Fabrication Everything From JBwelded/Fluxcored downpipes to Equal length SS Manifolds.

changed out my cat with a high flow

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Old 12-24-2007, 04:51 AM
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Default Re: changed out my cat with a high flow

my friend did that......CA didnt like it one bit.....
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Old 12-24-2007, 02:19 PM
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Default Re: changed out my cat with a high flow

i used to punch the straight pipe through the cat and weld on the flanges. This way if one of the Jersey side-of-the-road inspection stations decided to pull you in, it still looks like you have a cat under there and you avoid an expensive fine.
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Old 12-24-2007, 10:07 PM
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Default Re: changed out my cat with a high flow

NA catless 4 cyl sounds terrible.
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Old 12-24-2007, 10:34 PM
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Default Re: changed out my cat with a high flow

Originally Posted by scottsi
NA catless 4 cyl sounds terrible.
+1
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Old 12-24-2007, 11:25 PM
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Default Re: changed out my cat with a high flow

should have added a cherry bomb.
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Old 12-28-2007, 12:15 AM
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Default Re: changed out my cat with a high flow

just take your original car off and cut a hole in the top, remove insides, weld top back on. home made resonator.
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Old 01-28-2008, 07:55 PM
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Default Re: changed out my cat with a high flow

here is what it sounds like inside and i'm not pushing it w.o.t.

http://s29.photobucket.com/albums/c2...8-VID00002.flv
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Old 01-28-2008, 08:00 PM
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Default Re: changed out my cat with a high flow

Fail. And g35/350z's sound like ----. They are toneless drones. Crack the throttle and they go "murrrrrr" weaksauce.
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Old 01-28-2008, 09:04 PM
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Default Re: changed out my cat with a high flow

I'm up for just the hatching out the honeycombs. That way you still have the "look" of a cat. If not take off the heat shields and tack weld the two pieces over the pipe.
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Old 01-28-2008, 09:15 PM
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Default Re: changed out my cat with a high flow

so rocks and road debris can rattle around in there? ---- that.
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