HFC

p-streets · 12-12-2012, 06:46 PM

Put this post in the exhaust section and got no rply. So looking for some info thinking of putting some HFC cats on my race pipes can it be done I'm sure it can also what brand is best

signes · 12-12-2012, 07:26 PM

all the information you are looking for is available with a search in the exhaust forum it have been discussed a lot yes its possible no "best" one just do some research and oh by the way you might want to consider using punctuation it is really f-ing annoying to try and read without it

Jbook · 12-12-2012, 07:57 PM

I don't think there will be any brand that will be a direct bolt on. I originally purchased the Active Autowerke catless x-pipe and later added their HFC option. Adding what brand of "race pipes" you have would be helpful unless they're custom.

M3PO · 12-13-2012, 03:37 PM

I wouldn't buy Fabspeed (I have them). The cats are the best quality but the quality of the welds (lack of penetration) and the fitment are sub par.

Munit · 12-18-2012, 09:08 PM

By far the best xpipe with HFC for fitment and quality is AA

BPMSport · 12-18-2012, 10:07 PM

Quote:

Originally Posted by Munit

By far the best xpipe with HFC for fitment and quality is AA

I would have to disagree and say that the Akra system is the best quality and fitment. But this is obviously a completely different price bracket. (And it has an H pipe).

I would also second what M3PO said about not getting the Fabspeed system.

m3an · 12-18-2012, 10:11 PM

OP already has an x pipe per his post and is looking for universal cats to weld in; OP just go on ebay and buy some small cats and have a shop weld em in

aus · 12-19-2012, 08:58 AM

Any muffler shop can do it. HJC have been mentioned as good cats to ask for. Put some 200 cpi cats in the secondary position for more power. You'll need 300cpi in the primary position for no check engine lights... but then, what's the point.

12-12-2012, 06:46 PM	#1
p-streets M3NTAL 19 Rep 300 Posts Drives: 09 E92 M3 Join Date: Jun 2009 Location: LAND OF THE LOST TEXAS iTrader: (1)	HFC Put this post in the exhaust section and got no rply. So looking for some info thinking of putting some HFC cats on my race pipes can it be done I'm sure it can also what brand is best
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12-12-2012, 07:26 PM	#2
signes Brigadier General 199 Rep 4,318 Posts Drives: 991 GT3 RS Join Date: Sep 2008 Location: Living at (almost...) 9k iTrader: (5)	all the information you are looking for is available with a search in the exhaust forum it have been discussed a lot yes its possible no "best" one just do some research and oh by the way you might want to consider using punctuation it is really f-ing annoying to try and read without it __________________ GT3 RS \| Desperately seeking the next great M car...
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12-12-2012, 07:57 PM	#3
Jbook Lieutenant Colonel 163 Rep 1,506 Posts Drives: '15 FO M4 Join Date: Sep 2010 Location: NorCal Bay Area iTrader: (23) Garage List 2011 BMW E90 M3 [9.44]	I don't think there will be any brand that will be a direct bolt on. I originally purchased the Active Autowerke catless x-pipe and later added their HFC option. Adding what brand of "race pipes" you have would be helpful unless they're custom.
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12-13-2012, 03:37 PM	#4
M3PO Colonel 84 Rep 2,792 Posts Drives: '08 IB E92 Join Date: Sep 2011 Location: OC iTrader: (7)	I wouldn't buy Fabspeed (I have them). The cats are the best quality but the quality of the welds (lack of penetration) and the fitment are sub par. __________________ 2008 IB E92 M3\| BBS \| KW \| Arkym \| Platte Forme A.G. \| Active Autowerke \| K&N \| Fabspeed \| Dinan \| Evolve-R
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12-18-2012, 09:08 PM	#5
Munit Banned 33 Rep 220 Posts Drives: m3 Join Date: Oct 2012 Location: CA iTrader: (0)	By far the best xpipe with HFC for fitment and quality is AA
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12-18-2012, 10:11 PM	#7
m3an Banned 39 Rep 1,590 Posts Drives: M3 Join Date: Oct 2010 Location: South Florida iTrader: (2)	OP already has an x pipe per his post and is looking for universal cats to weld in; OP just go on ebay and buy some small cats and have a shop weld em in
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12-19-2012, 08:58 AM	#8
aus Major General 892 Rep 9,032 Posts Drives: Odysse Join Date: Jul 2005 Location: Seal Beach, CA iTrader: (10)	Any muffler shop can do it. HJC have been mentioned as good cats to ask for. Put some 200 cpi cats in the secondary position for more power. You'll need 300cpi in the primary position for no check engine lights... but then, what's the point. __________________ Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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