Adding HFC's..

MrHarris · 10-21-2009, 04:45 AM

If I'm adding high flow 300cell cats to a catless x-pipe w/ 2 resonators, would it create more drone or less drone? I'm running full Gintani catless exhaust right now.

KiokenM3 · 10-21-2009, 08:32 AM

should have less drone

Nawaaz · 10-21-2009, 08:34 AM

^ That's what I would think also.

Eugene-TAIWAN · 10-21-2009, 09:34 AM

less for sure i have played around with that also where the cats are placed also makes a difference

DevJ · 10-21-2009, 10:42 AM

Why are you changing out? Too loud? Just curious..

jdmish · 10-21-2009, 11:30 AM

I think i saw your ride yesterday on Grand ave., I wasnt in my M though. Car sounds sick!

J08M3 · 10-21-2009, 11:40 AM

Not sure it will change the drone, but it will lower the volume and give you a slightly less aggressive sound.

KiokenM3 · 10-21-2009, 01:23 PM

less drone and hp too

powertrip · 10-21-2009, 01:51 PM

Meh, the difference in HP will be negligible (less than 10).

Quote:

Originally Posted by KiokenM3

less drone and hp too

KiokenM3 · 10-21-2009, 03:46 PM

Quote:

Originally Posted by powertrip

Meh, the difference in HP will be negligible (less than 10).

true, but every little bit helps when your N/A

10-21-2009, 04:45 AM	#1
MrHarris yodog 197 Rep 5,025 Posts Drives: '86 Corolla Join Date: Jun 2007 Location: Diamond Bar, Ca iTrader: (5) Garage List 2009 BMW [10.00]	Adding HFC's.. If I'm adding high flow 300cell cats to a catless x-pipe w/ 2 resonators, would it create more drone or less drone? I'm running full Gintani catless exhaust right now. __________________ 2009 E92 M3 \| Alpine White \| Black Extended \| Advan RS \| Turner Test Pipes \| Dinan Axle-Back \| OETuning \| Eibach Springs \| UUC SSK \| VRS Front Lip \| VRS Type I Diffuser \| Matte Black \| RPi Scoops \| MS Filter \| Yokohama AD08 \| F1 Pinnacle Special Thanks: Gintani \| OETuning \| eAs
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10-21-2009, 08:32 AM	#2
KiokenM3 Lieutenant Colonel 84 Rep 1,504 Posts Drives: LIFTED JEEP JK! Join Date: Dec 2008 Location: LA iTrader: (4)	should have less drone
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10-21-2009, 08:34 AM	#3
Nawaaz Brigadier General 221 Rep 4,643 Posts Drives: . Join Date: Apr 2009 Location: . iTrader: (0)	^ That's what I would think also.
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10-21-2009, 09:34 AM	#4
Eugene-TAIWAN Brigadier General 249 Rep 3,157 Posts Drives: E92 M3 Coupe Join Date: Jun 2009 Location: Taiwan iTrader: (4)	less for sure i have played around with that also where the cats are placed also makes a difference __________________ Past: Gintani stage3 M3, Cayman GTS present: Porsche 993RWB, 964RS America,996 cupcar, 964 turbo 3.6,Macan Turbo,997GT2,930 turbo,i3, MINI JCW
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10-21-2009, 10:42 AM	#5
DevJ Colonel 154 Rep 2,736 Posts Drives: R8 V10+/YMB M4 Join Date: Nov 2007 Location: Tulsa, OK iTrader: (1)	Why are you changing out? Too loud? Just curious.. __________________ ‘23 RRS First Edition '22 X7 M50i '18 R8 V10+ http://www.bimmerpost.com/forums/attachment.php?attachmentid=133578&d=1204654487[/IMG]
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10-21-2009, 11:30 AM	#6
jdmish Second Lieutenant 4 Rep 203 Posts Drives: e92 Join Date: Sep 2008 Location: Southern California iTrader: (2)	I think i saw your ride yesterday on Grand ave., I wasnt in my M though. Car sounds sick! __________________
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10-21-2009, 11:40 AM	#7
J08M3 Major General 285 Rep 6,007 Posts Drives: 2011 M3 COUPE Join Date: May 2008 Location: NEW YORK iTrader: (8)	Not sure it will change the drone, but it will lower the volume and give you a slightly less aggressive sound. __________________
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10-21-2009, 01:23 PM	#8
KiokenM3 Lieutenant Colonel 84 Rep 1,504 Posts Drives: LIFTED JEEP JK! Join Date: Dec 2008 Location: LA iTrader: (4)	less drone and hp too
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