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SKU: HS15STIG3S
Invidia 2015-2021 Subaru WRX/STI 4Dr Q300 Twin Outlet Rolled Stainless Steel Quad Tip Cat-Back Exhaust
Upgrade your 2015-2021 Subaru WRX or STI 4-door sedan with the Invidia Q300 cat-back exhaust system HS15STIG3S. This full cat-back replaces the exhaust from the catalytic converter back for noticeable power increases and a refined aggressive sound. Mandrel-bent T304 stainless steel piping ensures smooth exhaust flow and durability on the street or track.
Key Features
- T304 Stainless Steel Build: Premium grade construction resists corrosion and withstands high heat for long-lasting performance.
- Mandrel Bent 3-inch Piping: Smooth bends minimize backpressure to boost horsepower torque and throttle response.
- Q300 Muffler Technology: Large canister design produces a deep throaty tone with minimal interior drone during cruising.
- Quad Rolled Stainless Tips: Twin outlet 4-inch diameter rolled-edge tips in polished stainless steel for precise fit and bold rear styling.
- Bolt-On Design: Direct replacement using factory mounting points for straightforward installation and reliable seal.
Product Notes
- Retains factory catalytic converter and O2 sensors for emissions compliance.
- Inspect clamps and hardware during seasonal maintenance to preserve performance.
- Packaged in heavy-duty box to protect components during transit.
Installation Notes
- Professional installation recommended.
- Bolt-on system requires basic tools no welding or cutting needed.
- Compatible with factory resonators and hangers reuse OEM gaskets where possible.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2016 | Subaru | WRX | Base |
| 2015-2016 | Subaru | WRX | Limited |
| 2015-2016 | Subaru | WRX | Premium |
| 2015-2016 | Subaru | WRX STI | Base |
| 2015 | Subaru | WRX STI | Launch Edition |
| 2015-2016 | Subaru | WRX STI | Limited |
| 2016 | Subaru | WRX STI | Series.HyperBlue |
| 2017-2021 | Subaru | WRX | All Sedans |
| 2017-2021 | Subaru | WRX STI | All Sedans |
Why Choose Invidia?
- 20+ years specializing in performance exhaust for Japanese cars.
- JASMA certified piping meets strict quality standards.
- Precision engineering from CAD design to dyno testing.
Frequently Asked Questions
-
Q: Will HS15STIG3S fit my 2018 Subaru WRX sedan?
A: Yes it bolts directly onto all 2015-2021 WRX and STI 4-door sedan models using factory hangers and mounts. -
Q: What material is used in the piping and tips?
A: Full T304 stainless steel piping and rolled quad tips provide heat resistance and a mirror-polished finish. -
Q: What is the warranty and install process?
A: Invidia provides a 1-year manufacturer warranty. Install takes 1-2 hours with basic lift and tools professional help advised for alignment.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Oversized reinforced box 48in L x 14in W x 14in H
- Weight: 41 lbs product 50 lbs shipping
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Invidia
At Invidia Exhaust, we are dedicated to creating exhaust systems that stand out for their exceptional craftsmanship, premium materials, and cutting-edge design. Our systems not only enhance vehicle performance but also elevate sound and aesthetics, catering to both racing enthusiasts and everyday drivers. Why Choose Invidia Exhaust? Performance Enhancement: Each exhaust system is meticulously engineered to reduce backpressure and boost engine output. Signature Sound: Experience an exhilarating exhaust note that sets you apart on the road. Precision Engineering: Designed using 3D scans of your vehicle's undercarriage for guaranteed precision fitment. Durable Materials: Made with Grade 304 stainless steel (or titanium for select systems) for exceptional durability and resistance to corrosion. Commitment to Quality With a commitment to ongoing technological innovation and stringent quality control, we ensure unparalleled performance, reliability, and durability in every product....
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