Air and Fuel› Performance Packages
COBB
Cobb 08-14 Subaru STI Stg 1 to NexGen Stg 2+ Flex Fuel Power Package - Black
SKU: C005 SUB003NG2S1FF-S1-UP-BK
Moderate — 2–4 hours
Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | COBB |
| Part Number | C005 SUB003NG2S1FF-S1-UP-BK |
Videos
COBB Tuning - NexGen Flex Fuel for Subaru 2008-2021 STI
Cobb NexGen Flex Fuel Update
What are Subaru Stages?
COBB Tuning Flex Fuel - Subaru - Install/Review
Cobb Flex Fuel Install 2015+ WRX
COBB Tuning - 2015-2021 STI NexGen Packages and Maps
COBB Tuning - 2015-2021 WRX NexGen Packages and Maps
Cobb NexGen Stage 2+ is Awesome!!
Why You Should NOT Go Stage 2+ On Your 2015+ STI
2011 WRX Stock vs 2013 WRX Stage 2 Difference
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy