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Lunaticsco Circuit Werks stainless steel cat-back exhaust system for Lexus IS F with mid-pipe, Y-pipe, and mufflers.

Circuit Werks Cat-Back Exhaust System Lexus IS F 2008–2014

by Circuit Werks
Coming Soon
$2,093.99
$2,093.99 - $2,093.99
$2,093.99
$1,674.99
$1,674.99 - $1,674.99
$1,674.99

The Circuit Werks Cat-Back Exhaust System is designed for the 2008–2014 Lexus IS F, providing a complete exhaust upgrade that includes the mid-pipe, Y-pipe, and rear muffler sections. Designed specifically around the IS F's naturally aspirated V8, the system uses 70mm (2.75-inch) main piping with a resonated straight-through configuration to produce a deeper, sportier exhaust character.

The Y-pipe transitions the main exhaust section into dual 50mm muffler sections while retaining the factory Lexus exhaust tips integrated into the rear bumper. O2 sensor bungs and exhaust gaskets are included, providing a comprehensive cat-back solution without changing the factory rear tip appearance.

Complete Cat-Back System: Includes the mid-pipe, Y-pipe, and rear muffler sections for a comprehensive exhaust upgrade.

70mm Main Exhaust Piping: Uses 70mm (approximately 2.75-inch) main piping through the exhaust system.

Dual 50mm Muffler Sections: The Y-pipe splits the exhaust into dual 50mm sections leading to the rear mufflers.

Resonated Straight-Through Design: Combines a straight-through exhaust configuration with an integrated resonator to provide a performance-oriented exhaust tone while helping manage undesirable resonance.

Retains Factory Exhaust Tips: Designed to work with the original Lexus IS F exhaust tips located in the rear bumper, maintaining the vehicle's factory exterior appearance.

Integrated Y-Pipe: Includes the Y-pipe required to transition from the main exhaust piping into the dual rear muffler sections.

O2 Sensor Bungs: Equipped with O2 sensor bungs as part of the exhaust system.

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

Sound-Controlled Design: The resonator, mufflers, pipe dimensions, and overall exhaust layout are designed to shape the sound characteristics of the system.

Gaskets Included: Exhaust gaskets are included for installation.

What's Included

  • Circuit Werks resonated mid-pipe
  • Circuit Werks Y-pipe
  • Circuit Werks rear muffler sections
  • Exhaust gaskets

Vehicle Fitment

  • Lexus IS F (2008–2014)
  • Chassis: USE20
  • Engine: 5.0L V8
  • Engine Code: 2UR-GSE
  • Factory bumper exhaust tips are retained

Specifications

  • Brand: Circuit Werks
  • Product Type: Cat-Back Exhaust System
  • Exhaust Configuration: Cat-Back
  • Main Piping Diameter: 70mm / 2.75 inches
  • Rear Muffler Piping Diameter: Dual 50mm
  • Mid-Pipe Design: Straight-Through with Resonator
  • Resonator: Included
  • Y-Pipe: Included
  • Rear Mufflers: Included
  • O2 Sensor Bungs: Included
  • Exhaust Tips: Factory Lexus IS F Tips Retained
  • Gaskets: Included

Important Notes

  • Fits 2008–2014 Lexus IS F applications.
  • Includes the mid-pipe, Y-pipe, and rear muffler sections.
  • Designed to retain the factory exhaust tips located in the rear bumper.
  • Factory exhaust tips are not replaced by this system.
  • Main exhaust piping measures 70mm (approximately 2.75 inches).
  • Y-pipe transitions into dual 50mm rear muffler sections.
  • Features a straight-through configuration with an integrated resonator.
  • O2 sensor bungs are incorporated into the exhaust system.
  • Exhaust gaskets are included.
  • 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 can vary depending on other vehicle and exhaust modifications.
  • Professional installation is recommended.
  • Inspect and retighten exhaust hardware after initial heat cycles.
  • Exhaust modifications may be subject to federal, state, and local noise or emissions 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 complete cat-back system is designed specifically around the Lexus IS F and its naturally aspirated 5.0L V8.

With 70mm main piping, a resonated mid-pipe, Y-pipe, dual 50mm rear muffler sections, and compatibility with the factory bumper exhaust tips, the Circuit Werks Cat-Back Exhaust System provides a comprehensive upgrade for IS F owners looking for a sportier V8 exhaust character while maintaining the factory rear appearance.

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.