One last thing, if you are mechanically inclined I'd say do it yourself. You will learn a ton about your engine which is always helpful down the road.

I am an engineer, I build complex machines for a living and I grew up working on vheicles - my grandpa was the senior engineer at two GM plants in the 50's, 60's and 70's. Having said that, you are not breaking any major gaskets, youre not doing valve work, not removing the head, you aint dropping a gear box, etc. This is something you can do yourself.

I've seen other posts of people wanting to do other stuff while they do the install or already thinking about modifying the Tune from Magnuson or swapping out pulleys - dont! Magnuson knows what they are doing and they work with Toyota directly. Do one mod at a time. Ask Magnuson or Toyota before modifying the SC system.

The 4Runner is a very well engineered vehicle and Magnuson makes SC's for Toyota. This SC was specifically made to work as a long term bolt-on upgrade for the 4R's, it was thoroughly tested and has a great track record. It's not a race car and never will be.

I live at a higher elevation and go out in even higher elevations - thats why I wanted the SC. I have a 9 month old '22 ORP built in Ocotber of '21.