I have a 2021 WRX STI Limited and decided to upgrade. This is my 1st Subie or a car without a carborator period so I so new to this. 1st I was kinda nervous cause my car only has 26,000mile and I keep hearing how sensitive the blocks are on the EJ motors. Finally I decided to go for it. I went back and forth on on should get Cobb or Maperformance. After goin over thousands of reviews and videos I finally went with Maperformance considering it was right at 1,000 dollars and Cobb was around 3,000 plus. Also when I read Maperformance with a tune could give me 335 to the wheel hp I had to try it. It come with directions for the downpipe and the intake which made it so much easier. Best thing is how everything mount right up. I didnt have any trouble at all considering i have a 3in Borlas S-type catback and I had read where some had to get an adaptor. It would have honestly been very simple if I had a lift to use. It was 100degrees and all I had was 2 little plastic ramps to pull it up on and my chest would rubb the car bottom when draggin myself in and out from under the car. But I still done it all with no help all in 1 day. It only took me about 1 hour to do the intake and Im gonna say probly around 5 hours on the downpipe. I would say I could have changed the downpipe easily in 3 hours if I had a lift or some way of getting it at least 12inchs higher than it was. My Borla already gave my car a very deep rumble but not to loud. Now with the downpipe it is has a super deep sound. Actually Id never dream a 4 cylinder could ever possibly has such a sound. I will say it did make it a bit much louder but surprisingly not so bad inside the cab. I was amazed by the change it put in my car. Oh and I only put an E-Tune on it and Im getting my revised MAP today. It gave me gains everywhere. I mean the torque is unreal. Now it doesnt matter if Im down in low rpm or in high, it dont matter where I let off and get back into it, its there! Oh and lastly, the sound of the turbo!!! Its so awesome to everytime ya hit the fuel you can hear that wine and the suction from the intake espec when ya let off. Im am so glad I finally done it. Right now I would tell anybody that owns a STI, U GOTTA DO IT!! EASIEST 5STAR IVE EVER GIVEN!!
