
Introduction
The Porsche GT3 (2004-2018) 997 & 991 JCR Titanium Centre Bypass (SILENCED) offers a modular construction, providing an impressive number of options when combined with factory components. From everyday driving to avid track day enthusiasts, Porsche has engineered an exhaust system to satisfy all customers. With material choices ranging from high grade T321 Stainless Steel to lightweight motorsport grade Titanium, our Exhaust line has the capability to meet all needs.
Light Weight
Due to the 100% Titanium construction the JCR Centre Bypass knocks off an impressive amount of weight from the rear end - Any weight reduction is good news however reducing weight rearward of the 911's rear axle can yield huge improvements in handling balance too. This truly is a win win modification.
Race Car Sound
The JCR Titanium exhaust line has been carefully developed to enhance the tone of the 3.8 and 4.0 flat 6 with the focus on creating the most aggressive results at full throttle while maintaining a reasonable level at partial throttle and cruising RPM's. The benefit of the 100% Titanium construction is the natural resonance which occurs whilst using this material, a hard edged tone reminiscent of the latest mid-engined 991 RSR race cars.
Power Increase
Every component of the JCR Titanium Exhaust line is gurenteed to improve HP & TQ with varying results dependant on the combination of parts. Our most extreme free flowing system will see gains in the mid 30HP along with great improvements in engine response and mid range torque.
Key Features
- 100% Titanium Construction
- -4.26kg (9.39lbs) Weight Reduction vs OEM
- Improved Sound Quality
- HP & TQ Increase
- Titanium Fixings Included
Applications
- 997.1 GT3 / RS
- 997.2 GT3 / RS / 4.0
- 991.1 GT3 / R / RS
- 991.2 GT3 / Touring / RS
Lead Times
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JCR products are produced in batches, we aim to carry stock of all products however in the event that parts aren't in stock please allow approximately 30 - 60 business days after the point of ordering before your parts ship. For lead time estimates prior to ordering please contact us via the contact page

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