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Old 02-04-2017, 11:01 PM   #1
jhill523
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Member#: 427956
Join Date: Aug 2015
Default 20G upgrade on 2015 STI

Hello, besides the purchase of the Cobb 20g turbo what's needed? I know the AP also. What fuel upgrades are required? What exhaust mods are required?
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Old 02-05-2017, 08:46 AM   #2
alakazoo22
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Member#: 230730
Join Date: Nov 2009
Chapter/Region: E. Canada
Location: Sherbrooke
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05 FXT 18GXTR
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Originally Posted by jhill523 View Post
Hello, besides the purchase of the Cobb 20g turbo what's needed? I know the AP also. What fuel upgrades are required? What exhaust mods are required?
Ho boy! Search... and read FAQ
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Old 02-05-2017, 09:48 AM   #3
BMXspears
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Location: Portland, OR
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2002 EJ257 6spd WRX
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Originally Posted by jhill523 View Post
Hello, besides the purchase of the Cobb 20g turbo what's needed? I know the AP also. What fuel upgrades are required? What exhaust mods are required?


Injectors and pump. You don't need to change exhaust but it would be dumb not to at least change downpipe.
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