ISR Performance

ISR Performance GT Dual Exhaust Catback — Fits 1998-2005 Lexus GS300

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SKU: ISRIS-GT2-GS3002G
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$720.99 $880.00
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches
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Product Details

Product Description
Part Numbers
Sizing & Fit

About ISR Performance

ISR Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ISR Performance lineup with fast shipping and expert fitment support — order with confidence.

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ISR Performance GT Dual Exhaust Catback for 1998-2005 Lexus GS300

Elevate your driving experience with the ISR Performance GT Dual Exhaust Catback system, specifically designed for the 1998-2005 Lexus GS300 (JZS161). This premium catback exhaust is engineered to deliver a perfect balance of aggressive tone and refined performance, transforming your luxury sedan into a true performance machine.

Key Features:

  • Direct Fit Design: Engineered for a seamless installation on your 1998-2005 Lexus GS300, minimizing hassle and maximizing your time on the road.
  • Aggressive Sound: The GT muffler design provides a deep, resonant exhaust note that announces your presence without being overly intrusive.
  • Performance Gains: Optimized piping diameter and muffler flow help to improve exhaust gas scavenging, potentially leading to noticeable gains in horsepower and torque.
  • Durable Construction: Crafted from high-quality materials to withstand the rigors of daily driving and spirited performance use.
  • Dual Tip Styling: Features a stylish dual exhaust tip configuration that enhances the rear aesthetics of your GS300.

The ISR Performance GT Dual Exhaust Catback is the ideal upgrade for GS300 owners seeking to unlock their vehicle's true potential. Experience the difference in sound, performance, and style. Get yours today at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About ISR Performance

ISR Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ISR Performance lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

ISR Performance GT Dual Exhaust Catback for 1998-2005 Lexus GS300

Elevate your driving experience with the ISR Performance GT Dual Exhaust Catback system, specifically designed for the 1998-2005 Lexus GS300 (JZS161). This premium catback exhaust is engineered to deliver a perfect balance of aggressive tone and refined performance, transforming your luxury sedan into a true performance machine.

Key Features:

  • Direct Fit Design: Engineered for a seamless installation on your 1998-2005 Lexus GS300, minimizing hassle and maximizing your time on the road.
  • Aggressive Sound: The GT muffler design provides a deep, resonant exhaust note that announces your presence without being overly intrusive.
  • Performance Gains: Optimized piping diameter and muffler flow help to improve exhaust gas scavenging, potentially leading to noticeable gains in horsepower and torque.
  • Durable Construction: Crafted from high-quality materials to withstand the rigors of daily driving and spirited performance use.
  • Dual Tip Styling: Features a stylish dual exhaust tip configuration that enhances the rear aesthetics of your GS300.

The ISR Performance GT Dual Exhaust Catback is the ideal upgrade for GS300 owners seeking to unlock their vehicle's true potential. Experience the difference in sound, performance, and style. Get yours today at GGCRACING.

Product Details

Product Description

About ISR Performance

ISR Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ISR Performance lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

ISR Performance GT Dual Exhaust Catback for 1998-2005 Lexus GS300

Elevate your driving experience with the ISR Performance GT Dual Exhaust Catback system, specifically designed for the 1998-2005 Lexus GS300 (JZS161). This premium catback exhaust is engineered to deliver a perfect balance of aggressive tone and refined performance, transforming your luxury sedan into a true performance machine.

Key Features:

  • Direct Fit Design: Engineered for a seamless installation on your 1998-2005 Lexus GS300, minimizing hassle and maximizing your time on the road.
  • Aggressive Sound: The GT muffler design provides a deep, resonant exhaust note that announces your presence without being overly intrusive.
  • Performance Gains: Optimized piping diameter and muffler flow help to improve exhaust gas scavenging, potentially leading to noticeable gains in horsepower and torque.
  • Durable Construction: Crafted from high-quality materials to withstand the rigors of daily driving and spirited performance use.
  • Dual Tip Styling: Features a stylish dual exhaust tip configuration that enhances the rear aesthetics of your GS300.

The ISR Performance GT Dual Exhaust Catback is the ideal upgrade for GS300 owners seeking to unlock their vehicle's true potential. Experience the difference in sound, performance, and style. Get yours today at GGCRACING.

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