How to replace the spark plugs in a Subaru WRX/STI

NGK IR Plugs Set of 4
geni.us/RF3mCV [Amazon]
In this video, I show you step by step how to replace your spark plugs in a 08-14 Subaru WRX or STI. This video should simplify the process of replacing your spark plugs in your Subaru WRX or STI.

[@HarlemsGarage]

Tiny tip here... just finished my spark plugs and there was no need to remove the pump, I just squeezed the clamp and removed the hose going to it

[@Dteezyt05]

Thanks for making this. Almost wasted $300 to have this done at the shop. Took me about 3 hours, but glad I didn't lose money!

[@greekgman71]

This is by far the best instructional video for performing any kind of maintenance I have ever used! Great job! Got me through my plug job in about 2 hours

[@frontier_etc]

Wow, I've always wanted a WRX but haven't had one yet. Just changed the plugs on my car's inline 4 engine and it took probably 10 minutes. This is insane

[@asiannascarfan]

Thanks for making this video. I had a bad coil pack in cylinder #4. I would have never tried to replace it myself before watching this video. Saved me God knows how much money.

[@antdo]

lol. That cheese stick bit had me Rollin. When you first pulled it out. I was like wth is that.

[@josephloguidice1841]

Hi Blake. Thanks for this video. I did my plugs in a 2013 WRX today and I was a bit intimidated by the rear driver plug. It was still difficult for me, but I expanded the view and followed each movement you made with that damn coil pack and the same to get the plug in. The others were not so bad, as you had said, but the frame is a real restriction with those coil packs. Good video and very helpful.

[@LeonAzzollini]

I like how thorough you are mate, great videos

[@Dessla]

when you love a subie, spark plug changing comes a passion. change my in less than 20mins

[@bigbysfacepalm]

Great video. Top tip for extra insurance that you don't cross thread the plugs when you install: You can stick the plug in a small piece of spare vacuum hose as an extension and hand turn it in. You get a better feel of the threading when you do it this way rather than doing it with a spark plug socket. You can tighten it down with the socket.

[@Killermonkey1594]

Dude this video is amazing, thank you. My replacement is coming up soon and i feel much better about doing it myself and saving a bit of cash

[@garryschmidt1697]

Going to attempt this today. Not my first time doing plugs, but def first time on my 13 WRX. Thanks for a clear cut visual and instruction! Subbed!

[@litoteh]

Thanks for the video! I was able to complete the spark plug replacement in 2.5 hours. I was going to have a heart attack when the engine was cranking for 3 seconds and then started, instead of instantaneous start up. My tuner recommended 0.028 gap as opposed to the factory suggested gap of 0.030. I did go NGK 2309 one step colder plugs. Now for a tune. Keep up with the awesome vids!

[@andrewphilpott1020]

This is a great guide to this tricky job, rotating the back ones 180 degrees makes life easier. Also I removed the rubber part out of my spark plug socket as I got the socket stuck on the plug once it was tightened up! 😉

[@icecoldflurry]

Just changed my spark plugs and this video made it much easier. I totally agree with the comment of driver's side rear is the hardest to do so I would suggest doing it first and the rest is cake. Definitely recommend knuckle extensions and if you have a lock on the extension it makes it that much easier to pull the socket out. I also would recommend to perform a compression test while you have everything apart. Simple procedure and will give you a piece of mind before you start modding your car.

[@ecpoirier]

I've been watching a whole lot of KZbin videos during this Covid-19 lockdown, and ordered some plugs after seeing how easy it looked. Problem is, other people's 2010 WRX is different than my 2010 WRX. THANK YOU for posting a video that I can rely on to be accurate. Have I said THANK YOU?

[@LB-kv5ve]

Another great DIY, thanks Blake. Just did the plugs in my 2010 WRX.

[@Revo5608L]

Great video, well done. Just replaced the plugs in my 2014 WRX with OEM. I admit I put this off far too long, 100,000 miles... But I have to say after seeing a few videos of plugs from WRX/STIs I'm surprised how rich they suggest the cars are running. My plugs looked much healthier after 100,000 miles to which I attribute having the car tuned by COBB following break in.

[@NisSubieTechA]

Thanks for the walk through. Saved me some time on getting #4 out.

[@wutdadilyo]

Thanks Blake for this video! I needed to figure out how to change my coil pack on cylinder 4 of my 2011 wrx hatch and your video gives perfect and concise instructions on how I can do so. My only suggestion would be to be weary of your camera settings (I have a feeling you have it set in auto focus mode) because its blurry on parts where I would love for your video to be clear to see what you're talking about. Otherwise, great video and keep up the great work! I have subscribed to you so I can learn how to continue to maintain my vehicle!