HPF exhaust tips hanging low?

robc1976 · 10-09-2014, 07:09 PM

No matter what I do I can't get the exhaust tips to sit in a decent position, they hand low. Anyone else have this issue with the HPF exhaust?

Stucks · 10-09-2014, 07:46 PM

subframe bushings possibly causing this?

deltalima0 · 10-09-2014, 08:26 PM

Yea I think it is common when I was thinking of buying an HPF exhaust I searched a few threads, there were a few responses where it was mentioned about how low it hung and easy to scrape.

How does it sound? I went with the Cobb exhaust they had a smoking deal on it. It looks amazing and sounds great to boot not overly loud but since I am Katless the gas smell does bug me

deltalima0 · 10-09-2014, 08:38 PM

Pics from another member

http://www.e90post.com/forums/showthread.php?t=483368

robc1976 · 10-09-2014, 10:15 PM

Quote:

Originally Posted by deltalima0

Pics from another member

http://www.e90post.com/forums/showthread.php?t=483368

How the he'll did he get his tips angled up....I can't make mine do that in the least. There is no adjustment? Maybe he angled them up?

Whiteout335i · 10-09-2014, 10:17 PM

Mine sits low just like yours. Also my mid section hangs low too

robc1976 · 10-09-2014, 10:19 PM

Quote:

Originally Posted by deltalima0

Yea I think it is common when I was thinking of buying an HPF exhaust I searched a few threads, there were a few responses where it was mentioned about how low it hung and easy to scrape.

How does it sound? I went with the Cobb exhaust they had a smoking deal on it. It looks amazing and sounds great to boot not overly loud but since I am Katless the gas smell does bug me

I haven't scraped to much, only issue I had was the AR dps where not positioned correctly and when exhaust was tightened pulled dp off turbo slightly causing exhaust leak. Dps have to be in perfect position with this exhaust. This exhaust gets a bad rap, it's not that loud and not that much drone?

robc1976 · 10-09-2014, 10:29 PM

Quote:

Originally Posted by Whiteout335i

Mine sits low just like yours. Also my mid section hangs low too

mine tips won't sit low long

F80M · 10-10-2014, 12:54 AM

Quote:

Originally Posted by robc1976

I haven't scraped to much, only issue I had was the AR dps where not positioned correctly and when exhaust was tightened pulled dp off turbo slightly causing exhaust leak. Dps have to be in perfect position with this exhaust. This exhaust gets a bad rap, it's not that loud and not that much drone?

Would it make different if you swap the hanger from left to right and vise versa?
How bad is its sound? And compare to your previous setup?

robc1976 · 10-10-2014, 03:16 AM

Quote:

Originally Posted by -StanceCity-

Would it make different if you swap the hanger from left to right and vise versa?
How bad is its sound? And compare to your previous setup?

I have tried just about everything, going to make custom bracket. sound is unbelievable actually. puts my other system to shame!

HeavyMetalRocker · 10-11-2014, 02:33 AM

Quote:

Originally Posted by robc1976

Quote:

Originally Posted by -StanceCity-

Would it make different if you swap the hanger from left to right and vise versa?
How bad is its sound? And compare to your previous setup?

I have tried just about everything, going to make custom bracket. sound is unbelievable actually. puts my other system to shame!

I need to see pics of the mid section mounting bracket and the two rear brackets. Also, pics of the red rubber stoppers. That is not normal...

robc1976 · 10-11-2014, 09:35 PM

Quote:

Originally Posted by HeavyMetalRocker

I need to see pics of the mid section mounting bracket and the two rear brackets. Also, pics of the red rubber stoppers. That is not normal...

will do, it sucks

robc1976 · 10-12-2014, 04:55 PM

Quote:

Originally Posted by HeavyMetalRocker

I need to see pics of the mid section mounting bracket and the two rear brackets. Also, pics of the red rubber stoppers. That is not normal...

Here ya go buddy

HeavyMetalRocker · 10-13-2014, 02:21 AM

Damn man... everything looks right... The only thing I can think of is the turn angle of that second to last section. The one with the resonator. Also, that "isolator" is complete shit, unbolt it from both sides cut all the rubber crap off and get an 1.5" nut and bolt, I used skateboard bearing spacers to fill the gap, and tighten her down. The rubber on the isolator will tear off in a few months.

