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-   -   Did Cobb have different downpipes between generations? (http://www.mazdaspeedforum.org/forum/forum/f505/did-cobb-have-different-downpipes-between-generations-223345/)

Surge 01-26-2020 06:38 AM

Did Cobb have different downpipes between generations?
 
Sorry for the simple question, I searched around but couldn't find an exact answer. Was wondering if a Cobb DP previously installed on a gen2 will fit a gen1 or if they made different downpipes between generations. Seems they don't even have them available on the store anymore to reference.

shamie 01-26-2020 09:12 AM

Wow. I didn't realize COBB has dropped all hardware support of the MS3. I guess it was inevitable.

They only made 1 downpipe for both gens. It can even be used in a MS6 but there's a ton more disassembly to get a 1 piece DP in.

Cyberdutch 01-26-2020 12:19 PM

Thats why >>>>>. Corksport !!!

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tegxsi 01-27-2020 12:00 AM

no....you don't really want a CS divorced DP.
I think it's a silly design that may cause problems on some turbo upgrades. I rather have the larger bell housing.

Jeff23spl 01-27-2020 09:59 AM

Quote:

Originally Posted by tegxsi (Post 3173800)
no....you don't really want a CS divorced DP.
I think it's a silly design that may cause problems on some turbo upgrades. I rather have the larger bell housing.

can you tell more about those ''problems'' just in case... I got my 6 with the cobb installed and i re-used it with a gt3076...I read about WG being blocked by the internal so i made sure my atp hoosing flap wasn't hitting it and it wasn't a problem. But if you heard anything else wrong about it ? I read sometimes that divorced path help turbo efficiency but since it return into the same pipe, maybe it doesn't help much....

Some DP for the 3 aren't working on the 6 like my old turbo xs. Despite it was a 2 pieces, t-case is on the way....So i just concluded that 6 and 3 dp was different...

And yes the Cobb is a pita to install on a 6. When my k04 and manifold was out, i did try to take the DP out to find a new donut for it and it wasn't possible to pass it. Neither by the top or by the bottom on a lif without removing more parts around the T-case/drive Shaft or move the engine...

tegxsi 01-27-2020 11:05 PM

@Jeff23spl;
Nothing wrong with Cobb.
What I was trying to get at is the CS divorced DP could potentially be a problem with some turbo wastegate flappers. :)


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