How much horsepower does Stage 2 add to WRX?
Emma Martin
Published Feb 12, 2026
How much horsepower does Stage 2 add to WRX?
Stage 2 and Stage2+BigSF produce peak gains of +19%HP / +40% TQ over stock and maximum gains of +110% HP / +110% TQ over stock when using 93 octane fuel.
Is Cobb Stage 2 tune safe?
Flycaster said: Target boost for the Cobb Stage 2 maps is 17.5 psi, + 0.5 psi. The Cobb maps are considered “safe” by just about everyone other than SOA, especially if you run their 91 oct map.
What is needed for Stage 2 Cobb tune?
Stage 2
- Intake Requirements: COBB SF Intake – Required.
- Turbo Inlet. COBB Turbo Inlet Hose – Required.
- Intercooler. Stock intercooler- Required.
- Cam-Driven Fuel Pump: Autotech High Volume Fuel Pump (CDFP)- Required.
- Exhaust Requirements:
- Downpipe.
- Boost Targets.
- All other intake, exhaust, and engine components must be stock.
How much HP does Cobb Stage 1 Add to WRX?
The COBB Stage 1+ Big SF Power Package for 2015-2020 WRXs can add up to a 10% horsepower and torque gain to your Subie thanks to the combination of a COBB Big SF Cold Air Intake and a COBB Accessport V3 loaded down with a COBB Off-the-Shelf (OTS) tune.
How many HP does Stage 2 add?
A typical Stage 2 has generally +20-25% more HP than stock.
What does a Cobb Stage 2 do?
The COBB Stage 2+Big SF Power Package is a simple bolt-on and tuning solution that will allow you to maximize the power output of your 2015+ WRX 6MT! The heart of this package is the Accessport V3. It also provides increased airflow from a 3″ Stainless Steel Turboback exhaust and Big SF Intake & Airbox combo.
Are Cobb off the shelf tunes Safe?
Yes they are safe. They are nothing more than a tool to simplify the tuning process (and yes they do show nifty gauges as well). As a tool though it enables you to use different maps on your car tailored to whatever modifications you have.
What is a Cobb AccessPORT used for?
The Cobb AccessPORT is the world’s most flexible and easiest to use ECU upgrade solution for your Subaru. The AccessPORT allows you to replace conservative factory settings with more aggressive calibrations to unlock free power hidden within your ECU. This is the last engine management solution you’ll ever need.
What is a stage 2+ WRX?
The COBB Stage 2+Big SF Power Package is a simple bolt-on and tuning solution that will allow you to maximize the power output of your 2015+ WRX 6MT! It also provides increased airflow from a 3″ Stainless Steel Turboback exhaust and Big SF Intake & Airbox combo.
How much HP does a Cobb tuner add?
COBB shows that Stage 1 adds about 20 hp and 60 lb-ft of torque with just the COBB AccessPort and a panel filter; Stage 2 adds 65 hp and about 75 lb-ft over stock with COBB’s new EcoStang intercooler system and recommended cat-back exhaust; and Stage 3 finds a whopping 81 hp and 80 lb-ft of torque with a required turbo …
How much HP does a Stage 2 add?
Stage 2: this is typically referred to an engine with a performance cam upgrade as well as the other components within a Stage 1 combination. A typical Stage 2 has generally +20-25% more HP than stock.
What is a Stage 4 tune?
Stage 4. Stage 4 is the last state of tuning for most cars. What’s modified for a tune to be classed as stage 4 is open to interpretation, but at the very least, it is here that an upgraded turbocharger/ supercharger, such as a hybrid turbo, is installed.