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  • GTR Exhaust System Frequently Asked Questions

GTR Exhaust System Frequently Asked Questions

Upgrading the exhaust improves horsepower, reduces turbo lag, enhances sound, and can reduce vehicle weight.
Yes, a quality cat-back exhaust system can improve airflow and slightly boost horsepower while improving exhaust sound.
A cat-back replaces piping from the catalytic converter back; a turbo-back replaces everything from the turbo outlet for maximum performance gains.
If you install a full turbo-back system or remove catalytic converters, a tune is highly recommended to prevent check engine lights and optimize performance.
It could affect warranty claims related to emissions or exhaust components. Always check with your dealer first.
Popular brands include Armytrix, AMS Performance, HKS, Akrapovic, and Boost Logic.
Volume increase depends on the system. Resonated systems are moderately louder, while straight-pipe setups are significantly louder and more aggressive.
Yes. Titanium systems are extremely lightweight, durable, and offer a unique exhaust note — but they are more expensive.
Drone is a low-frequency vibration or hum inside the cabin at certain RPMs. Choosing resonated or high-quality systems helps minimize drone.
Downpipes greatly improve turbo efficiency and horsepower gains, but often require tuning and may affect emissions compliance.