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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 > My HPF Gen II Exhaust Is Here!!!



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      04-17-2012, 10:38 AM   #67
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sounds good! wonder how catless downpipes would change the characterisitics of this exhaust.
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      04-17-2012, 11:48 AM   #68
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Quote:
Originally Posted by nafoo View Post
I have bolded the most important info.

The first version didn't sound too bad with stock downpipes...
My bad once again lol, I guess I need to read more. It does sound amazing with stock downpipes though, wonder what it would be with catless. That would be the true test then to see if there is any rasp.

As for the V8 comment, you need to go hear the M3 V8, it's deep, but no where near what a V8 sounds like.
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      04-17-2012, 12:21 PM   #69
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Quote:
Originally Posted by Wes335XI
Quote:
Originally Posted by nafoo View Post
I have bolded the most important info.

The first version didn't sound too bad with stock downpipes...
My bad once again lol, I guess I need to read more. It does sound amazing with stock downpipes though, wonder what it would be with catless. That would be the true test then to see if there is any rasp.

As for the V8 comment, you need to go hear the M3 V8, it's deep, but no where near what a V8 sounds like.
+1, I'm looking to get this if rasp is minimal with catless downpipes..

also, a stock m3 doesn't even sound like a v8 it's so quiet. S5's v8, that's a good sound.
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      04-17-2012, 12:49 PM   #70
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Quote:
Originally Posted by AU335i View Post
sounds good! wonder how catless downpipes would change the characterisitics of this exhaust.
Here's HPF's video of the exhaust. Skip to 8:48 in the video to hear it rev. I think this car has VRSF downpipes:

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      04-17-2012, 02:36 PM   #71
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would be nice if somebody would make vids with hpf 2 exhaust + catless exhaust, but i think nothing is really hear as u can hear beeing in person so its sad that i cant listen i think i would love a sound as i know 1th generation exhaust was bad with catless dps so would be nice to see some reviews with catless + 2th generation hpf

p.s OP you have stock dps or catlles?
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      04-17-2012, 03:52 PM   #72
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Quote:
Originally Posted by brandontoscano View Post
Here's HPF's video of the exhaust. Skip to 8:48 in the video to hear it rev. I think this car has VRSF downpipes:

Being inside the shop changes a lot.

I would also like a cat less video. Time will tell.
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      04-17-2012, 04:32 PM   #73
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sounds deep
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      04-17-2012, 04:36 PM   #74
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WTB video of this exhaust paired with cat less DPs, under load (not just revving in a drive way).
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      04-17-2012, 06:13 PM   #75
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Quote:
Originally Posted by BMWorNOTHING View Post
WTB video of this exhaust paired with cat less DPs, under load (not just revving in a drive way).
The video above has catless downpipes (VRSF DPs) and it has video of it driving and revving. Just skip to 8:48 and watch until the end.
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      04-17-2012, 06:43 PM   #76
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Quote:
Originally Posted by brandontoscano View Post
The video above has catless downpipes (VRSF DPs) and it has video of it driving and revving. Just skip to 8:48 and watch until the end.
I can't tell if it's raspy or not, lol. BTW, are you sure that car has cat less DPs?
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      04-17-2012, 06:51 PM   #77
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Quote:
Originally Posted by brandontoscano View Post
The video above has catless downpipes (VRSF DPs) and it has video of it driving and revving. Just skip to 8:48 and watch until the end.
hard to tell how it really sounds since GoPro kinda muffles the sound.
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      04-17-2012, 07:12 PM   #78
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Quote:
Originally Posted by BMWorNOTHING View Post
I can't tell if it's raspy or not, lol. BTW, are you sure that car has cat less DPs?
Yeah, I'm almost positive. I saw the guy in the video's post on here about going to HPF and getting it installed and test driving it. His username is something like "Wedge" and it has numbers at the end. He said he had catless downpipes.
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      04-17-2012, 07:40 PM   #79
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Quote:
Originally Posted by AU335i

hard to tell how it really sounds since GoPro kinda muffles the sound.
The GoPro was not in the case and if you can hook this video up to a nice home theater system you can really hear the real sound.

I had a great time putting this exhaust in with chris. Yes that stud was a huge pain in the ass, but shit happens. After installing one of these and taking a test drive after, I know i would love to own this system.
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      04-17-2012, 09:39 PM   #80
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Quote:
Originally Posted by Wes335XI View Post
My bad once again lol, I guess I need to read more. It does sound amazing with stock downpipes though, wonder what it would be with catless. That would be the true test then to see if there is any rasp.

