HKS Muffler Gasket 75mm ID 83.8mm OD

SKU: 34001-AK025 | UPC: 4957266920329

HKS Muffler Gasket 75mm ID 83.8mm OD Subaru Impreza WRX STI 2004-2021

The HKS Muffler Gasket 75mm ID 83.8mm OD delivers a secure seal between exhaust pipe and muffler on Subaru Impreza WRX and STI models. Crafted from Hi-Silica fiber it handles extreme exhaust temperatures without compromising performance. This gasket ensures zero leaks for consistent power delivery and sound.

Key Features

• Exact Dimensions: 75mm inner diameter and 83.8mm outer diameter match 75mm exhaust pipes precisely to prevent gaps.
• Hi-Silica Fiber Material: Resists heat up to 1000°C and pressure for long-lasting durability in high-performance setups.
• Reusable Construction: Withstands multiple removal and reinstallations without losing sealing ability.
• Leak-Proof Performance: Creates airtight connection that maintains backpressure and boosts exhaust flow efficiency.
• HKS Engineering: Designed specifically for JDM exhaust systems with proven reliability on track and street.

Product Notes

• Confirm exhaust pipe outer diameter measures 75mm before ordering.
• Clean mating surfaces thoroughly for maximum adhesion during install.
• Arrives flat-packed in protective sleeve to avoid damage.

Installation Notes

• Professional installation recommended.
• Torque bolts to 20-25 Nm following HKS exhaust manual specs.
• Compatible with standard HKS muffler flanges and OEM-style hardware.

This Part Fits

Year	Make	Model	Submodel
2004-2021	Subaru	Impreza WRX STI	All
2002-2007	Subaru	Impreza WRX	All
2008-2014	Subaru	Impreza WRX	All
2005-2009	Subaru	Legacy GT	All
2004-2006	Subaru	Forester XT	All
2003-2009	Nissan	350Z	All
2008-2020	Nissan	370Z	All
2003-2006	Mitsubishi	Lancer Evolution VIII	All
2006-2007	Mitsubishi	Lancer Evolution IX	All

Why Choose HKS?

• Over 50 years developing exhaust components for JDM rally and circuit cars.
• Hi-Silica gaskets tested in demanding motorsport environments.
• Precision-cut for flange-to-pipe fit that supports full exhaust system integrity.

Frequently Asked Questions

• Q: Will this gasket fit my 2008 Subaru WRX STI with HKS muffler?
  A: Yes it matches 75mm pipe diameter on 2004-2021 Impreza WRX STI models equipped with compatible HKS or aftermarket mufflers.
• Q: What material is used and how heat resistant is it?
  A: Made from Hi-Silica fiber that endures continuous exposure to 1000°C exhaust gases without cracking or compressing.
• Q: Does HKS offer warranty on this gasket?
  A: Covered under HKS one-year limited warranty against manufacturing defects when installed correctly.

Shipping & Handling

• Method: USPS First Class or UPS Ground
• Availability: In stock – ships same or next business day
• Packaging: Protective sleeve inside 5 x 5 x 0.25 inch padded envelope
• Weight: 0.04 lbs