Uppipe & Downpipe - Subaru WRX Forum
 
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post #1 of 8 Old 02-17-2006, 01:17 PM Thread Starter
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Uppipe & Downpipe

I have read all over the fourm about HKS, Helix, Cobb, and TurboXS, I was wondering if there is any difference? I seen no power results, so my question is why spend the extra $$ on a cobb up and down pipe when I can get both from HKS (not just the cobb down pipe)for the price (if not cheaper) from HKS
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post #2 of 8 Old 02-17-2006, 01:45 PM
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The only real difference would be weather the downpipe has the blocking plate for the wastegate or not. I believe the HKS does have that blocking plate, I would stay away from that. You want a good bellmouth or divorced wastegate downpipe to get the most performance. Helix is not expensive at all, if your trying to save money go that route.

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post #3 of 8 Old 02-17-2006, 01:57 PM Thread Starter
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Quote:
Originally Posted by bradley03
The only real difference would be weather the downpipe has the blocking plate for the wastegate or not. I believe the HKS does have that blocking plate, I would stay away from that. You want a good bellmouth or divorced wastegate downpipe to get the most performance. Helix is not expensive at all, if your trying to save money go that route.
yeah money isnt a object, im looking at it as a bragging right, WHICH i dont want, since this will be complete sleeper/What are you talking about, I didnt do any mods/its stock
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post #4 of 8 Old 02-17-2006, 02:33 PM
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I wish I could find a better picture of the HKS downpipe but here is an example. If you look close you can see the difference.

HKS
http://i6.photobucket.com/albums/y21...997/L_2618.jpg

Invidia
http://i6.photobucket.com/albums/y21...pipeflange.jpg

You can see how the Invidia has a bellmouth opening where as the HKS does not. The HKS version does not flow as well as the others that are available. You don't necessarily need the COBB but I wouldn't get the HKS either.

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post #5 of 8 Old 02-17-2006, 03:01 PM
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I agree, stay away from HKS because of the blocking plate.

You get what you pay for... but on that note:
Search ebay for "wrx downpipe". It will be your cheapest bet (but I've heard of fitment issues).
Helix will probably be your next best bet (endorsed and trusted by many).
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post #6 of 8 Old 02-17-2006, 09:18 PM
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I don't know, but looking around I've heard people say they had fitiment issues with the HKS
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post #7 of 8 Old 02-17-2006, 09:40 PM
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my HKS fits just fine, but it is lacking because of the WASTEGATE BEING BLOCKED. best option if money is not an option is to get the crucialracing.com downpipe and midpipe, IMO it is the best made, and has the best design for exhaust/wastegate release. check it out at www.crucialracing.com it is a very well made piece.

very little exhaust turbulence so you know the exhaust will not be fighting to leave.

Gregory-
keep it in the dirt.
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post #8 of 8 Old 02-18-2006, 11:18 PM Thread Starter
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that or I was looking at Prodrive up and down pipe...i just dont want to spend a ton of money on these when i can get both for $389 from Helix, if all pretty much are the same.
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