Skip to content

Circuit Werks Mufflered Axle-Back Exhaust Lexus GS F 2016–2020

Save 20% Save 20%
Original price $1,057.99
Original price $1,057.99 - Original price $1,057.99
Original price $1,057.99
Current price $845.99
$845.99 - $845.99
Current price $845.99

The Circuit Werks Mufflered Axle-Back Exhaust System is designed specifically for the 2016–2020 Lexus GS F, providing a performance-oriented rear exhaust upgrade for the naturally aspirated 5.0L V8. Featuring 70mm piping and 90mm exhaust tips, the system is designed to deliver a deeper, sportier exhaust character while maintaining a refined sound during normal driving.

Constructed from highly polished stainless steel, the system is hand built and TIG welded to meet Circuit Werks quality standards. The muffler design, exhaust pipe dimensions, and overall layout are engineered to shape the GS F's exhaust note, providing a more subtle character during cruising that becomes more pronounced under acceleration.

Mufflered Axle-Back Design: Replaces the factory rear exhaust sections with a performance-oriented muffler configuration designed specifically for the Lexus GS F.

70mm Exhaust Piping: Uses 70mm piping through the axle-back system for a performance-oriented exhaust configuration.

90mm Exhaust Tips: Finished with 90mm exhaust tips for a sportier and more aggressive rear appearance.

Sportier V8 Sound: Designed to give the naturally aspirated 5.0L V8 a deeper and more engaging exhaust character during startup, acceleration, and spirited driving.

Sound-Controlled Design: Circuit Werks uses muffler construction, pipe dimensions, and exhaust layout to tune the overall sound characteristics of the system.

Street-Friendly Character: Designed to provide a more subtle exhaust character during normal cruising while becoming more pronounced when accelerating.

Polished Stainless Steel Construction: Manufactured from highly polished stainless steel for durability, corrosion resistance, and a premium appearance.

Hand-Built Construction: Each system is hand built as part of Circuit Werks' manufacturing process.

TIG-Welded Assembly: Exhaust components are TIG welded for a clean and durable assembly.

What's Included

  • Circuit Werks rear axle-back exhaust sections
  • Rear mufflers
  • 90mm exhaust tips

Vehicle Fitment

  • Lexus GS F (2016–2020)
  • Chassis: URL10
  • Engine: 5.0L V8
  • Engine Code: 2UR-GSE

Specifications

  • Brand: Circuit Werks
  • Product Type: Mufflered Axle-Back Exhaust System
  • Exhaust Configuration: Axle-Back
  • Material: Stainless Steel
  • Finish: High Polished
  • Piping Diameter: 70mm
  • Exhaust Tip Size: 90mm
  • Mufflers: Included
  • Construction: Hand Built
  • Welding: TIG Welded
  • Vehicle: Lexus GS F
  • Model Years: 2016–2020

Important Notes

  • Fits 2016–2020 Lexus GS F applications.
  • This is an axle-back system and includes the rear exhaust sections.
  • Does not include the Circuit Werks resonated mid-pipe sections.
  • Uses 70mm exhaust piping.
  • Features 90mm exhaust tips.
  • Verify vehicle year, model, engine, and existing exhaust configuration before ordering.
  • Exhaust sound and volume will differ from the factory exhaust system.
  • Final exhaust tone and volume may vary depending on the mid-pipe and other installed exhaust components.
  • Circuit Werks states that this product comes with a limited warranty from the purchase date. Verify current warranty terms and coverage before purchase.
  • Professional installation is recommended.
  • Inspect and retighten exhaust hardware after initial heat cycles.
  • Exhaust modifications may be subject to federal, state, and local noise regulations. The purchaser is responsible for verifying that installation and use comply with applicable laws.

Why Choose Circuit Werks?

Circuit Werks develops performance exhaust components for enthusiast vehicles with a focus on application-specific fitment, exhaust sound, and performance-oriented configurations. This mufflered axle-back system is designed specifically around the Lexus GS F and its naturally aspirated 5.0L V8.

With 70mm piping, 90mm exhaust tips, polished stainless steel construction, and hand-built TIG-welded assembly, the Circuit Werks Axle-Back Exhaust provides GS F owners with a sportier V8 exhaust character and an upgraded rear appearance without replacing the complete exhaust system.

About Us

We are passionate Lexus and Toyota enthusiasts dedicated to providing the highest quality aftermarket parts to enhance your ride. Our goal is to help you find the perfect performance upgrade, whether you're building your dream car or just adding that next improvement. We take pride in offering products that we trust for our own vehicles.

Shipping

Shipping times vary based on item availability and specific lead times. You can expect an email with an estimated shipping date within 1-3 days of placing your order. Many in-stock parts ship within 2-5 business days, while certain built-to-order items may take up to 7-10 business days. For back-ordered items, availability may vary, but we will email you with any ETA changes.

Once your items are ready to ship, we will send tracking information via email so you can easily follow your package from our warehouse to your door. Please note, some parts may be shipped separately and could arrive at different times. Shipping costs apply to the lower 48 states, unless stated otherwise, and international orders may be subject to additional customs or duties fees.

What to Expect Upon Delivery

Upon receiving your order, please inspect the items immediately for any damage or missing parts. Verify all items against the packing slip or instructions before starting installation. We cannot be held responsible for costs incurred from delays due to missing items.

If any items are damaged or missing, please get in touch with us within 14 days of receipt so we can assist with a replacement. Claims made after this period will not be honored.

Cancellation Policy

If you need to cancel or modify your order, please contact us as soon as possible. We strive to ship your order quickly, and once processing begins, cancellations may be subject to a restocking fee. Orders canceled within 24 hours of purchase may not incur a fee, but after that time, restocking fees (typically 20%) will apply depending on the items and the stage of fulfillment.

Return Policy

Customer satisfaction is our priority, and we are happy to assist with returns. However, due to the complexity of sourcing and delivering our products, returns are subject to a restocking fee (usually 20%) based on the item and manufacturer.

Before returning any items, please get in touch with us to receive a return authorization. All return requests must be made within 30 days of receiving your merchandise. Once approved, items must be returned within 14 days in their original condition. Improper packaging of returned items may result in customer responsibility for damages.

Customers are responsible for return shipping costs, unless the item is defective or we shipped the wrong item. A trackable shipping method is strongly recommended.

Warranty

We honor all manufacturer warranties and are here to support you in getting the quality products you deserve. However, please note that warranty claims are available to the original purchaser only. In certain situations, manufacturers may handle warranty claims directly, and we are unable to cover costs not specified in the manufacturer's warranty (e.g., shipping, labor). If you have any questions, feel free to reach out to us.

Emissions Notes

All parts and services offered by LunaticsCo are for competition vehicles only. Use on state and federal highways may be a violation of the EPA Clean Air Act. The Clean Air Act can be found at http://www.epa.gov/air/caa/. This document details what are considered violations of the CAA and the corresponding penalties for failure to comply. It should be read in full before purchasing or installing this competition-use-only product. Ensuring that all emissions, noise/sound, and speed/use-related laws are followed is the responsibility of the buyer(s). Installation and use of this product indicate that this disclaimer has been read, acknowledged, and fully understood by both the buyer(s) and installer(s). The buyer(s) assume all associated risks of purchase.

Federal and several state 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. LunaticsCo assumes no liability for any violations arising out of any federal, state, or provincial emissions or safety requirements on motor vehicles resulting from the customer’s modifications and/or use of LunaticsCo products. It is the responsibility of the customer to determine if their modified vehicle complies with applicable laws.