What is a Stage 3 WRX
Rachel Fowler
Updated on April 11, 2026
Stage 3 kits include the GrimmSpeed intercooler and charge pipe, a combo that will not only increase safety with your more powerful setup, but will allow you to make addition power thanks to cooler charge temps and lower restriction at higher RPMs.
What makes a WRX Stage 2?
The GrimmSpeed Stage 2 Power Package is a well-rounded kit, offering increased power and torque output thanks to reduced restriction before and after the turbo, as well as a more aggressive street presence thanks to the intake and exhaust tones.
What does Stage 3 STI need?
The Stage 3 Power Package for STI Includes: COBB Accessport, SF Intake System, SF Airbox, SS 3″ Downpipe, Cat-Back Exhaust, SS Turbo Heatshield, AEM High Flow Fuel Pump, Top Feed 1050x Fuel Injectors, Fuel Rails, Fuel Rail Line Kit, Fuel Pressure Regulator for Fuel Rail Kit, Subaru Throttle Body Coupler, Silicone Turbo …
What is a Stage 3 Subaru STI?
The GrimmSpeed Stage 3 Power Package represents the pinnacle of bolt-on performance for your 2008-2014 Subaru STI. … On the intake side, the GrimmSpeed Intake adds an additional performance increase by reducing pre-turbo restriction, which allows your turbo to build boost more quickly and more efficiently.What do you need for Cobb Stage 3?
- Intake Requirements: COBB SF Intake – Required.
- Turbo Inlet. COBB Turbo Inlet Hose – Required.
- Intercooler. COBB Front Mount Intercooler (FMIC)- Required.
- Cam-Driven Fuel Pump: …
- Exhaust Requirements: …
- Downpipe. …
- Boost Targets. …
- All other intake, exhaust, and engine components must be stock.
Which is better STI or Evo?
The 2015 STI has a bit of improved steering and suspension over previous generations, but any reviews and first-hand experiences say the Evo still feels sharper and grounded while still being light. If you buy a stock Evo, you can have the better handling without spending the extra money if you can’t afford it.
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.
What is Cobb stage2?
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″ Turboback exhaust and Big SF Intake & Airbox combo.What is a spec C STI?
The Spec C has a rear mechanical limited-slip differential, replacing the Torsen variety, uniquely fitted STI dampers and springs, a thicker rear stabilizer, and grippier Potenza RE070 tires that all work together to get the power down more effectively than in any STI before it.
How much HP does Cobb Stage 2 add?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.
Article first time published onIs Cobb OTS tune 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 does Cobb AccessPort do?
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.
How much HP does an Accessport add?
Peak numbers are up 3% HP and 20 % TQ. The Stage 2 OTS map will provide an additional bump in power, seeing maximum gains of 29% HP and 34% TQ over stock. Peak gains are up 3.5% HP and 29% TQ over an unmodified car. More information regarding COBB Off The Shelf Maps can be found on the Map Notes Page.
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 can you get out of a WRX?
When you get behind the wheel of the WRX STI and WRX STI Limited models equipped with the standard 2.5-liter DOHC turbocharged engine, you’ll receive a whopping 310 horsepower.
Do you need an Accessport to tune a WRX?
Once you’ve received your Accessport, it’s time to use it to tune your Subaru! … You will need the Accessport and OBD-II cable (included with the Accessport) to perform the installation. Make sure the vehicle’s ignition is off and the engine is not running.
How much is a stock tune?
Cost To Tune A Stock Car (& Is It Worth It?) Tuning means updating your car’s configuration to fit your needs – may it be performance or gas mileage. This costs $600 – $1000 depending on what you need.
How can I get more horsepower out of my WRX?
An aftermarket exhaust will allow the exhaust gases to move more freely throughout the system. This increase in flow allows your turbocharger to spool up faster and spin faster. This result is increased horsepower, torque, and throttle response for a more powerful and enjoyable driving experience.
Can a WRX beat a Evo?
The WRX uses Subaru’s familiar flat-four engine layout. … Like the Evo, the WRX has standard torque vectoring all-wheel drive on all models. If you’re looking for raw performance, the Lancer Evo has the WRX beat by a fairly significant margin, especially in the torque department.
Is Evo more reliable than WRX?
The evo is more reliable because it uses a traditional inline 4 cylinder. The STI uses a boxer engine that is not known for long term reliability. Really depends on what you plan on doing with the car.
What car is better than WRX?
A more worthy competitor to the WRX could be found in the 2018 Honda Civic Type R, retailing at $35,595. This car offers a 2.0-liter engine with 306 horsepower and 295 pound-feet of torque, again mated to a six-speed manual transmission. This Civic will pull from 0-60 in just 4.9 seconds.
What is a Subaru Spec C?
The spec C is Subaru’s homologation model which features slight improvements over the standard spec model for racing in the Production World Rally (PWRC) and Group N rally. … Benefiting the race cars, are new suspension pickups and beefier McPherson strut arrangements with braces to improve rigidity.
What mods are needed for Stage 2?
The required hardware for their stage 2 software includes a full turbo-back exhaust with a sports-cat and a high-flow air intake. They also recommend an uprated intercooler, uprated engine mounts, and an uprated throttle pipe.
What is needed for Stage 2 Cobb tune?
- Intake Requirements: Stock airbox or COBB Tuning SF Intake SUB00001IA.
- Exhaust Requirements: Stock or COBB Cat-Back Exhaust 512100. COBB Subaru GESi Catted Downpipe 512210.
- Boost Targets: ACN91: ~13.34psi peak boost pressure tapering down to ~9.0psi by the 6700RPM redline, +/- 0.7 psi.
How much HP is a Stage 2 tune?
Stage 1 Tune up to 549 HP, Stage 2 up to 585 HP, Stage 3 up to 613 HP.
Will there be a 2021 WRX STI?
Subaru of America just uncovered the 2022 Subaru WRX, and performance customers aren’t waiting for the new model to arrive. While Subaru just announced overall sales dropped 30.0 percent last month, the 2021 WRX and 2021 WRX STI sales for September 2021 increased over the same month in 2020.
How safe is Cobb Stage 2?
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 OTS tune?
An OTS tune is a tune that they think SHOULD work well for your car and the mods that the deem “Stage 2”(whatever that means). Whereas an e-tune will be tuned to your specific car via data logs that you’re sending back to the tuner.
How much HP does a Stage 1 tune add?
A stage 1 tune is simply an ECU remap or chip tune. This is the most cost-effective way to modify any vehicle for performance. Turbo-diesel and turbo-petrol vehicles respond extremely well to stage 1 tuning and commonly see a 20 – 40% increase in bhp and torque.
How much is a Cobb tune?
COBB PRO-Tune SPECIAL $399.
Does Accessport have to be plugged in?
The Accessport does not need to be plugged into the vehicle for the calibration to be in effect. You can disconnect the Accessport at this time or leave it plugged in to use any of the many features outlined below. Please note that the Accessport is designed to work with only one vehicle at a time.