HeavyMetalRocker · 10-13-2014, 02:22 AM

See if you can see the angle they have that section at here.

robc1976 · 10-13-2014, 02:25 AM

Quote:

Originally Posted by HeavyMetalRocker

Damn man... everything looks right... The only thing I can think of is the turn angle of that second to last section. The one with the resonator. Also, that "isolator" is complete shit, unbolt it from both sides cut all the rubber crap off and get an 1.5" nut and bolt, I used skateboard bearing spacers to fill the gap, and tighten her down. The rubber on the isolator will tear off in a few months.

Post some pics!

robc1976 · 10-13-2014, 03:36 AM

My mid section slightly touches inside tunnel.... AR dps I believe are to blame as they put the Y-pipe in that position

robc1976 · 10-13-2014, 03:37 AM

Quote:

Originally Posted by HeavyMetalRocker

Damn man... everything looks right... The only thing I can think of is the turn angle of that second to last section. The one with the resonator. Also, that "isolator" is complete shit, unbolt it from both sides cut all the rubber crap off and get an 1.5" nut and bolt, I used skateboard bearing spacers to fill the gap, and tighten her down. The rubber on the isolator will tear off in a few months.

I could use a solid bushing.

HeavyMetalRocker · 10-13-2014, 01:18 PM

Quote:

Originally Posted by robc1976

Post some pics!

My car is still awaiting turbos at the shop.... I should hopefully have it back or see it at least this coming weekend.

HeavyMetalRocker · 10-13-2014, 04:10 PM

Quote:

Originally Posted by robc1976

Quote:

Originally Posted by HeavyMetalRocker

Damn man... everything looks right... The only thing I can think of is the turn angle of that second to last section. The one with the resonator. Also, that "isolator" is complete shit, unbolt it from both sides cut all the rubber crap off and get an 1.5" nut and bolt, I used skateboard bearing spacers to fill the gap, and tighten her down. The rubber on the isolator will tear off in a few months.

I could use a solid bushing.

Anything that's solid and you put a nut and bolt all the way through it works. That rubber piece doesn't have any support through it so it tears and falls apart. Plus, it doesn't really isolate anything lol.

N8N · 10-13-2014, 04:24 PM

If you rework the isolators I would use two pieces of isolating material if you have the room, one on each side of one of the tabs, with a longer bolt... done DIY motor mounts for a Studebaker that way, same design but bigger, they're loaded in tension & always rip the driver's side apart. with two pieces of rubber then it'll isolate no matter which way the exhaust is moving relative to the body; with only one, if the exhaust is hanging you'll have direct metal to metal transmission of vibrations through the bolt.

robc1976 · 10-14-2014, 03:45 AM

I got the tips better today but the pipe right after Y-pipe hits tunnel slightly and it is due to the placement of the AR Dps. No matter what, when you bolt the AR Dps to the Y pipe it pulls the exhaust over, even if you adjust and loosen the dps 1st.

