How can I get more horsepower from my Subaru STI?

Getting a remap done is one of the easiest ways to get more power out of your car. COBB tuning does stage 1 maps for $995 which is not that expensive for a generous boost in power. Increasing turbo boost pressure is also one of the easiest and relatively inexpensive ways to get more horsepower.

How fast is a 400hp STI?

It’s running an Outback 2.5-liter boxer powerplant? This Subaru WRX STI runs a quick 10.99 elapsed time at the drag strip and it doesn’t even have an STI engine.

How much horsepower can an STI Engine handle?

Skim through the Subaru forums and you’ll find the question on so many STI owners’ minds, “how much horsepower can my EJ257 handle?” The answer is different for everyone, but the general consensus is that the 400-450whp range is when you might want to clear out the garage and get ready to pull a motor.

How can I get faster than an STI for cheap?

Parts needed:

1. Larger turbo. The cheap option here is the IHI VF39.
2. Larger intercooler. Once again the stock USDM STI intercooler is the cheap way to go here.
3. Larger hood scoop. So you’ve got a larger intercooler but it would help to get more air to it right?
4. Catless up-pipe.
5. Downpipe.
6. Axle back exhaust.
7. ECU.
8. Fuel.

What is the fastest Subaru STI?

The fastest Subaru WRX STI (street-legal) in the world The fastest Subaru WRX STI (street-legal) built by Tensai ( United Arab Emirates ) took a quarter-mile run in 8.9 seconds, starting from 0 to 60 mph almost in 1.9 seconds, making it the fastest street-legal modified Subaru STI in the world so far.

Is the STI getting a new engine?

We know the next-generation 2021 Subaru WRX STI is getting a new engine, but what engine will power the WRX? The last Subaru model to get a complete overhaul is the performance-tuned WRX STI and the sport-tuned WRX sedans.

How much horsepower can the EJ25 handle?

300 whp
300 whp: The EJ20/EJ25 engines can handle 300 whp maximum with stock internals with no further modifications other than a proper fuel management tune.

How much power can a 2015 STI handle?

They will hold up to 400 whp (again as shown in our PPIHC car), but if you want to push up to or beyond that power level, a set of aftermarket H-Beam rods would be recommended.

Is STI faster than WRX?

Driving experience is the big difference between the Subaru WRX and the WRX STI. Simply put, the STI has more of everything. It goes faster, corners flatter, and brakes harder. The STI also includes the driver-controlled center differential.

Can you make a WRX faster than an STI?

The WRX can do 0-60 in 5.4 seconds. With simple bolt-on parts (bolt-on meaning you don’t have to take apart the actual block or heads), we can increase the horsepower of the WRX (either standard or STI) to over 400. This will make the car faster than nearly anything on the road.

What is a STI engine?

The STi has a 2.5 L 4-cyl turbocharged “EJ” boxer or a “flat four”. More specifically, it is an EJ25T engine (EJ 2.5 L Turbocharged) by Subaru’s designation. The EJ engine design has been around since 1989 and has many uses, including for light aircraft. It is one of Subaru’s mainstay engines.

What is WRX and STI?

STI stands for “Subaru Tecnica International“. It’s basically a better Subaru WRX with performance-tuned engines, transmissions, and suspensions. STI is the division of Fuji Heavy Industry’s that specializes in motorsports.

Is the Subaru WRX STI limited?

The 2017 Subaru WRX is only available as a sedan. There are a total of five trim levels when you split up the standard WRX and the more powerful WRX STI. The standard WRX can be had in base, Premium and Limited trims; the WRX STI comes only in base and Limited trim levels.