ISR Performance ST Exhaust - 09-13 Hyundai Genesis Coupe 2.0T - IS-ST-GEN20 - ISRIS-ST-GEN20

The ISR Performance ST Series Cat-Back Exhaust for the 2009–2013 Hyundai Genesis Coupe 2.0T (part number IS-ST-GEN20) is purpose-built for Genesis Coupe owners who want a meaningful performance upgrade without sacrificing daily drivability. Constructed from stainless steel and engineered as a direct bolt-on replacement for the factory exhaust, this system is designed to deliver a deep, aggressive exhaust note that remains street-friendly — no harsh rasp, just a refined growl that fits the character of the turbocharged Genesis Coupe platform.

Key Features & Benefits

• Stainless Steel Construction: The entire cat-back system is built from stainless steel, offering long-term resistance to corrosion and heat — important for a car that sees spirited driving year-round.
• Deep, Aggressive Tone Without Rasp: ISR specifically engineered the ST Series to produce a mellow but authoritative exhaust note. Owners get the sound upgrade they want for street use without the droning or high-pitched rasp that plagues lesser aftermarket systems.
• Considerable Power Gain: As a performance cat-back replacement, the ST Series is designed to reduce exhaust backpressure compared to the restrictive factory system, contributing to improved power output on the turbocharged 2.0T engine.
• Bolt-On Installation: Designed as a direct OEM replacement, the system is engineered to use the factory mounting points, making installation straightforward — no custom fabrication required. One verified owner noted the exhaust is easy to install.
• Burnt Dual Staggered Tips: The muffler section exits through burnt dual staggered tips, adding a visually striking finish that complements the sporty profile of the Genesis Coupe.
• Resonated Front Pipe: The included resonated front pipe helps tune the exhaust tone for street manners, reducing unwanted frequencies while preserving the performance character of the system.
• Complete Kit Included: Everything needed for the installation ships in the box — no sourcing individual gaskets or hardware separately.

Specifications

• Brand: ISR Performance
• Part Number: IS-ST-GEN20
• System Type: Cat-Back Exhaust
• Material: Stainless Steel
• Tip Style: Burnt Dual Staggered
• Front Pipe: Resonated
• Condition: New

What's in the Box

• 1x Resonated front pipe
• 1x Mid pipe
• 1x Muffler section with Burnt Dual Staggered Tips
• 3x 2-bolt 3" exhaust gaskets
• 6x Bolts
• 6x Nuts

Fitment

The ISR Performance ST Series Exhaust (IS-ST-GEN20) is designed to fit the 2009–2013 Hyundai Genesis Coupe 2.0T. If you own the Genesis Coupe equipped with the turbocharged four-cylinder engine, this is the correct application. If you have the 3.8L V6 Genesis Coupe, ISR offers a separate ST Series exhaust (IS-ST-GEN38) designed specifically for that engine — make sure to select the correct variant for your build. Not sure which engine you have? Contact our fitment team before ordering.

Why Buy from ThreePiece.us

• Free Shipping on Every Order: The ISR Performance ST Exhaust ships free to your door within the continental US — no minimum order required.
• Affirm Financing Available: Spread the cost over time with flexible Affirm financing, so you can get the exhaust upgrade you want without waiting.
• Expert Fitment Support: Our team has served over 10,000 customers and specializes in matching the right parts to the right car. If you have any questions about whether this exhaust fits your specific Genesis Coupe, reach out before you order — we're here to help.
• Dedicated Performance Parts Team: ThreePiece.us carries ISR Performance exhaust systems because we stand behind brands that are engineered for real-world performance. Call us at 813-535-5801 or email us for personalized support.

Frequently Asked Questions

Q: Will this exhaust fit my 2011 Hyundai Genesis Coupe 2.0T?
A: Yes. The IS-ST-GEN20 is designed for the 2009–2013 Hyundai Genesis Coupe equipped with the 2.0T turbocharged four-cylinder engine. All model years within that range are covered by this fitment.

Q: Does this fit the Genesis Coupe 3.8 V6?
A: No — this part (IS-ST-GEN20) is specific to the 2.0T engine. ISR Performance makes a separate ST Series exhaust for the Genesis Coupe 3.8 V6. If you have the V6, contact us and we'll point you to the correct part.

Q: What's included — do I need to buy gaskets or hardware separately?
A: The kit ships complete with a resonated front pipe, mid pipe, muffler section with burnt dual staggered tips, three 2-bolt 3" exhaust gaskets, six bolts, and six nuts. You should have everything needed for a standard installation straight out of the box.

Q: Is this exhaust too loud for daily street driving?
A: ISR designed the ST Series specifically to be a street-friendly system. The resonated front pipe helps tame the tone, and according to ISR's own description, the system produces a deep, aggressive sound that is tame enough for the street — with no rasp. A verified owner described it as having a deep tone that is "not over the top," confirming it's well-suited for daily driving.

Note: This product is legal only for use in competition vehicles which may never be registered, licensed, or used on public streets or highways, and for other exempted vehicles, per manufacturer documentation. Please verify local regulations before purchasing.