SR 300 Cell Sports Catalytic Converters Jaguar X100 XK8 XKR

SR 300 Cell Sports Catalytic Converters Jaguar X100 XK8 XKR

Swallows Racing 300 Cell Sports Cats

Unleash Maximum Power | Built for the Track

At Swallows Racing, we don’t just modify cars—we transform them. Our 300 Cell Sports Cat is precision-engineered to eliminate the bottlenecks in your exhaust system, delivering massive power gains and razor-sharp performance for Jaguar and Land Rover vehicles.

We design, build, and rigorously test every exhaust component in-house, combining cutting-edge technology with race-proven expertise. No compromises, no limits—just pure performance.

Our CAT cores use the best GESi G-sport advanced series which are EPA compliant and can handle up to 500bhp per cat, so no flow drop off until you run a 1000bhp engine.

If its not GESi or branded its sub standard..

Why Choose Our Sports Cat?

The stock catalytic converter chokes your engine’s potential with its restrictive 600-800 CPSI design. We replace that with our high-flow 300 CPSI substrate, boosting exhaust flow and unlocking serious horsepower while maintaining emissions compliance.

Here’s what makes ours the best in the business:

• Precision Engineering: High-grade 304 stainless steel construction, TIG-welded and purged for maximum flow.
• Coatings: The coating process includes proprietary coat technology which achieve stronger molecular bond to metallic surfaces.
• Canning: Double lock technology helps ensure the cat core and mantle are locked in place.
• Thermal resistance: Ideal for forced induction and capable of withstanding spikes of up to 875C.
• Track-Level Performance: Designed to handle the demands of high-horsepower applications.
• Direct Fit, No Hassle: Bolts in as a perfect replacement for your OE downpipe.
• GESI G-Sport Core: Industry-leading S-Wound metallic substrates ensure unbeatable durability and emissions control.

Performance Gains You Can Feel

With our Sports Cat installed, your exhaust flows freer, your engine breathes better, and your performance surges to the next level:

• More Power, Instantly: Get the most out of your engine with significantly reduced back pressure.
• Next-Level Emissions Control: Reduce carbon monoxide by up to 99%, nitrogen oxides by 98%, and hydrocarbons by 95%.
• Built Tough: Nickel-lined, furnace-brazed construction withstands extreme conditions without fail.

Built for Enthusiasts, by Enthusiasts

Using advanced 3D scanning technology, we guarantee a flawless fit every time. This isn’t just an upgrade—it’s the foundation for achieving top-tier performance. Pair it with one of our custom tuning packages for the ultimate setup.

Heads Up: Replacing your stock catalytic converter will require a remap to sync your ECU with the enhanced exhaust flow.

Upgrade Now—Feel the Difference

Don’t settle for less. Elevate your ride with the Swallows Racing 300 Cell Sports Cat and dominate the road or track with confidence.

Let’s Talk:

• Email Us: enquiries@swallowsracing.co.uk
• Call the Experts: Schedule your one-on-one consultation today.

Not sure about compatibility? We’ll help you confirm the perfect fit for your model.