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.

Frostbite · 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 Major General Drives: at a moderate pace Join Date: Mar 2009 Location: garage Posts: 6,528 iTrader: (3)	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 race control arms\|GC bushings & bearings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster knob\|Euro header\|Eisenmann sport\|K&N c.a.i.\|Seibon CF hood\|CSL bumper\|CSL brakes\|RS19s\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|race pulleys\|BMWpedals\|Apex studs\|1995 Ford Probe gt chump car\|
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10-05-2012, 06:48 PM	#3
Frostbite EuroSquad Drives: Frozen Grey Edition M3 Join Date: Aug 2011 Location: Vegas Posts: 562 iTrader: (0) Garage List '11 Frozen Grey Edi ... [0.50]	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. __________________ 2011 Frozen Grey Edition M3 1 of 30 Ranz Motorsports Custom One-Off Front Bumper & Side Skirts/OE Tuning ECU & DCT Tune/MS Stage 1 Intake Kit & Pulleys/Fabspeed HFC & X-Pipe/OEM Exhaust Mod/Alekshop Front & Rear Cameras/Escort 8500ci Plus/LUX v3 AE's/BMW "Edition" Front Grills, Side Gills & Exhaust Tips/Llumar CTX & Air Blue/Xpel Stealth PPF

10-05-2012, 07:20 PM	#4
1MOREMOD Major General Drives: at a moderate pace Join Date: Mar 2009 Location: garage Posts: 6,528 iTrader: (3)	sure lets hear it. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC race control arms\|GC bushings & bearings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster knob\|Euro header\|Eisenmann sport\|K&N c.a.i.\|Seibon CF hood\|CSL bumper\|CSL brakes\|RS19s\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|race pulleys\|BMWpedals\|Apex studs\|1995 Ford Probe gt chump car\|

10-06-2012, 07:55 AM	#5
raywong Private First Class Drives: E92M3 Join Date: Jun 2011 Location: Hong Kong Posts: 126 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.

10-08-2012, 02:10 PM	#7
1MOREMOD Major General Drives: at a moderate pace Join Date: Mar 2009 Location: garage Posts: 6,528 iTrader: (3)	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 race control arms\|GC bushings & bearings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster knob\|Euro header\|Eisenmann sport\|K&N c.a.i.\|Seibon CF hood\|CSL bumper\|CSL brakes\|RS19s\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|race pulleys\|BMWpedals\|Apex studs\|1995 Ford Probe gt chump car\|

10-03-2012, 01:08 PM	#2
Jon@Bimmersport Automotive First Lieutenant Drives: E46 M3 Active Supercharged Join Date: Jun 2008 Location: Mississauga, On Canada Posts: 340 iTrader: (0) Garage List 2003.5 BMW M3 [5.00]	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.

10-07-2012, 07:42 AM	#6
raywong Private First Class Drives: E92M3 Join Date: Jun 2011 Location: Hong Kong Posts: 126 iTrader: (0)	one more:

10-08-2012, 06:05 PM	#8
gatorfast Lieutenant Colonel Drives: MR E90 M3 Join Date: Jan 2008 Location: SoFla Posts: 1,812 iTrader: (3)	Those vids sound similar to mine with oem mod and secondary cat delete. Maybe a little louder and more raspy though.

10-08-2012, 08:29 PM	#9
cghempel Second Lieutenant Drives: M3 Join Date: Apr 2010 Location: Dallas Posts: 201 iTrader: (1)	I have heard this set up in person...sounds awesome but is LOUD!

10-09-2012, 01:20 AM	#10
raywong Private First Class Drives: E92M3 Join Date: Jun 2011 Location: Hong Kong Posts: 126 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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