Boomba Racing BLOW OFF VALVE RED for 2013+ Ford Focus ST

was a pain in the butt to put on as i only had 2 8 inch extensions but with a longer one you would be fine. its simple, just take the tire off, and access the stock bypass valve with 3 5mm allen head bolts and a bracket along with it. replace with new blow off valve and reinstall in reverse order. it took me almost 2 hours start to finish because my extension allowed for maybe an 1/8 of a turn of each bolt before i had to completely reset the wrench for another 1/8 turn. was torture. tighten all bolts well but not all thee way or they'll pull on each other and cross thread. other than that its simple and sounds excellent.Edit: I just want to mention that I too would get sick of the constant sneezing sound but my entire life had wanted a turbo with a loud blow off valve. That being said I have a tune with the aggressive throttle meaning I build boost with the slightest press of the pedal yet I can shift every year and accelerate up to the speed limit in any street without building any boost and having that constant sneezing sound when you don't want it like people say..... when I do want it, 99 percent of time, it sounds incredible. This with an intake gets serious whipple and turbo sounds going!

This is in no way a loud blow off valve. This is a suttle BOV, only doing what its made for and not obnoxious. I guess that has to do with the stock turbo setup also. I wasn't expecting my Focus ST to sound like a 1000 hp supra BOV, but it is definitely quieter than other ST BOV I have heard. I quite like it though. It doesn't attract too much attention when shifting and when paired with a custom Accessport map, it doesn't open/close unless under heavy acceleration and higher than daily driving RPM shifting. I would definitely recommend to others. Just keep your stock parts to replace it back later down the road to OEM specs.

Not gonna lie, this was a bit of a pain to get the screws into, but all said and done it only took about 20 minutes to install. Used a grinder to cut down the bracket and installed the bottom right screw first (important). I didn’t put the red bushings on because you can’t see them and it’s so tight in there you really can’t keep them in place long enough to get the screw in. Sounds great!

Easy install, modifying the OEM bracket was cake, did it with a pair of needle nose pliers and a dremel. BOV is loud so it gets annoying when ur driving in stop go traffic, However if ur playing around it's so much fun. overall, I love it. Highly recommened to anyone who wants the sound.I did not get my boomba sticker though so that sucks lol

I just installed this thing on my 2017 Focus st. It's loud. It doesn't take much to get it hissing at you. It was really easy to install, only one busted knuckle. It holds boost without any leaks and does not throw any codes. So far. It came with everything needed and a sticker. I recommend this product over turbosmart.

This is the best BOV money can buy. Fits and sounds great on my 2017 Focus ST. It is LOUD and very satisfying. I've provided pictures showing how it arrives, compared to the stock valve, and after installation. Installation is not hard but frustrating more than anything. The wheel well is a cramped space and took me an hour. Patience is key and I recommend searching boomba's installation video on youtube.

No words necessary. If you've seen the YouTube videos people have posted but haven't heard one in person, prepare to have your socks blown off!

About the loudest blow off valve you could ask for. Quality construction, great finish, and clear installation video available on YouTube. I do wish it would have come with a sticker though!