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Registered
Join Date: Jun 1999
Posts: 7,179
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Aftermarket CAT heat shield
Anyone use one of the aftermarket (DEC) cats on a 911. I'm planning to replace mine and it looks like the DEC does not have brackets like on the original for the heat shield. I can fab something if need be, but just wondering what others have done. Or just leave the shield on the shelf?
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1957 Speedster, 1965 356SC, 1965 356SC Outlaw, 1972 911T, 1998 993 C2S, 2018 Targa 4 GTS, 2014 Cayenne S, 2016 Boxster Spyder, 2019 Tacoma |
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08-01-2007, 04:33 PM
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Wildman Emeritus
Join Date: Feb 2003
Location: Chitown Burbs
Posts: 1,875
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I fabbed a bracket for the shield when I deleted my cat. I got an aluminum yardstick and formed, drilled and anodized it. Used a piece of thin cardboard to model the bracket from the cat cover to a valve cover bolt and then used it as my template for the length, bends and holes.
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Mike Andrew 1980 SCWDP 2024 Suby Forester 2018 BMW X1- Wife's 2000 Boxter - Sold |
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08-02-2007, 04:45 AM
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Join Date: Apr 2002
Posts: 30,507
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Quote:
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08-02-2007, 05:07 AM
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Yep, I tossed my heat shield along with the cat.
-Troy
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1986 911 Coupe (Guards Red), Fabspeed Euro Pre-muffler, Steve Wong Performance Chip 2001 Boxster 2.7L (Orient Red), bone stock |
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08-02-2007, 05:47 AM
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Alter Ego Racing
Join Date: May 2002
Location: Florida
Posts: 5,553
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I got cats made for Miatas and usd on each side, they have built in shields.
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International GT Champion; Porsche GT3 Cup Trophy Champion; Klub Sport Challenge Champion; Rolex Vintage Endurance Series Champion; PCA Club Racing Champion; National Vintage Racing Champion |
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08-02-2007, 06:06 AM
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Registered
Join Date: Jun 1999
Posts: 7,179
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Quote:
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1957 Speedster, 1965 356SC, 1965 356SC Outlaw, 1972 911T, 1998 993 C2S, 2018 Targa 4 GTS, 2014 Cayenne S, 2016 Boxster Spyder, 2019 Tacoma |
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08-02-2007, 08:31 AM
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Join Date: Oct 2004
Posts: 15,612
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I think the smaller aftermarket cat doesn't need an additional heat shield. There is one already on the engine (right) side. See that clamshell? That's the heat shield. You have to save your heat shield for the O2 sensor, and install it on the new O2 sensor.
There is no need either for the large skid plate that comes with the factory cat. The aftermarket one is much smaller and less prone to hitting driveways and uneven pavement. |
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08-02-2007, 09:57 AM
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Join Date: Jun 1999
Posts: 7,179
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Thanks!!
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1957 Speedster, 1965 356SC, 1965 356SC Outlaw, 1972 911T, 1998 993 C2S, 2018 Targa 4 GTS, 2014 Cayenne S, 2016 Boxster Spyder, 2019 Tacoma |
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08-03-2007, 05:34 AM
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The 911
The Box
