any clip of hfc plus OEM exhaust mod

1MOREMOD · 10-03-2012, 12:48 PM

i have the challenge sport and would like it to be a little louder. anyone have both a primary cat delete and oem exhuast mod clip i can hear to help me decide. any draw back here. right now i notice a little tinny sound at certain rpms.

Jon@Bimmersport Automotive · 10-03-2012, 01:08 PM

I will try and get some clips for you when I meet my friend this weekend. It sounds phenomenal, although the videos may not do it justice.

VegasEgg · 10-05-2012, 06:48 PM

I don't have catless primaries but HFC primary, deleted secondaries/quad resonated x-pipe with the OEM exhaust mod. I can post a vid of that if you like. I also have a sound clip from when i dyno'd the car. I had to add another set of resonators to the x-pipe because I thought it sounded way to high pitched & raspy. I love the exhaust note now though.

1MOREMOD · 10-05-2012, 07:20 PM

sure lets hear it.

raywong · 10-06-2012, 07:55 AM

I have primary cats deleted + oem mod. Very bright and loud with widows open.
Listen here:

raywong · 10-07-2012, 07:42 AM

one more:

1MOREMOD · 10-08-2012, 02:10 PM

sounds good i may need to do this in the off season this winter along with my camber plates.

gatorfast · 10-08-2012, 06:05 PM

Those vids sound similar to mine with oem mod and secondary cat delete. Maybe a little louder and more raspy though.

cghempel · 10-08-2012, 08:29 PM

I have heard this set up in person...sounds awesome but is LOUD!

raywong · 10-09-2012, 01:20 AM

It is a lot louder than stock, took me some time to get used to. The only bad thing about this mod is, it is either very quiet or very loud, no in between. Sometimes I don't like to attract too much attention driving this car, but whenever I tried to pass anyone at any speed, my car screams out "look at me I modded my bmw get the fxxk out of my way". It is embarrassing! A lot of dirty look from other road users. It is different when driving a loud Ferrari, it is expected to be loud, people smile instead of dirty look. If I could start all over again, I would replace the smaller perforated sections instead of the larger one, and I wouldn't over stuff the absorption chamber with extra fibre. That way you get no drone, bright tone, and scream only at higher rpm.

10-03-2012, 12:48 PM	#1
1MOREMOD - 11817 Rep 23,187 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	any clip of hfc plus OEM exhaust mod i have the challenge sport and would like it to be a little louder. anyone have both a primary cat delete and oem exhuast mod clip i can hear to help me decide. any draw back here. right now i notice a little tinny sound at certain rpms. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC bars\|GC race control arms\|GC bushings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster\|Euro header\|BW exhaust\|K&N c.a.i.\|Epic race tune\|Rouge pulleys\|Seibon CF hood\|CSL bumper\|apr gt 250 & splitter\|ST-40\|XR-2\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|BMWpedals\|BW studs\|
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10-03-2012, 01:08 PM	#2
Jon@Bimmersport Automotive Banned 44 Rep 342 Posts Drives: E90 M3 Active Supercharged Join Date: Jun 2008 Location: Mississauga, On Canada iTrader: (0) Garage List 2003.5 BMW M3 [10.00]	I will try and get some clips for you when I meet my friend this weekend. It sounds phenomenal, although the videos may not do it justice.
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10-05-2012, 06:48 PM	#3
VegasEgg Lieutenant 51 Rep 571 Posts Drives: 640i Gran Coupe Join Date: Aug 2011 Location: USA iTrader: (-1) Garage List '11 Frozen Grey Edi ... [1.00]	I don't have catless primaries but HFC primary, deleted secondaries/quad resonated x-pipe with the OEM exhaust mod. I can post a vid of that if you like. I also have a sound clip from when i dyno'd the car. I had to add another set of resonators to the x-pipe because I thought it sounded way to high pitched & raspy. I love the exhaust note now though.
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10-05-2012, 07:20 PM	#4
1MOREMOD - 11817 Rep 23,187 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	sure lets hear it. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC bars\|GC race control arms\|GC bushings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster\|Euro header\|BW exhaust\|K&N c.a.i.\|Epic race tune\|Rouge pulleys\|Seibon CF hood\|CSL bumper\|apr gt 250 & splitter\|ST-40\|XR-2\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|BMWpedals\|BW studs\|
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10-06-2012, 07:55 AM	#5
raywong Private First Class 42 Rep 132 Posts Drives: E92M3 Join Date: Jun 2011 Location: Hong Kong iTrader: (0)	I have primary cats deleted + oem mod. Very bright and loud with widows open. Listen here: Last edited by raywong; 10-07-2012 at 07:40 AM..
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10-07-2012, 07:42 AM	#6
raywong Private First Class 42 Rep 132 Posts Drives: E92M3 Join Date: Jun 2011 Location: Hong Kong iTrader: (0)	one more:
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10-08-2012, 02:10 PM	#7
1MOREMOD - 11817 Rep 23,187 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	sounds good i may need to do this in the off season this winter along with my camber plates. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC bars\|GC race control arms\|GC bushings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster\|Euro header\|BW exhaust\|K&N c.a.i.\|Epic race tune\|Rouge pulleys\|Seibon CF hood\|CSL bumper\|apr gt 250 & splitter\|ST-40\|XR-2\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|BMWpedals\|BW studs\|
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10-08-2012, 06:05 PM	#8
gatorfast Major General 4995 Rep 6,862 Posts Drives: 718 Cayman Join Date: Jan 2008 Location: SoFla iTrader: (4)	Those vids sound similar to mine with oem mod and secondary cat delete. Maybe a little louder and more raspy though.
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10-08-2012, 08:29 PM	#9
cghempel Second Lieutenant 25 Rep 227 Posts Drives: M3 Join Date: Apr 2010 Location: - iTrader: (1)	I have heard this set up in person...sounds awesome but is LOUD!
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10-09-2012, 01:20 AM	#10
raywong Private First Class 42 Rep 132 Posts Drives: E92M3 Join Date: Jun 2011 Location: Hong Kong iTrader: (0)	It is a lot louder than stock, took me some time to get used to. The only bad thing about this mod is, it is either very quiet or very loud, no in between. Sometimes I don't like to attract too much attention driving this car, but whenever I tried to pass anyone at any speed, my car screams out "look at me I modded my bmw get the fxxk out of my way". It is embarrassing! A lot of dirty look from other road users. It is different when driving a loud Ferrari, it is expected to be loud, people smile instead of dirty look. If I could start all over again, I would replace the smaller perforated sections instead of the larger one, and I wouldn't over stuff the absorption chamber with extra fibre. That way you get no drone, bright tone, and scream only at higher rpm.
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