SKU: 24572611524

XForce | Ford Focus RS Varex Valved Cat-Back System with Smartbox 2016-2018 | ES-FRS16VMKSB-CBS

Sale price$830.25 Regular price$922.50
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

XForce | Ford Focus RS Varex Valved Cat-Back System with Smartbox 2016-2018 | ES-FRS16VMKSB-CBSFord Focus RS Smartbox Equipped Varex Valved Cat Back System ES FRS16VMKSB CBS Taking the sound of your Ford Focus RS to the next level couldnt be easier with our carefully crafted 304 grade stainless steel cat back exhaust system. Designed and tested in our Australian R&D facility, this 3 mandrel bent system is a proven package that adds a deep, crisp tone and the perfect level of crackle and pop to the turbocharged 2. 3L engine. The standout feature

Ford Focus RS Smartbox Equipped Varex Valved Cat-Back System - ES-FRS16VMKSB-CBS

Taking the sound of your Ford Focus RS to the next level couldn’t be easier with our carefully crafted 304-grade stainless steel cat-back exhaust system. Designed and tested in our Australian R&D facility, this 3” mandrel-bent system is a proven package that adds a deep, crisp tone and the perfect level of crackle and pop to the turbocharged 2.3L engine.

The standout feature is the Varex valve-controlled muffler, allowing you to switch from a tame, neighborhood-friendly volume to an unleashed, aggressive roar at the touch of a button. This kit includes the Smartbox, the ultimate in exhaust control. Using our patented Bluetooth smartphone app, Smartbox provides pre-set automatic valve control, GEO-fencing, and precise manual adjustment to truly make the sound yours.

What's in the Box?

  • 1x 3" Matte Finish 304 Stainless Steel Cat-Back System
  • 1x Centre Hotdog Resonator
  • 1x Varex Valved Rear Muffler (Polished Stainless)
  • 1x Smartbox Control Module
  • Dual 4.5" Double-Wall Black Stainless Steel Tips
  • All Necessary Gaskets, Nuts, and Bolts

Features:

  • 304 Stainless Steel: High-grade construction for maximum durability and corrosion resistance.
  • Varex Valved Technology: Direct control over your exhaust sound volume via the internal electronic valve.
  • Smartbox Included: Enables smartphone app control, GEO-fencing (sound based on location), and Matrix Mode for automated valve adjustment.
  • 3" Mandrel-Bent Tubing: Matte finish pipework optimized for high-velocity exhaust flow and power gains.
  • 4.5" Double-Wall Black Tips: Massive, premium black tips for a stealthy and aggressive rear-end aesthetic.
  • Hotdog Resonator: Specifically designed to maintain a clean exhaust note while reducing unwanted interior drone.

Specifications:

  • Part Number: ES-FRS16VMKSB-CBS
  • System Type: Cat-Back Exhaust
  • Pipe Diameter: 3" (76.2mm)
  • Material: 304 Stainless Steel
  • Valve Control: Varex with Smartbox (App Controlled)
  • Tip Size: Dual 4.5" Double-Wall
  • Tip Finish: Black Stainless Steel

Important Information

  • The image shown may not reflect the actual product
  • Shipping times may vary depending on destination and stock availability
  • Smartbox Connectivity: Requires a compatible smartphone and the Xforce Varex App for full functionality.
  • Installation Note: Electrical wiring is required for the Varex muffler and Smartbox module. Professional installation is highly recommended.

Vehicle Applications:

Make Model From To Body Series Engine Variant Drivetrain
FORD FOCUS 2016 2018 Hatchback RS (LZ) 2.3L Turbo RS AWD

 

Warranty Information
Product Type Warranty Period
304 & 201 Stainless Steel Exhaust Systems 60 Months
Accessories 12 Months
Catalytic Converters 12 Months
Electronic Products (Including SmartBox) 12 Months
Mild Steel & 409 Stainless Steel Exhaust Systems 24 Months
Mild Steel Headers 12 Months
Stainless Steel Headers 24 Months
Universal 304 Stainless Steel Mufflers 24 Months
Universal Mild Steel & 409 Stainless Steel Mufflers 12 Months

Payment & Security:
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 24572611524

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 1809 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Chris
Massapequa, US
★★★★★ 4
4 lefts vs 2 rights
Size: Medium, Color: (001) Black / Black / Castlerock, Size: Medium, Color: (001) Black / Black / Castlerock
I ordered a set of three. I ended up with four left socks and two right socks lol. Granted it doesn’t matter unless you’re OCD. JEEZ. Love the socks but not the attention to detail the sock company did on matching left/right marked socks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
J
Verified Purchase
Jill
Charlottesville, US
★★★★★ 5
My favorite socks
Size: Medium, Color: (001) Black / Black / Castlerock
I love love, love the left and right socks one has an L one has an R and they fit so well and they’re so comfy for running jogging or walking. They are my favorite socks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 8, 2026
V
Verified Purchase
vbgirlfla
Pawtucket, US
★★★★★ 5
Hold up to tough wear - definitely recommend
Size: X-Large, Color: (001) Black / Black / Castlerock
These are my teens favorite socks. We've ordered multiple sets. Given that he tends to wear then as slippers I am really impressed with how they hold up. The extra large size is great for bigger feet. They wash well and I didn't notice any shrinkage, fading or pilling. This set is going to college with him.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
J
Verified Purchase
Jana
Bozeman, US
★★★★★ 5
Good quality
Size: Large, Color: (400) Royal / White / Mod Gray
To big! I am female size 9 and Amazon was recommending for me size L. Yes, my socks is wearing my boyfriend. I need to buy smaller size
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 13, 2025
S
Verified Purchase
September Hall
New York, US
★★★★★ 5
Great no show socks
Size: Small, Color: (725) Oxford Brown / Oxford Brown / Black
Very comfortable and perfect fit for my small feet. I love the full coverage sock feel with a totally no show sock.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026

recommand products