HKS 98-05 Lexus GS300 Hi-Power Exhaust (Dual Rear Sections) - Black Ops Auto Works
Click to zoom in

HKS 98-05 Lexus GS300 Hi-Power Exhaust (Dual Rear Sections)

HKS
HKS3203-EX003
4957266923207
Catback
20+ Units In Stock - Ships Next Business Day
$ 800.00
FREE Ground Shipping!
$ 800.00

SKU: 3203-EX003 | UPC: 4957266923207

HKS 98-05 Lexus GS300 Hi-Power Exhaust (Dual Rear Sections)

Transform the exhaust note and flow on your 1998-2005 Lexus GS300 with the HKS Hi-Power Dual Rear Exhaust system. This bolt-on rear section replacement features SUS304 stainless steel piping and mufflers for direct fitment on JZS160 chassis models. Expect noticeable gains in horsepower torque and throttle response alongside a refined aggressive sound.

Key Features

  • SUS304 Stainless Steel: Full construction resists corrosion ensures longevity and maintains mirror polish finish over time
  • Dual Rear Design: Twin 50.8mm piping into 80mm main reduces backpressure for smoother high-RPM flow
  • Jet-Spray Tips: 100mm diameter polished stainless outlets angled for style and optimized exhaust dispersion
  • Lightweight Build: 11.5kg system cuts 4.5kg from stock 16kg setup improving handling and acceleration
  • Hi-Power SPEC-L: Tuned internal baffling produces deep muscular tone without drone on street drives

Product Notes

  • Direct replacement for factory rear mufflers and sections no cutting or fabrication needed
  • Verify local sound regulations before install as tone exceeds stock levels
  • Inspect hangers and gaskets during install for secure mounting

Installation Notes

  • Professional installation recommended.
  • Bolt-on fit uses factory mounts and clamps throughout
  • OEM hardware compatible includes new gaskets for leak-free seal

This Part Fits

Year Make Model Submodel
1998-2005 Lexus GS300 All

Why Choose HKS?

  • Decades of motorsport engineering refine every component for real-world gains
  • JDM factory quality with dyno-proven flow and sound characteristics
  • Precision mandrel-bent pipes deliver consistent performance across rev range

Frequently Asked Questions

  • Q: Does this fit all 1998-2005 Lexus GS300 models?
    A: Yes it bolts directly to JZS160 chassis GS300 with 1G-FE engine no modifications required
  • Q: What material is used in construction?
    A: Entire system uses SUS304 stainless steel for rust resistance and heat tolerance up to 800 degrees C
  • Q: What warranty coverage applies?
    A: HKS provides 1-year limited warranty against manufacturing defects with proper installation

Shipping & Handling

  • Method: Ground shipping via UPS or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: Securely boxed with protective foam inserts
  • Weight: 25.4 lbs (11.5 kg)

Request For Information

Have questions about ? Fill out the form below and we'll get back to you by the next business day.
Catback

Catback

Shop catback exhaust systems at Black Ops Auto Works for cat-back exhaust kits, performance exhaust systems, stainless steel exhausts, titanium exhausts, dual rear exit exhausts, track exhausts, touring exhausts, axle-back exhausts, and street performance exhaust upgrades. This collection is built for drivers who want deeper sound, improved exhaust flow, better throttle response, aggressive rear-end styling, and vehicle-specific bolt-on fitment. Use this Catback collection to choose the right exhaust system by vehicle platform, brand, material, sound level, tip finish, and driving goal. A catback exhaust can help improve sound, reduce exhaust restriction, support performance upgrades, and give your car, truck, SUV, Jeep, or performance build a cleaner, more aggressive look. Shop Catback Exhaust Systems by Brand Black Ops Auto Works carries catback exhaust systems from trusted performance brands including Borla, CORSA Performance, MagnaFlow, MBRP, AWE Tuning, Invidia, Solo Performanc...

View Catback Products
Exhaust Systems

Exhaust Systems

Black Ops Auto Works carries one of the largest selections of performance exhaust systems available online, with 7,700+ products covering cat-back exhausts, axle-back exhausts, turbo-back systems, downpipes, headers, mid-pipes, X-pipes, H-pipes, mufflers, resonators, catalytic converters, exhaust tips, and every component in between. Whether you're building a street car, a daily driver, a diesel truck, or a track build, the right exhaust upgrade is here. Shop by Exhaust System Type Cat-Back Exhaust Systems: The most popular performance exhaust upgrade. Replaces everything from the catalytic converter back for improved sound, better flow, and premium tip styling. Available in single exit, dual exit, and quad exit configurations. Axle-Back Exhaust Systems: A simpler bolt-on that replaces the rear section from the axle back. Best for drivers who want an improved exhaust note and cleaner tip appearance without a full system swap. Headers and Manifolds: Long tube headers and shorty h...

View Exhaust Systems Products
HKS

HKS

HKS is a Japanese manufacturer of premium performance parts founded in 1973 that has been at the forefront of turbocharged engine development, producing turbochargers, exhaust systems, engine management, intercoolers, and supporting performance components for some of the most iconic Japanese sports cars ever built. The brand's GT and GTIII turbocharger series, Super Sequential Blow Off Valves, and Racing Suction intake kits are recognized globally as benchmark-quality products that combine Japanese manufacturing precision with decades of motorsport development experience. HKS products are particularly well-known in the Toyota Supra, Mitsubishi Evo, Subaru STI, Nissan GT-R, and Honda NSX communities, where the brand's heritage in building the world's fastest versions of these cars has created a loyal following among enthusiasts who want the best available components. From a simple racing suction kit to a complete GT turbo with intercooler and ECU tune, HKS provides an end-to-end perf...

View HKS Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×