Steeda Focus ST Catted Downpipe (13-18 ST) DISCONTINUED

2 Review(s)
$125.00 (17%)
Part Number: 555 3605



Steeda Focus ST Catted Downpipe for 2013-2016 Focus ST is a great complement to exhaust modifications and increased boost, our Focus ST downpipes will provide increased horsepower and torque as well as noticeably improved throttle response and faster turbo spool.

Designed to be direct bolt in replacements, our Steeda Focus ST Catted Downpipe includes not only the hangers but the proper support bracket some aftermarket options do not include for a secure and proper installation. Manufactured from high quality T-304 stainless steel. Both catless and catted versions of our Steeda Focus ST Downpipe include and extra welded bung for installation of a wideband O2 sensor if desired.

Note: Steeda highly recommends the use of a Focus ST performance tune when using an aftermarket downpipe.

Purchase your Steeda Focus ST Catted Downpipe for your 2013-2016 Focus ST at Steeda Autosports today!

Warning: Not approved for sale in California or states that require a California E.O. #. This part has been designed and is intended for off-road application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations.

Note: Federal and several state and provincial laws prohibit the removal, modification or rendering inoperative of any part that affects emissions or safety on motor vehicles used on public streets or highways. Steeda Autosports assumes no liability for any violations arising out of any federal, state or provincial emissions or safety requirements on motor vehicles arising out of the customer's modifications and/or use of Steeda products. It is the responsibility of the customer to determine if their modified vehicle complies with applicable laws.

This limited warranty is the only express warranty applicable to Steeda Autosports products. Other rights may arise or vary from state to state in the United States. Steeda is not responsible for any time for which you may lose the use of your vehicle, any inconvenience you might be caused, the loss of your transportation or any part thereof, or any other incidental or consequential damages you may have.

Product Benefits
  • Increased throttle and turbo response
  • Increase horsepower and torque
  • Direct bolt on replacement

CA Residents: Cancer and Reproductive Harm WARNING

Fitment & Features


Manufacturer: Steeda Autosports
Made in USA: Yes

Installation Information:

Level of Difficulty: Tech Recommended
Install Time: About 2 Hours
Tools Required: Basic Shop Tools
Print Instructions: Installation Instructions

Vehicle Fitment:

Transmission Type: Automatic, Manual
Fits Model Year: 2013, 2014, 2015, 2016, 2017, 2018
Focus Model: ST

Customer Reviews

Rating Snapshot

Select a row below to filter reviews.

Average Customer Ratings


Good product
I got the last catLESS downpipe Steeda had to offer, whatever their reasons. This review will suffice for the catted downpipe as well since both units went into and back out of my car during a club install day to see any differences in sound, driveability, and easy of install. During installation I found I had more play with the engine itself having the rear motor mount disconnected from the subframe. I did that mount at the same time as the downpipe since the hardware connecting everything is interrelated, but if you're just doing the downpipe, taking out the center bolt that connects the dogbone to the rear/lower motor mount itself will give you more room to get things fit 'n finished. The absolute worst part of this is the V-band again. That fire-ring kept popping out of place making me restart the fitment process over again. Loosen the V-band as far as will go, slide it around the mated downpipe and turbine, and it'll hold it all in place so you can get that 13mm nut tightened down. Make absolutely sure you have the O2 sensor wires tucked away from the turbo and downpipe. If those wires melt, you're going to have to repeat this whole process over again to replace them. Not to mention paying a lot of money for a really foreseeable mistake. This was mated up to the OEM catback and sounds wonderful for those that don't want drone and/or loud exhaust while just cruising around. However, at wide open throttle this combination will put a smile on your face.
Did you find this helpful? 
from Georgia on 7/26/2015
Great Upgrade
I did this install myself, but would recommend a technician if you are not comfortable doing this level of work on your ST. The instructions were easy to follow and straight forward. I liked the quality of hardware supplied, especially the plug for the third bung I opted not to use... The tricky part was getting the upper clamp undone. It is way up there and has a crazy mechanical requirement to loosen enough to free the OEM pipe. With patience and many superlatives, I managed to conquer that part (both times). After carefully twisting the pipe out, I could clearly see the difference between the Steeda and stock pipes. I was very happy at my choice at this point. I removed the second O2 sensor, it was very stubborn, but I finally unscrewed it. I put in the new pipe and lost 3-5 years of my life re-tightening it and reconnecting the senors. I was again pleased at the great fit and finish of this new part. A key note, is to remember to place the O2 sensors in the most distant positions from each other if only using two sensors. If you choose to put them right next to each other (the two adjacent bungs) you may experience a check engine light. BLUF: ensure one sensor is before and one behind the CAT. I put all the remaining parts back together and took my trusty steed for a test on the nearest highway. Wow! Permasmile again! Throttle response was greatly enhanced, and the power gains were VERY noticeable. The subtle change in sound was improved to my liking as well. The only new negative effect I noticed was some vibration from what seemed to be from the vicinity of the front driver's side of the car (dash/hood area). It only occurred at certain times. I do have the Steeda RMM installed. I might have to get the TSB completed to have Ford replace the remaining two mounts to fix the issue. All in all, I am very pleased with this and would recommend it to others. I will re-look and see if everything is hanging freely and tightened down 100%. Great upgrade, thanks Team Steeda!
Did you find this helpful?  1 of 1 Found Helpful
from Georgia on 6/9/2014
There are no reviews for this product!
Back to TOP
0 Items