This is our downpipe for the 2008+ (GR) Chassis Subaru WRX and STi. With our unique divorced design you will come on boost sooner, hold boost for longer, and have a rock solid boost curve. Our downpipe incorporates a few proprietary design features that make this the best performing downpipe on the market. This downpipe will also bolt up with the new 2015 (VA) Chassis STI.
Installation is a breeze, all of the bolts can be accessed from the top of the engine eliminating the up and down dance that is usually the norm with a downpipe install.
Possibly the best feature, is that the divorced island that we use is sized properly. This means no trimming, no cutting, no hours and hours of test fitting.
This bundle REQUIRES a tune for proper vehicle operation. If you don't already have a COBB Accessport, select the Accessport option above for a killer deal.
This product DOES NOT fit right-hand drive vehicles.
Includes a high-flow catalytic converter.
Simple Installation: Everything is included for the simple installation! Intuitive on-screen instructions identify your exact vehicle and available maps.
Simple Uninstall: Revert your ECU to exactly as it was before with the easy to use Uninstall option from the main menu.
Trouble Codes: Read engine trouble codes to diagnose issues. Clear them when resolved. Prevent expensive trips to the dealership.
Change Maps: Store up to 100 maps from our OTS map database or from your favorite COBB tuner and quickly switch between them for any need.
Gauges – Use your Accessport as a gauge to monitor boost or any other live information, directly from the ECU.
Data Logging: Record multiple data channels simultaneously for in-depth evaluation of engine performance. Stores up to 10 hours.
Performance Measuring: Welcome to your own performance evaluation suite! Measure 0-60 mph time, 60 foot and ¼ mile ET’s. and Trap Speed.
Shift Light: Set custom RPM warning lights for perfect shifts every time.
AP Manager: Use your PC or Mac to manage maps, download recorded datalogs, or quickly update your Accessport.
Realtime Tuning: Changes can be made to the map in realtime, while the engine is running. Greatly speeds up the tuning process and allows quick changes to powerful features like Lauch Control, Flat Foot Shift, and map switching.
Launch Control: Set RPM threshold for performance launching the car from a stop. Builds boost and generates instantaneous horsepower off the line.
Flat Foot Shifting: Keep the throttle on the floor during shifts and maintain boost between gears with this customizable RPM setting.
COBB Accessport Application Guide
2009-2010 Impreza 2.5GT
2007-2012 Legacy GT
2007-2009 Legacy Spec B
2007-2009 Outback XT
2007-2013 Forester XT
2014+ Forester XT
Typical Performance Gains
Stage 1: +12% HP and +19% TQ Hardware Requirements: Stage1 - Otherwise stock vehicle with the following modifications*: - Intake Requirements: Stock airbox with stock air filter - Exhaust requirements: Stock exhaust or upgraded cat-back exhaust
Stage 2: +15% HP and +24% TQ Hardware Requirements: Stage2 - Otherwise stock vehicle with the following modifications*: - Intake Requirements: Stock airbox with stock air filter - Exhaust requirements: Upgraded turbo-back exhaust**
* The addition of any other hardware may make the vehicle perform poorly. **These maps are NOT designed to be used with an aftermarket race downpipe that does not have a catalytic converter (i.e. catless). Doing so greatly increases the chance for boost spikes and boost creep.