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HELP PLEASE, WHICH DECAT DOWNPIPE ???

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Old 11 November 2010, 07:01 PM
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esi
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Default HELP PLEASE, WHICH DECAT DOWNPIPE ???

hi, i need a decat downpipe for my wrx 1997 import,

there are 2 types on ebay from the same seller for the classic shapes

but which one will fit into my car ???? i am confused

here are the items on ebay :

http://cgi.ebay.co.uk/SUBARU-IMPREZA...item27abb6ca5f

and here is 2nd one :

http://cgi.ebay.co.uk/SUBARU-IMPREZA...item27b2a8ce3f
Old 11 November 2010, 07:09 PM
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f4la k
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The 1st one is the open neck one and the second is just a decat one. Look at the size of the hole at the end which goes to the turbo. The one you want is the 1st one, but remember you will need to have the car mapped for this and you say youve got a 97 wrx, does it have an aftermarket ecu, if not you will need to get a simtek (£1100) or a 2nd hand apexi for roughly £500 to run safely..
Old 11 November 2010, 07:22 PM
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esi
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ye i have noticed the necks, the first one has open neck,

so whats the difference?how come they fit into the same models??
does my turbo take an open neck decat downpipe???
Old 11 November 2010, 08:04 PM
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f4la k
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The diffrence is the first one flows better, the 2nd one is the same fitting except has half the hole blanked off like the standard one. Will fit your turbo no problem, fits any standard fit turbo. If your buying one its the openneck one you want, but i never buy anything off ebay mate. You would be better purchasing one from a reputable tuning company. You usually find the ones off ebay are crap quality and fit.
Old 11 November 2010, 08:13 PM
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dbay
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i would personaly say the 2nd one is a direct fit, sure enuff the first one is better flow, im pretty sure the 97 has lambda sensor just after the turbo

could be wrong but it worth checking yours first.

if you have a few spanners and what not you could just weld a flange on and tap the first one to make it fit
Old 11 November 2010, 08:36 PM
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s70rjw
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I'd go for a used one from a reputable manufacturer as opposed to one of unknown origin from Ebay. Take a look in the for sale section and buy a quality item.
Old 11 November 2010, 10:30 PM
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dj219957
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i bought one of ebay from 2fast2cool with an open neck like the first one and its brill. good fit, great sound, no overboost.
Old 12 November 2010, 12:00 AM
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morandpeter
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the first one reduces to 2.5inch, whats the point??!??!?

I had the same dilema when i was choosing mine. ended up going to cobrasports (exhaustsuk) 3 inch all the way, open neck, next day delivery and a perfect fit. Took all of 30 mins to fit.
Old 12 November 2010, 04:44 PM
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esi
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ok, i have just contacted the ebay seller regarding the difference in the necks, he said that The first one is bellmouth and the second one is a non bellmouth downpipe, so i need to get that checked before purchase

any idea if mine is a bellmouth type? as said i got a 1997-98 wrx import,

thanks
sam
Old 12 November 2010, 07:47 PM
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esi
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anyone?
Old 12 November 2010, 08:54 PM
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I think if you have still cated downpipe you have now non-bellmouth downpipe.

Last edited by jura11; 12 November 2010 at 08:57 PM.
Old 12 November 2010, 09:24 PM
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dj219957
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either will fit your car. its just a matter of choice. might as well go for the open neck, its supposed to flow better.
Old 15 November 2010, 11:25 AM
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the 1st one mate will defo flow better with the open neck!
Old 15 November 2010, 08:44 PM
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dbay
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they both will fit but im sure there is an issue with the post turbo lambda sensor, one pipe has the whole and the other dont
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