Ford Sound Suppression Chamber Focus RS 2016-2018

$ 55.00

Availability: Ships in 24 hours
Product Code: 894600

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The Ford Sound Suppression Chamber Focus RS 2016-2018 is a direct replacement to the factory sound suppression resonance chamber. Its purpose is to reduce the intake whistle sounds that accompany aftermarket intakes. This unit is aluminum with an anodized black finish.


Larger aftermarket intakes create an imbalance with the factory sound suppression chamber resulting in an audible whistle. The COBB Ford Sound Suppression Chamber increases volume over the factory unit which cancels out the resonance to reduce or eliminate the whistle noise. It works with most aftermarket intakes.

Ford Sound Suppression Chamber Focus RS 2016-2018
  • Reduce or eliminate intake whistle noise
  • Works with most aftermarket intakes
  • Anodized Black Aluminum
  • No Tuning Required

Customer Photos

Ford Sound Suppression Chamber Focus RS 2016-2018 is rated 4.7 out of 5 by 7.
Rated 5 out of 5 by from One Piece! I ended up putting my car on jack stands while the front passenger wheel is off. I got a Snap Ring pliers on hand and used the 45 degree tip. I also had mini pick and hook set but ended not using it since the snap ring is orient just right. It was easy to remove it coming from the wheel well, not to bad to take it out. Dab a bit of lithium grease on the o-ring for ease of install and a better seal. Putting the snap ring back was easier doing it from the bottom. I just move a cable mounted to car with a pry tool to have more hand space. Used one hand to shimmy the top part of the snap ring to the hole and the other to hold the pliers in place. after that I put the cable back. Very happy with it! It's a one piece, no silicone/rubber part (other than the O-ring). Less parts than the other brands. Also a bonus, it compliments the installed FP Recirc valve.
Date published: 2019-02-19
Rated 5 out of 5 by from Quality product as always. Works as intended. I think it should be more of a 2 star rating instead of a 1 star for difficulty because of the small space you have to work with, even with the tire off it’s a pain. I just wish this was included with the intake or there was an option to include it when purchasing the intake. Either way, I’m very happy I no longer have to hear that high pitched whistle!
Date published: 2019-05-08
Rated 5 out of 5 by from Whistle gone! Great effective product. The product works as described - the intake whistle was eliminated. Installation was a challenge for my large hands but I did complete the installation from below. 45 degree snap ring pliers are essential. The results were well worth the effort. This is an extremely nice, well made product.
Date published: 2019-06-04
Rated 5 out of 5 by from No more whistle Easy install with 45 degree snap ring pliers, totally fixed my whistle after installing the COBB intake. Only thing better would be if this was included WITH the intake so I didn't have to diagnose what to do about the intake introduced whistle, order the part, and finally install.
Date published: 2019-04-04
Rated 5 out of 5 by from Sound Suppression Chamber Well constructed and does what it says, no more whistle. It's a little a tricky removing the snap ring, I had to use a 45 degree angle snap ring pliers. Straight and 90 degree bent won't work.
Date published: 2019-02-11
Rated 3 out of 5 by from Nice piece Piece looks great, getting the snap ring back in was a pain. Still have my whistle so that’s kind of unfortunate.
Date published: 2019-06-12
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