which downpipe?
Registered User
Joined: Feb 2004
Posts: 104
From: NORcal (Bay area)
Car Info: 2004 GD WRX
really depends on what kind of preference you have....whether you want a nice throaty and deep exhaust note with a catless dp along with great performance....or going somewhat legal with a cat equipped downpipe...personally...i would go wit a catless dp...mind as well........perferably a DP w/ 4in bellmouth that tapers down to a 3 inch....like HELIX....(which is the one i got)
Registered User
Joined: Feb 2004
Posts: 104
From: NORcal (Bay area)
Car Info: 2004 GD WRX
Originally Posted by boardertj
ya im gonna go catless so ud recomend helix? how much u pay for urs?
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Posts: n/a
BPM all the way. There downpipe is the best looking one I've seen. Divorced wastegate with blocker plate that dumps at least 12" down stream of the turbo as to not cause turbulence in the exhaust. www.bpmsports.com
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Downpipe
Bellmouth downpipes seems to be the rage for WRX's comapare to Split mouths or round mouth downpipes.
I have the Invidia bellmouth now but if I had another chance I would've picked up a set of Helix bellmouth downpipes together with their Flex up-pipes and exhaust manifolds.
Main difference for Invidia & Helix is the price other than that both are quality companies.
MArky
I have the Invidia bellmouth now but if I had another chance I would've picked up a set of Helix bellmouth downpipes together with their Flex up-pipes and exhaust manifolds.
Main difference for Invidia & Helix is the price other than that both are quality companies.
MArky
Angry Dan
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Registered User
Joined: Feb 2004
Posts: 720
From: The Hunted Forest
Car Info: Mazda Protege '02 (Wishing protege has AWD and a H6 twin turbo)
Originally Posted by boardertj
wait so the helix doesnt bolt up to the stock cat back? do you have to have a helix catback or what?
Stock is 2.5" if you do not wish to have a non stock catback then use a 2.5" downpipe like pde or something
Registered User
Joined: Feb 2004
Posts: 720
From: The Hunted Forest
Car Info: Mazda Protege '02 (Wishing protege has AWD and a H6 twin turbo)
Originally Posted by boardertj
the pde downpipe is 3 inch and it says that it can mount up to stock catback. how is that?
Registered User
Joined: Feb 2004
Posts: 720
From: The Hunted Forest
Car Info: Mazda Protege '02 (Wishing protege has AWD and a H6 twin turbo)
Originally Posted by boardertj
can you buy an adapter like that for the helix