As for the V8 comment, you need to go hear the M3 V8, it's deep, but no where near what a V8 sounds like.
I probably should not have even brought up the comparison. I have driven a stock M3 v8, and I think this exhaust sounds better than that. Does it sound better than a RS4 with magnaflows or milltek, hell no. Bottom line: I love how this exhaust sounds especially, in the 4500-6000 rpm range.
The offer still stands: Anyone near the Louisville, KY area is more than welcome to come on over for a test drive
The bourbon tasting will of course be after the drive
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      04-17-2012, 10:11 PM   #81
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Quote:
Originally Posted by Tk502 View Post
I probably should not have even brought up the comparison. I have driven a stock M3 v8, and I think this exhaust sounds better than that. Does it sound better than a RS4 with magnaflows or milltek, hell no. Bottom line: I love how this exhaust sounds especially, in the 4500-6000 rpm range.
The offer still stands: Anyone near the Louisville, KY area is more than welcome to come on over for a test drive
The bourbon tasting will of course be after the drive
few questions. how much louder than stock is it (the louder the better)? do you get the gurgling/popping noise when you let off the gas? are you planning to get catless dp's anytime soon?
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      04-17-2012, 11:41 PM   #82
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sounds cool but catless downpipes is where it's at. changes everything
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      04-18-2012, 04:18 AM   #83
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Quote:
Originally Posted by triggz View Post
sounds cool but catless downpipes is where it's at. changes everything
second that most ppl in here have catless, if u stock dps and this hpf exhaust maybe u are okay, but as somebody told we need time to see how other reviews will be. most important is to hear in person, wonder anybody from EU buying it or no....
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      04-19-2012, 06:47 AM   #84
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Quote:
Originally Posted by jetblackcoupe View Post
few questions. how much louder than stock is it (the louder the better)? do you get the gurgling/popping noise when you let off the gas? are you planning to get catless dp's anytime soon?
It is noticably luder than stock, but not raspy. There is some minor gurgling/ popping but just when your in first and let off the gas. Ex when you're between to city block lights, sometimes I just leave it first.
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      04-21-2012, 01:00 PM   #85
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Quote:
Originally Posted by Tk502
Quote:
Originally Posted by jetblackcoupe View Post
few questions. how much louder than stock is it (the louder the better)? do you get the gurgling/popping noise when you let off the gas? are you planning to get catless dp's anytime soon?
It is noticably luder than stock, but not raspy. There is some minor gurgling/ popping but just when your in first and let off the gas. Ex when you're between to city block lights, sometimes I just leave it first.

I love that sound when you let off of the throttle, the pops and gurgles always turns heads. I went to a cars and coffee not to long ago and the supercar(ferrari's, lambo's and porches) owners were all coming over to see what car was making that roar and they were surprised to see that it was my fbo 335i with the gen 1 exhaust. I love it and have decided to leave it as is(no resonator)...after getting the thumbs up by the supercar owners. I can't wait to see how it sounds when I put HPF's single on! As soon as I get the kit I will be posting videos of the single turbo with the gen 1 exhaust. I've found a shop willing to put it on and Dyno it. Now im just waiting on Kirk to hook it up...those that are headed to mfest..enjoy!
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      04-22-2012, 07:49 AM   #86
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Quote:
Originally Posted by Penn999 View Post
I love that sound when you let off of the throttle, the pops and gurgles always turns heads. I went to a cars and coffee not to long ago and the supercar(ferrari's, lambo's and porches) owners were all coming over to see what car was making that roar and they were surprised to see that it was my fbo 335i with the gen 1 exhaust. I love it and have decided to leave it as is(no resonator)...after getting the thumbs up by the supercar owners. I can't wait to see how it sounds when I put HPF's single on! As soon as I get the kit I will be posting videos of the single turbo with the gen 1 exhaust. I've found a shop willing to put it on and Dyno it. Now im just waiting on Kirk to hook it up...those that are headed to mfest..enjoy!
wonder how u can drive long distances dont your ear pop out? cos it should be loud as hell, maybe second gen is better...
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      02-04-2013, 03:13 PM   #87
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For the love of god, does anyone have hpf gen 2 and catless dp's????
VIDS NAOOO
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      02-04-2013, 05:26 PM   #88
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Quote:
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For the love of god, does anyone have hpf gen 2 and catless dp's????
VIDS NAOOO
+111111111111
Look at my thread for some videos
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