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Old 01-18-2005, 01:26 AM   #1
Scooby Newbie
Member#: 61197
Join Date: May 2004
Location: Anaheim, CA
2004 WRX
vf39 + goodies...

Default 2nd thoughts about installing my turbo inlet hose...

mods on my '04 WRX:
BPM tt-series TBE
STi uppipe
K&N panel filter
Cobb's AP stage 2 (hwy map)

i got a good deal on a Samco turbo inlet hose. cobb's website says you need to use the stock intake with stage 2 maps, but nothing about the inlet hose. if the uppipe is within the parameters of the mapping, would it be safe to assume the same for the inlet hose?

i've searched and searched, and found a lot of different opinions that the car would run anywhere from "within parameters", to substantially leaner with the aftermarket hose.

would it be safe to install with cobb's AP? should i just hold off for a while until i can get a dyno-tune? sheesh, maybe i'll just save for an STi l
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Old 01-18-2005, 01:28 AM   #2
Diabolical1 CC
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Member#: 59897
Join Date: Apr 2004

See the turbo thread.
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Old 01-18-2005, 08:35 AM   #3
Scooby Guru
Member#: 47769
Join Date: Nov 2003
Chapter/Region: MWSOC

Why not call Cobb?? They would be able to give you the definitive answer. That's their job.
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Old 01-18-2005, 09:39 AM   #4
Scooby Newbie
Member#: 68691
Join Date: Aug 2004
Location: Sacramento, CA
2004 S2000


I'm running a perrin turbo inlet, with a apexi short ram, and a cobb stage 2 map, If anything its still slightly running rich.

fyi: its a PITA to install the hose.
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Old 01-18-2005, 05:41 PM   #5
Scooby Newbie
Member#: 19568
Join Date: Jun 2002
Location: NJ
1995 Impreza L
Brilliant Red


the inlet isnt going to make a huge difference. It will help spool, but its not going to alter any characteristic enough to warrent worrying. The samco just has a smoother inside then the stock peice. Put it on and go have fun.
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Old 01-18-2005, 07:43 PM   #6
Scooby Specialist
Member#: 69032
Join Date: Aug 2004
Location: Maine
2005 Legacy GT
Obsidian Black


Originally Posted by tpc01x
fyi: its a PITA to install the hose.

You got that right.
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