week and I had to take it off, I had to drive on the highway with ear plugs in.
shit....... what is gen 2 coming soon? which exhaust you guys recomend then with catless dps (AR)? as i checked supersprint is really overpriced....

maybe idea: weld cybas tips (quads) to stock exhaust and put m tech with carbon diff and leave everything on i like this style http://www.mfabrika.lt/bmw/4a.jpg, http://www.mfabrika.lt/bmw/5a.jpg , http://www.mfabrika.lt/bmw/7.jpg also maybe remove sec cats

p.s all aftermarket exhaust system has NO small tube http://imageshack.us/f/846/valve.jpg/ SECTION 3, in a left exhaust side when u remove it what guys u do with that tube zip tie?
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Last edited by **335i**; 01-27-2012 at 07:31 AM.
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      01-27-2012, 08:07 AM   #11
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just get a Bastuck like i have. Keep the OEM cats in the midpipes. Its an axleback .
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      01-27-2012, 02:39 PM   #12
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Quote:
Originally Posted by Beemw335 View Post
My friend, a metal pipe is a metal pipe.
Were not comparing two mufflers here lol.
Trust me , i was in the same boat. I was actually getting into heated debates with people on how a pipe is just a pipe . However hpf figured out a way to give you straight pipe exhaust without rasp.
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      01-27-2012, 02:43 PM   #13
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Yeah. It's so loud you can't hear rasp lol.
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      01-27-2012, 03:52 PM   #14
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Quote:
Originally Posted by MR.Slick1029 View Post
Trust me , i was in the same boat. I was actually getting into heated debates with people on how a pipe is just a pipe . However hpf figured out a way to give you straight pipe exhaust without rasp.
I will admit there was very little rasp, just LOUD and dirty.
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      01-27-2012, 03:56 PM   #15
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Quote:
Originally Posted by Bakeme521 View Post
I will admit there was very little rasp, just LOUD and dirty.
so catless no way with hpf?

from hpf:

this video
was posted 5 months ago. since then the exhaust has been redesigned. we placed a long resonator in the mid pipe to clean up the sound and dampen the noise. that being sad it is still going to be louder than your factory exhaust. this is designed to be used with both the single and twin turbos. the new, redesign exhaust will be available in late march or early april
keep in mind that as i said earlier the ultimate design of this exhaust is to be used in excess of 600 whp. so it will be very high flowing and at certain points in the power band very loud.
though the new one is much better than the original as far as drone.

we redesigned the exhaust to be quieter and not "drone" as much

Wonder how it will sound....
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Last edited by **335i**; 01-27-2012 at 04:20 PM.
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      04-07-2013, 06:14 AM   #16
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someone have the supersprint race version for the 335i ?
would be interesting..
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