Punch Out the Rear Cats??

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Old 10-16-2008, 03:48 PM
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Punch Out the Rear Cats??

Good or Bad idea...... Running a Magnaflow 18x5x8 muffler Dual exhaust now.
Would punching my cats do anything for me?? Sound Power etc...
 
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Old 10-16-2008, 08:33 PM
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Punch out as in removal? More sound, lightly improved economy & torque.

If your truck is a 2006 it does not have rear cats, it has the basic two big ones. Only option is hi-flow cats.
 
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Old 10-16-2008, 11:26 PM
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Originally Posted by DarrenWS6
Punch out as in removal? More sound, lightly improved economy & torque.

If your truck is a 2006 it does not have rear cats, it has the basic two big ones. Only option is hi-flow cats.
exactly

but if your talkin about removing the cats completly off your truck, i would advise against it, been there done that not my best decision
 
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Old 10-17-2008, 11:24 AM
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Gotcha....

Yeah I ment hollow them out.

I did this to my GMC Syclone but that's a 1991

Wasn't sure how it would effect the 2006
I didn't know I only had the 2 under there...

Maybe I'll just leave it be then...
 
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Old 10-17-2008, 11:30 AM
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Originally Posted by Mr. eXtreme
Gotcha....

Yeah I ment hollow them out.

I did this to my GMC Syclone but that's a 1991

Wasn't sure how it would effect the 2006
I didn't know I only had the 2 under there...

Maybe I'll just leave it be then...
1997 - 2005 have 4, 2005.5 - present have two. You can buy hi-flow cats at $65 - $80 each and replace your OEMs.
 
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Old 10-17-2008, 11:32 AM
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CooL... I'll look into High Flows!!

In your opinion are they worth the $ ?



AirAid modular intake tube, K&N filter, Magnaflow Exhaust, Line-X'd bed and fender wells, 2.5 Inch AS Level Kit and 3 inch AS Rear Block, 1 Mile range Viper 5900 SST remote start and alarm system, JL Audio Stealthbox, JL Audio 500/1, JL Audio 300/4, Alpine Type-R 6.5 inch components in front doors, Alpine Type-R 5x7's in rear doors, Alpine Iva-w505, LOTS of Dynamat, 15% Tinted windows, Billet Grills in factory H-bar and lower bumper.
 
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Old 10-17-2008, 11:49 AM
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Took out my rear two because there was no 02 sensors after them.
 
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Old 10-17-2008, 11:53 AM
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The value of your current cats offset the cost quite a bit. Some people get a lot of money for their old cats at the recycler. Some shops will work deals on labor costs to keep your old cats. So when all is said and done the cost is small. I think if you do it all yourself you could probably come out on top.
 
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Old 10-18-2008, 10:33 AM
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Originally Posted by Mr. eXtreme
CooL... I'll look into High Flows!!

In your opinion are they worth the $ ?



AirAid modular intake tube, K&N filter, Magnaflow Exhaust, Line-X'd bed and fender wells, 2.5 Inch AS Level Kit and 3 inch AS Rear Block, 1 Mile range Viper 5900 SST remote start and alarm system, JL Audio Stealthbox, JL Audio 500/1, JL Audio 300/4, Alpine Type-R 6.5 inch components in front doors, Alpine Type-R 5x7's in rear doors, Alpine Iva-w505, LOTS of Dynamat, 15% Tinted windows, Billet Grills in factory H-bar and lower bumper.

Very much worth it. Sound and flow increases, $65 - $80 for a legal cat converter, very agreeable.
 
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Old 10-18-2008, 07:57 PM
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Originally Posted by DarrenWS6
Very much worth it. Sound and flow increases, $65 - $80 for a legal cat converter, very agreeable.
x2 VERY worth it, gettin my 2 maggie 94106 hi flows was the best 130 bucks ive ever spent

well besides the 8,500 for the truck haha
 
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Old 10-18-2008, 08:25 PM
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where did u get your hi flow cats from
 
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Old 10-19-2008, 02:14 AM
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Originally Posted by banks
where did u get your hi flow cats from
ebay.com

part number 94106 (smallest maggie hi flow that will work on fords)

65.10 bucks a piece
 



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