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What's an STi IV Downpipe look like

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Old 04 May 2002, 10:28 PM
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Scott.T
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Just looked at an STi IV, and the garage owner was ranting at how quick it was and claiming it was Quicker then a EVO 6 they had a while ago.

Couldn't spot anything obviouse i.e rear box looked standard STi, it had a K&N Cone and a nice set of Lamco gauges.

Tried to check out the downpipe, and was expecting it to be de-catted. It had no heatshield but what I initailly thought was the CAT didn't really look big enough. It looked more like a 'Cherry Bomb' type silencer.

Is this Standard STi or is it a de-catted downpipe with some sort of resonator ?????

The Scoobysport and Magnex ones I've seen are just bent bits of pipe.....

It was fairly quick, peaking at about 1.25BAR then dropping back to just over 1BAR. Not sure what an STi IV should pull, but it ort of sounds about right....
Old 06 May 2002, 07:04 AM
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dowser
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STi's run the same d/p's as euro cars OE. Sounds like a d/p with high flow 'sports' cat...but some people have a lump welded into the middle of their decat d/p so it *looks* like there's a cat, lol

Richard
Old 06 May 2002, 01:24 PM
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I think it must of been some sort of performance CAT, maybe from GGR.
It looked like a good pipe, and certainly wasn't a bodge, to look as if a CAT was fitted.
Old 05 June 2002, 10:40 AM
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alistair
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If there's no heat shield than it sounds like someone has changed the downpipe - but was lazy. Mine was cut away to keep as much heatshield as possible with the new downpipe.

There's a picture of the standard downpipe here - It's the one on the left

[Edited by alistair - 5/6/2002 10:46:59 AM]
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