Stage 2 Subaru STI Power Package By MAPerformance | 2018-2020 Subaru WRX STI (STI-4G-S2-18+)

MAPerformance
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$1,049.99 $1,166.66Instant Savings of 10% ($116.67)

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2018-2020 WRX STi Stage 2 Hard Parts Package By MAPerformance

We are excited to offer our Subaru STI Stage 2 Performance Package! Throughout the R&D, testing phases of the EJ powered 2015+ STI platform, we have been thoroughly impressed with the performance gains from each hardware modification. Better yet, our MAPerformance STI downpipe and air intake systems were designed to support considerably higher power levels allowing for future growth; the included USA Made performance parts support power levels any bolt-on turbo upgrade can throw at them!

When comparing our MAPerformance Stage 2 power package to a stock STI, there are many advantages far beyond the improved sound and raw power. Not only are the power and torque gains inherently impressive, but it's also important to note how much less work is required from the turbo and less stress on the engine to achieve the higher power levels. 

Features

  • Capable of 331whp/347wtq (+59whp/+58wtq over STOCK!)
  • 304 Stainless Steel Components
  • 100% Mandrel Bent Piping
  • 3" Piping For Improved flow
  • Fully Tig Welded and Back-purged
  • USA MADE

Applications

What's In The Box?

Installation Instructions

Warranty

  • MAP Limited Lifetime Warranty

Customer Reviews

Based on 21 reviews
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L
Lytle Atherton
Great product

This has made the car feel like it should from the factory. With stock exhaust it’s perfect. Also customer support has been more than amazing.

J
John Niewojna
So far so good.

Solid workmanship no issues thus far. Not a huge fan of all the popping it does now though! Worth the money for a few extra horse.

t
tharindu Seneviratne
Wrx sti stage 2

Love it..!! Feels like a whole new car..!! Fast shipping and fits perfectly..!

Z
Zack f
Awesome stuff

Everything fit perfectly and has been great so far. Interested to see if a front mount intercooler will work with this intake.

C
Chad Hall
Wow

2019 Subaru STI 28K miles. Install of the intake was easy. Downpipe, no local shops would touch it so I did the install myself and was fairly easy minus some of access to some of the bolts. I paired mine with the AWE Track exhaust. The total install took some time but I made sure I warmed it up and went back and tightened everything and checked for leaks. Build quality was good, installation on point and when I turned the Key - It went from being a beast to a Monster. It totally changed the feel of the car and made it where you want to drive it everywhere. Yes it is loud but I got power, let me loose loud. Between the exhaust pops between gears and the whoosh coming from the intake, it screams, Let's Go!!! Definitely looking forward to the Stage 3 and have the money ready. I followed all MAPerformance recommendations and could not be happier with the result.