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13-04-2011, 05:12 PM
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Regular Member
Join Date: Jul 2009
Posts: 83
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i have a s1 xr8 with 2 and a half inch exhaust with hollowed out cats, will this be affecting performance, fuel econ, idle, etc. seeing if its worth buying some new ones...
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13-04-2011, 05:46 PM
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pursuit ute baby
Join Date: Jun 2010
Posts: 864
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it wont effect performance, fuel econ / idle etc would be very minimal.
it is however, highly illegal, and carries a 10,000$ fine. So to answer your question, YES, its cheaper to spend a few hundred than cop that fine, and therefor worth the purchase.
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my ride : AU xr8 pursuit ute 
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13-04-2011, 05:49 PM
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#3 | ||
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FF.Com.Au Hardcore
Join Date: Sep 2009
Location: Brisbane, Qld
Posts: 683
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It will have an effect on noise and the smell that comes out of the pipes.
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13-04-2011, 10:13 PM
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#4 | |||
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not here much anymore
Join Date: Dec 2004
Location: Sthn NSW
Posts: 22,918
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Quote:
__________________
2024 F150 XLT
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13-04-2011, 11:50 PM
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#5 | ||
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FF.Com.Au Hardcore
Join Date: Aug 2006
Location: Salamander Bay
Posts: 5,427
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It will affect your wallet when you get caught, may be having an impact on your car too as everything is designed and tuned around having them fitted
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[SIGPIC][/SIGPIC]
Everyone starts off with a bag full of luck and an empty bag of experience. The trick is to fill the experience bag before the luck bag is empty. "It is better to remain silent and be thought a fool than to speak out and remove all doubt." Start a new career as a bus driver Rides: FG2 XR6 stock at this stage but a very nice ride xc 4 DOOR X CHASER 5.8 UNDER RESTO |
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14-04-2011, 09:58 AM
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#6 | ||
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Resident AFF detailer
Join Date: Dec 2008
Location: Melbourne, VIC
Posts: 3,730
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Don't risk the fine if you get caught. Buy some new ones.
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No longer an 'active' detailer. |
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16-04-2011, 09:44 PM
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#7 | ||
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V8 AU Fairlane
Join Date: Aug 2008
Location: Nambucca Heads
Posts: 153
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What does the exhaust fumes smell like when the cats have broken? Rotten egg gas by any chance?
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17-04-2011, 12:32 AM
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#8 | ||
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rexnet
Join Date: Feb 2010
Location: Adelaide, South Australia
Posts: 3,562
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They smell like the exhaust but stronger
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17-04-2011, 08:37 AM
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#9 | |||
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not here much anymore
Join Date: Dec 2004
Location: Sthn NSW
Posts: 22,918
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Quote:
__________________
2024 F150 XLT
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17-04-2011, 10:47 AM
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#10 | |||
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FF.Com.Au Hardcore
Join Date: Feb 2008
Location: Geelong, Victoria
Posts: 4,471
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Quote:
http://www.swri.edu/10light/catalyst.htm |
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17-04-2011, 08:24 PM
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#11 | ||
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pursuit ute baby
Join Date: Jun 2010
Posts: 864
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easiest way is youll start to notice a carbon build up on your rear bar.. thats what happened with my last car.
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my ride : AU xr8 pursuit ute
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18-04-2011, 07:53 PM
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#12 | ||
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Smile
Join Date: Dec 2004
Location: Merrylands Sydney
Posts: 8,541
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Hollowed cats are illegal because of regualtions on pollution.Now with that out of the way..your car can gain decent power without them if tuned for offroad use cars. In saying that the ego sensors will have a harder time reading air fuel ratios at idle mostly because it will think the engine is leaner and will likely make the ecu run richer untuned.
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cat converter
Linear Mode
