helix vs bosal dp HELP!!!! - Subaru WRX Forum
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post #1 of 17 Old 10-30-2005, 11:59 PM Thread Starter
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helix vs bosal dp HELP!!!!

I'm not sure which to get. Helix catted or bosal. The helix has a highflow and is 3in all the way which makes me think that it is better, but it is a lot louder (i think). On the other hand, the bosal is a lot cheaper and is not as loud, but it uses the 3rd cat which makes the exhaust change to stock diameter which i think it makes it less powerfull than the helix. So gimme ## advice/choice. I guess what I really wanna know is: Is the difference (if any) between them noticeable (assuming the helix gives more)?

Thanks

"Many people have a good aim in life; most never pull the trigger."
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post #2 of 17 Old 10-31-2005, 07:45 AM
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i have the invidia catless. buy the helix. nicer design and will sound nicer as well. my friend has the bosal and it doesn't pull as hard as mine nor does does it sound as nice.
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post #3 of 17 Old 10-31-2005, 08:42 AM
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If you plan on getting a 3"catback get the Helix. If you are going to keep everything stock from the downpipe back then you will be able to get away with the Bosal.
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post #4 of 17 Old 10-31-2005, 11:57 AM Thread Starter
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I'm really more concered with the power differences. Also, will the sound be sorta "can-like", taking in consideration that I will be using the stock muffler (eg. stock resonator) for a much larger exhaust flow??

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post #5 of 17 Old 10-31-2005, 12:35 PM
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IMO the COBB catted down pipe is the best catted down pipe money can buy. its a full 3" with a true high flow cat, and the cat is mounted further down stream of the turbo than the Helix. it is a little pricy, but it is the one that im going to buy.
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post #6 of 17 Old 10-31-2005, 03:48 PM
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If power is your biggest concern, the bigger the better. More flow = more hp, who cares who makes it no one is gonna see it any way. Unless you have strict emission laws there is no reason for a cat, and with out the cat a pipe is a pipe no matter whos name is on it.
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post #7 of 17 Old 10-31-2005, 04:58 PM
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Quote:
Originally Posted by latinWRX
I'm really more concered with the power differences. Also, will the sound be sorta "can-like", taking in consideration that I will be using the stock muffler (eg. stock resonator) for a much larger exhaust flow??

hey man, get the helix dp, I have a catted helix dp, helix up, and a stp cat back, and my exhaust note is nice and low and rumbly!!!!

It is a sound that people notice!!

You will not sound like those coffee can hondas!!!!
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post #8 of 17 Old 11-01-2005, 06:49 AM
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you should also consider going catless as well cause if you do some research you'll realize that most of those with the high flow cats are not passing inspection either. why have a cat then?
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post #9 of 17 Old 11-02-2005, 11:33 AM
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get the UP/DP helix combo from gruppe-s spend the extra money its worth it and its a great deal.

I have an invidia and i love it. But never heard anything bad about helix
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post #10 of 17 Old 11-02-2005, 02:16 PM Thread Starter
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Quote:
Originally Posted by gingertooth
you should also consider going catless as well cause if you do some research you'll realize that most of those with the high flow cats are not passing inspection either. why have a cat then?

Environmentally conscious/friendly And I have that visual inspection part... dont care if it's a bit harder to see than the rest plus I won't get that black smoke like some subies I've seen around here.

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post #11 of 17 Old 11-02-2005, 04:50 PM
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+ 1 for the helix
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post #12 of 17 Old 11-04-2005, 11:39 AM
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heres what a full helix system sounds like :eek:

http://www.subydude.com/video/video_dump/HELIX.wmv


This i found on www.subydude.com.

sweet sweet sound.
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post #13 of 17 Old 11-04-2005, 12:39 PM
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get the helix...
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post #14 of 17 Old 11-05-2005, 03:15 AM
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get the helix or invidia..both very well made and high quality
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post #15 of 17 Old 11-05-2005, 05:48 AM
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i'd forget the cats all together. I mananaged to pass emissions catless

Big Jae -
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