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Old Dec 27, 2007 | 02:28 PM
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Default aps down pipe.

ok doing the aps twin kt in my f-body this winter. lokking for 8000 to 900 horse with a built 370. what size down pipe do i need? i don't know how to figure that. and second i would like the down pipe to support 1000 horse, just in case.
thanks for the info

Big Bird
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Old Dec 27, 2007 | 02:37 PM
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Um the aps twins come with downpipes..you need to buy a ypipe ,hooker is supposed to work or make your own dual exhaust. I am just going with hooker yipe I think and my b and b catback with electric cutout for now and see how that works out.
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Old Dec 27, 2007 | 02:44 PM
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sorry i know that the 3 inch probly aint big enough. that is what i meant. after the aps down pipe. what size do i need so i don't choke my car
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Old Dec 27, 2007 | 04:30 PM
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8000 is a biiiiig number
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Old Dec 27, 2007 | 04:40 PM
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With the 3" down pipes I would use 3" custom duals. That's what I'm doing.
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Old Dec 27, 2007 | 06:46 PM
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3" DPs will be fine, if your really worried, dont run a y setup and stick to 3" duals....
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Old Dec 28, 2007 | 07:24 AM
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Originally Posted by Superman09
3" DPs will be fine, if your really worried, dont run a y setup and stick to 3" duals....
+1...goodluck with the build.
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Old Dec 28, 2007 | 07:27 AM
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Make sure you post pics for the working build please!
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Old Dec 28, 2007 | 09:44 AM
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The twin 3in downpipes can allready support more power than those turbos are capable of so you would see no gain in changing them.
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Old Dec 28, 2007 | 03:32 PM
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thank you every one and will post pics when i get everything in. thanks
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Old Dec 28, 2007 | 03:44 PM
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and where do i get oval tubing something like 2 x 4. so i don't lose so much ground clearence. i hate iowa
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Old Dec 28, 2007 | 04:13 PM
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Dual cutouts.
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