Gutting the downpipe, anyone tried??

Headers, cats, uppipes, downpipes, midpipes and mufflers.

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snowjob
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Gutting the downpipe, anyone tried??

Post by snowjob »

has anyone gutted their cat :roll: has it improved things? I would emagine it would act like a catless downpipe, but I'd like to hear from someone who has done it before I destroy my Cat.

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BAC5.2
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Post by BAC5.2 »

With the cheapness of downpipes on e-bay, you can just get one pre-catless.
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snowjob
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Post by snowjob »

true, but it's alot cheaper to take the one you have on the car, gut it and slap it back on...I'm cheap....
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BAC5.2
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Post by BAC5.2 »

Ahh, well, you COULD do this I suppose. As long as you don't have to get emissions tested.

I dunno, the stock bit doesn't flow very well to begin with.
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2009 Impreza 2.5i Premium. Blue.

[quote="scottzg"]...I'm not a fan of the vagina...[/quote][quote="evolutionmovement"]This will all go much easier if people stop doubting me.[/quote]
91White-T
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Post by 91White-T »

How would you do it? The bends on it will make it almost impossible to get to it all.
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QuickDrive
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Post by QuickDrive »

Cut

Smash

Weld

?
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Post by mikec »

QuickDrive wrote:Cut

Smash

Weld

?
Agreed. Definitely the fastest way to do it.

Someone I know tried to gut his uppipe, and only managed to turn the catalyst into a big blob that was unbreakable. :roll:
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BAC5.2
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Post by BAC5.2 »

Cut, replace cat area with standard peice of pipe, weld.

That's even easier.
2009 Outback 2.5XT. 5MT. Satin White Pearl.
2009 Impreza 2.5i Premium. Blue.

[quote="scottzg"]...I'm not a fan of the vagina...[/quote][quote="evolutionmovement"]This will all go much easier if people stop doubting me.[/quote]
snowjob
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Post by snowjob »

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irishsetter
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Post by irishsetter »

How did this get gutted without cutting the cat?
snowjob
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Post by snowjob »

read the writeup under www.scoobymods.com
It's in the wrx section under gutting pipe.
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