10-09-2014, 07:09 PM	#1
robc1976 DIYER 638 Rep 5,521 Posts Drives: E90 335i Join Date: Mar 2012 Location: Illinois iTrader: (14)	HPF exhaust tips hanging low? No matter what I do I can't get the exhaust tips to sit in a decent position, they hand low. Anyone else have this issue with the HPF exhaust? Attached Images __________________ JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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10-09-2014, 07:46 PM	#2
Stucks Lieutenant Colonel 180 Rep 1,911 Posts Drives: 2017 F30 340i Xdrive Join Date: Oct 2010 Location: Montgomery County, MD iTrader: (12)	subframe bushings possibly causing this? __________________ Current: 2017 F30 340i xdrive Previous: 2008 e92 335i coupe: RB turbos, mach 116 race fuel, methanol, alot of boost. Previous: 2003 Honda Accord V6 coupe: AEM V2, zex 75 wet shot (sold)
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10-09-2014, 08:26 PM	#3
deltalima0 Lieutenant 97 Rep 546 Posts Drives: 335i Join Date: Sep 2010 Location: Atlanta GA iTrader: (2)	Yea I think it is common when I was thinking of buying an HPF exhaust I searched a few threads, there were a few responses where it was mentioned about how low it hung and easy to scrape. How does it sound? I went with the Cobb exhaust they had a smoking deal on it. It looks amazing and sounds great to boot not overly loud but since I am Katless the gas smell does bug me __________________ Doc Race 6266 Single Turbo Kit \| JB4 G5/MHD \| FuelIt stg 3 LPFP \| Cpe/BMS PI \| 100% E85 \| DSS Axles \| AR DPs \| Cpe FMIC \| Tial BOV N54 World Record ET: 10.721 \| Best MPH 130.92 Last edited by deltalima0; 10-09-2014 at 08:35 PM..
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10-09-2014, 08:38 PM	#4
deltalima0 Lieutenant 97 Rep 546 Posts Drives: 335i Join Date: Sep 2010 Location: Atlanta GA iTrader: (2)	Pics from another member http://www.e90post.com/forums/showthread.php?t=483368 __________________ Doc Race 6266 Single Turbo Kit \| JB4 G5/MHD \| FuelIt stg 3 LPFP \| Cpe/BMS PI \| 100% E85 \| DSS Axles \| AR DPs \| Cpe FMIC \| Tial BOV N54 World Record ET: 10.721 \| Best MPH 130.92
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10-09-2014, 10:17 PM	#6
Whiteout335i Second Lieutenant 30 Rep 289 Posts Drives: 2010 335i alpine white Join Date: Jul 2013 Location: Nashville, tn iTrader: (1)	Mine sits low just like yours. Also my mid section hangs low too
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10-13-2014, 02:21 AM	#14
HeavyMetalRocker Captain 39 Rep 632 Posts Drives: 2007 BMW 335i E90 6MT Join Date: Nov 2012 Location: Dallas, Texas iTrader: (0)	Damn man... everything looks right... The only thing I can think of is the turn angle of that second to last section. The one with the resonator. Also, that "isolator" is complete shit, unbolt it from both sides cut all the rubber crap off and get an 1.5" nut and bolt, I used skateboard bearing spacers to fill the gap, and tighten her down. The rubber on the isolator will tear off in a few months. __________________ 2007 335i e90 6mt \| Motiv 750 XR8267 \| RB PCV \| JB4 G5 \| MHD Pump Flash \| Walbro 255lph \| VRSF CP & Tial BOV \| NGK Plugs \| Custom Side Exhaust \| CxRacing FMIC \| Spec 2+ & SSMFW \| StopTech Drilled/Slotted Rotors \| Hawk Performance Pads \| DEFIV Lockdown kit \| Mtec V3 \| Apex PS7s \| 35/15% Llumar ceramic
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10-13-2014, 02:22 AM	#15
HeavyMetalRocker Captain 39 Rep 632 Posts Drives: 2007 BMW 335i E90 6MT Join Date: Nov 2012 Location: Dallas, Texas iTrader: (0)	See if you can see the angle they have that section at here. __________________ 2007 335i e90 6mt \| Motiv 750 XR8267 \| RB PCV \| JB4 G5 \| MHD Pump Flash \| Walbro 255lph \| VRSF CP & Tial BOV \| NGK Plugs \| Custom Side Exhaust \| CxRacing FMIC \| Spec 2+ & SSMFW \| StopTech Drilled/Slotted Rotors \| Hawk Performance Pads \| DEFIV Lockdown kit \| Mtec V3 \| Apex PS7s \| 35/15% Llumar ceramic
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10-13-2014, 03:36 AM	#17
robc1976 DIYER 638 Rep 5,521 Posts Drives: E90 335i Join Date: Mar 2012 Location: Illinois iTrader: (14)	My mid section slightly touches inside tunnel.... AR dps I believe are to blame as they put the Y-pipe in that position __________________ JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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10-13-2014, 04:24 PM	#21
N8N Lieutenant Colonel 179 Rep 1,843 Posts Drives: 2009 E92 335i 6MT Join Date: Sep 2012 Location: Berwyn Heights, MD iTrader: (2)	If you rework the isolators I would use two pieces of isolating material if you have the room, one on each side of one of the tabs, with a longer bolt... done DIY motor mounts for a Studebaker that way, same design but bigger, they're loaded in tension & always rip the driver's side apart. with two pieces of rubber then it'll isolate no matter which way the exhaust is moving relative to the body; with only one, if the exhaust is hanging you'll have direct metal to metal transmission of vibrations through the bolt.
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10-14-2014, 03:45 AM	#22
robc1976 DIYER 638 Rep 5,521 Posts Drives: E90 335i Join Date: Mar 2012 Location: Illinois iTrader: (14)	I got the tips better today but the pipe right after Y-pipe hits tunnel slightly and it is due to the placement of the AR Dps. No matter what, when you bolt the AR Dps to the Y pipe it pulls the exhaust over, even if you adjust and loosen the dps 1st. __________________ JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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