Bosal downpipe or Helix?
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Bosal downpipe or Helix?
I am in the market for a downpipe and need some advice. They bosal is a divorced mouth and the helix is a bellmouth. Which one is better for the money? I am planning on upgrading turbo further down the road also. Is the helix worth the extra 100 dollars?
Thanks!
Thanks!
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Joined: Apr 2003
Posts: 1,348
From: Trying to figure out something creative to put her
Car Info: 2005 CGM WRX Wagon
Those two downpipes are different alltogether. Not only do they have different mouths, but the Bosal only replaces the DP cat (it keeps the stock midpipe), where the Helix is longer and replaces both cats. It all depends on whether you want to keep the midpipe cat...
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Joined: Apr 2003
Posts: 1,348
From: Trying to figure out something creative to put her
Car Info: 2005 CGM WRX Wagon
That has been argued, but there is no conclusive evidence that one is better than the other. Some tuners like the bellmouth (Cobb), and some like the divorced (Vishnu). Take your pick...
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I went Bosal since divorced is theoretically better and used stock midpipe. Gutted the third cat and put in a Pony Express Performance MIL Eliminator. Only to 40 minutes to gut the cat with a 7 lbs handheld sledge and a crowbar. The underside view of the car is 100% sleeper. 
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Joined: Apr 2003
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From: Trying to figure out something creative to put her
Car Info: 2005 CGM WRX Wagon
Originally posted by DLUX WRX
I have the Helix and love it. If you want to go catless get the helix. if you want to keep the mid pipe go w/ the bosal.
I have the Helix and love it. If you want to go catless get the helix. if you want to keep the mid pipe go w/ the bosal.
