Ford Focus ST Forum banner

1 - 4 of 4 Posts

·
Registered
Joined
·
1,456 Posts
Discussion Starter · #1 ·
When Ford updated the Focus ST engine from the gas-guzzling 2.5L to the 2.0L EcoBoost, the car received a 25hp upgrade but lost some of its roar in the process. Obviously power beats out sound, but Ford wanted both! To solve this, they developed the sound symposer, which channels noise from the induction system into the cabin. The 2013-2016 Ford Focus ST features this sound symposer stock from the factory. It’s certainly a nice feature for the stock ST, as that little bit of added sound in the interior rounds out the sporty feel and performance of the car. However, as you start modifying the engine, you’ll soon find that the symposer is a superfluous piece.

On one hand, the added engine (induction) sound in the cabin can block out the actual sound of upgrades like blow-off valves or a cold air intake. On the other hand, the symposer and its tubing take up valuable space in the engine bay. With added modifications, it can get a bit cluttered, which makes it more difficult to access installed mods, as well as adding new ones.

Steeda’s Focus ST Sound Symposer Delete is a simple and cost-effective way to address this issue! A billet aluminum block-off plate, with a factory-sized O-ring, ensures a secure seal so that boost pressure is maintained. The provided plug goes on the interior side to stop the noise from seeping into the cabin, and lastly, the included zip tie is used to secure the symposer harness. This keeps it away from the nearby shift linkage. We wouldn’t want any issues there! Another version of the kit comes with the plate drilled and tapped for a 1/8″ NPT fitting. This gives you the option of tapping into the intake manifold for a boost or vacuum connection. We include a fitting to use for the connection, and a plug to install in case you decide not to use this port.

With a quick and easy, five to ten minute install, you’ll have this upgrade done, and your ST will be sounding fierce. If you ever need to revert back to stock, the uninstall is just as easy!

https://www.steeda.com/steeda-focus-st-symposer-delete-13-15-st-555-3179



Best Regards,

TJ
 

·
Registered
Joined
·
1,285 Posts
Had one for years. Couldn't stand the sound symposer; sounded like an asthmatic Subaru.
 

·
Registered
Joined
·
83 Posts
When Ford updated the Focus ST engine from the gas-guzzling 2.5L to the 2.0L EcoBoost, the car received a 25hp upgrade but lost some of its roar in the process. Obviously power beats out sound, but Ford wanted both! To solve this, they developed the sound symposer, which channels noise from the induction system into the cabin. The 2013-2016 Ford Focus ST features this sound symposer stock from the factory. It’s certainly a nice feature for the stock ST, as that little bit of added sound in the interior rounds out the sporty feel and performance of the car. However, as you start modifying the engine, you’ll soon find that the symposer is a superfluous piece.

On one hand, the added engine (induction) sound in the cabin can block out the actual sound of upgrades like blow-off valves or a cold air intake. On the other hand, the symposer and its tubing take up valuable space in the engine bay. With added modifications, it can get a bit cluttered, which makes it more difficult to access installed mods, as well as adding new ones.

Steeda’s Focus ST Sound Symposer Delete is a simple and cost-effective way to address this issue! A billet aluminum block-off plate, with a factory-sized O-ring, ensures a secure seal so that boost pressure is maintained. The provided plug goes on the interior side to stop the noise from seeping into the cabin, and lastly, the included zip tie is used to secure the symposer harness. This keeps it away from the nearby shift linkage. We wouldn’t want any issues there! Another version of the kit comes with the plate drilled and tapped for a 1/8″ NPT fitting. This gives you the option of tapping into the intake manifold for a boost or vacuum connection. We include a fitting to use for the connection, and a plug to install in case you decide not to use this port.

With a quick and easy, five to ten minute install, you’ll have this upgrade done, and your ST will be sounding fierce. If you ever need to revert back to stock, the uninstall is just as easy!

https://www.steeda.com/steeda-focus-st-symposer-delete-13-15-st-555-3179



Best Regards,

TJ


Just installed your sound symposer delete today. Engine sounds great w/o the symposer installed.

As a precaution, I went and put a little plastic bag over that sound symposer harness connector, before zip tying it out of the way, in order to keep dirt and water out of it.

Just what is the purpose of that sound symposer harness connector?

Also, would you happen to know the recommended torque values for the mounting bolts?

Thanks.
 

·
Registered
Joined
·
8 Posts
Great mod. Really brought out the spooling noise of K03 and gave the engine a just overall meaner sound. Also can hear my radio much better, a lot of wins with this mod.
 
1 - 4 of 4 Posts
Top