Click to zoom in
SKU: 3203-EX023 | UPC: 4957266923306
HKS Hi-Power Universal Muffler 2.5 Inch Inlet / 3.7 Inch Outlet
The HKS Hi-Power Universal Muffler 3203-EX023 features a 2.5-inch inlet and 3.7-inch outlet for custom exhaust applications on JDM imports and performance vehicles. This straight-through design flows massive exhaust volumes for power gains while producing an aggressive yet street-friendly sound. Built in Japan with premium materials it withstands daily driving and track abuse.
Key Features
- Straight-Through Design: Minimizes restrictions with fewest bends to unleash maximum exhaust flow and engine power
- Advantex Glass Wool Packing: Owens Corning material reduces backpressure enhances deep tone and cuts weight for better performance
- Stainless Steel Construction: Durable SUS304 muffler body paired with SUH409 coated piping resists rust and elements
- Aggressive JDM Sound: Delivers natural engine note refined for street use yet race-ready volume
- Made in Japan: Precision engineering from HKS ensures reliability across street cars and race builds
Product Notes
- Universal design suits most vehicles with 2.5-inch exhaust piping
- Single 94mm outlet with 102mm rolled edge tip
- Muffler dimensions 480mm length x 240mm width x 240mm height
Installation Notes
- Professional installation recommended.
- Requires welding or V-band clamps for 60mm inlet and 94mm outlet connections
- Compatible with standard exhaust hangers and hardware
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | Various JDM/Imports | Custom Exhaust Builds | 2.5in Inlet Piping |
Why Choose HKS?
- Decades of JDM leadership with proven Hi-Power systems on street and track cars
- High-flow engineering trusted by racers for unmatched exhaust efficiency
- Japanese craftsmanship using exclusive materials like Advantex for longevity
Frequently Asked Questions
-
Q: Will this muffler fit my specific vehicle?
A: Universal fit for cars with 2.5-inch inlet exhaust systems custom fabrication or clamps needed for inlet/outlet -
Q: What materials are used in construction?
A: SUS304 stainless steel muffler Advantex glass wool packing by Owens Corning and SUH409 protective coating -
Q: What warranty coverage applies?
A: HKS provides manufacturer defect warranty contact seller for policy details and registration
Shipping & Handling
- Method: Ground shipping
- Availability: In stock - ships same or next business day
- Packaging: Sturdy oversized box protects during transit
- Weight: 6.3 kg (13.9 lbs)
Catback
A catback exhaust system replaces everything from the catalytic converter back, covering the mid pipe, muffler, and tailpipe section in one bolt on upgrade. This collection covers catback systems for trucks, Jeeps, muscle cars, imports, and performance SUVs, giving you a straightforward way to improve sound, exhaust flow, and rear end styling without touching the factory catalytic converters or front pipe. Catback systems are available in stainless steel and titanium construction, with dual rear exit, single exit, and quad tip configurations, and a range of sound levels from mild touring tone to aggressive track character. Whether you want a deeper daily driver sound or a full track ready exhaust note, you will find a matched system for your platform here. What This Category Covers This collection includes complete catback exhaust systems, cat-back kits, dual rear exit systems, axle back adjacent catback upgrades, stainless steel and titanium exhaust systems, and street, tourin...
View Catback Products
Exhaust Systems
Performance exhaust systems for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop cat-back systems, axle-back systems, turbo-back systems, headers, downpipes, mid-pipes, mufflers, resonators, catalytic converters, exhaust tips, exhaust valve controllers, oxygen sensors, exhaust brakes, and motorcycle and powersports exhausts for Mustang, Camaro, Challenger, Corvette, Silverado, and Super Duty platforms. Every product is filterable by exhaust position, material, pipe diameter, and vehicle year, make, model, and trim so the correct fitment ships the first time. Black Ops Auto Works carries 7,441 exhaust SKUs across every position of the exhaust system. What This Category Covers Exhaust upgrades change sound, appearance, and in some cases power. Exhaust fitment depends on engine, drivetrain, and factory exit position, so confirm the exact platform before ordering any exhaust component. Exhaust Position Cat-back, axle-back, turbo-back, and header-back systems e...
View Exhaust Systems Products
HKS
HKS Japanese performance parts for Toyota Supra, Nissan Skyline GT-R, Nissan Silvia and 240SX, Subaru WRX and STI, and other JDM platforms are stocked at Black Ops Auto Works. Shop turbo kits, cat back exhaust systems, coilovers, blow off valves, and engine management upgrades for RB26DETT, SR20DET, 2JZ-GTE, and EJ series turbocharged engines. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 607 HKS SKUs across forced induction, exhaust, suspension, and engine management categories. What This Collection Covers HKS has built its reputation on Japanese sport compact and sports car performance since the late 1970s, developing turbo kits, exhaust systems, and suspension for platforms including the Toyota Supra 2JZ-GTE, Nissan Skyline GT-R RB26DETT, Nissan Silvia and 240SX SR20DET, and Subaru WRX and STI EJ and FA series engines. This collection brings together fitment verified HKS pa...
View HKS Products