Direct fit cats - Pontiac G8 Forum: G8 Forums -

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post #1 of 4 (permalink) Old 06-29-2009, 02:49 PM Thread Starter
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Direct fit cats

Any pics and info on your direct fit cats? They are listed on as part number 16429.


2009.5 Stryker Blue G8 GT
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post #2 of 4 (permalink) Old 06-29-2009, 05:44 PM
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Impressed with the workmanship; mandrel bent nice welds etc, not with the innards. They only lasted about 2.5 months on my Firebird before one started rattling like hell.

Don't bother.

'08 G8 GT Magnetic Gray Metallic, Sport and Premium Packages, Onyx interior, no sunroof
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post #3 of 4 (permalink) Old 04-20-2018, 12:09 PM
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i impressed/.....
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post #4 of 4 (permalink) Old 04-20-2018, 08:27 PM
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Solo HFCs are direct fit cats with much better flow. See the attached pictures. Had mine on since April 2010 with no problems.
Attached Images
File Type: jpg Solo HFC 1.jpg (115.7 KB, 9 views)
File Type: jpg Solo HFC 2.jpg (128.7 KB, 9 views)
File Type: jpg Solo HFC 4.jpg (120.1 KB, 10 views)

2009 G8 GXP #808 of 1829, #30 of 61 in this configuration: SRM, 6MT, Roof

Rotofab CAI, Solo HFC, Borla Catback, Livernois ECM tune, Holley Coil Covers, Heater Hose Relocation, rear Brembos.
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