Do both nipples on the synapse need to be connected?

Jasnall

Member
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Mazdaspeed 3 GT, True Red, 2008.5
Just had it installed, they didnt connect a hose to both top nipples just one, do i need both? is one bad?

here's is what it looks like! I dont think its right heeeeeeeeeeeeeeeeeeeeeeeelp.
MyCar094.jpg

MyCar095.jpg

Btw, you cant really hear it with stock air bock, I kinda expected that. BUt damn it pulls hard(five-0)
 
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HELLLLLLLLLLLLLLLPMEEEEEEEEEEEEEEEEEE they didnt even give me the box with the instructions or anything(nervous)
is it driveable! it doesnt really make much noise.
 
you have to t off the vac line and connect it on both nipple on top of bov. the other nipple on the side can be removed. Did you had to cut of the return line?
I'm still working on getting mine installed but i had fittement issue with the cpe CAI. If nothing goes wrong i should have it installed by friday.
 
Nah, it ended up being free. I tee'd off the vac lines fine, And yes they had to cut the recirc hose about an inch.

my other issue was the boost only line, I read a bunch o stuff saying tee into the line that goes in the waste gate actuator, so I did , i hope its right.
Ill take some pics
Hows this look?
MyCar096.jpg

THe top hose is going to the third nipple(C) on the bov
MyCar097.jpg
 
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I'm not sure about the port c... i dont think it need to be connected. Someone can confirm this?
 
easy on the nipples fellas!(hah)
SO thats how I fixed er up. I went for a spin last night and the driving changed a little.
It felt like the boost was a little slow to react...if i were to sit around 4k rpms and punch it, it seemed to hesitate for a second then blast off.
When I first drove it with only one port plugged in (A) the response was awesome. Better than stock, picked up boost really fast. So i dunno whats going on. Do my hose connections look ok? it seemed like the Tee connected in the boost only line may have been a little small, like a little bigger than a ballpoint pen head, will that restrict anything? Blah im just rambling, I want it to work right :(

Oh and I hardly here it, dunno if its set up wrong, or just that im on stock airbox.
 
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