KAWASAKI NINJA ZX-4R - RR S1 titanium exhaust

Engineered and designed to let you feel every hi-rev note of the Ninja ZX-4R - RR, the S1 racing muffler is the perfect combination of lightness, design and SC-Project signature sound.

The conical body shape enriched by SC-Project lasered logo and the elegant carbon fibre end cap, make the S1 silencer a benchmark in terms of aesthetic and sound emotion. The absolute top quality finish of the outer sleeve in ultra-light titanium, the TIG weldings handcrafted in protected environment, the accuracy of the carbon fibre end cap shape, are a pure joy for the look of the little Ninja.

For the Kawasaki ZX-4R - RR, the S1 racing muffler allows an outstanding weight reduction of over -65% (-2.9 kg if compared to the OEM exhaust) and to get an incredible maximum gain of 5.0 hp at 13000 rpm and 3.0 Nm of torque at 13000 rpm, together with a stable improvement of power and torque delivery in the low and mid range.

Everything has been developed to offer a superbe sound experience and for this racing application the muffler comes with a removable dB-killer: the strong and deep sound of the S1 exhaust will be totally unforgettable.

The installation is completely plug and play; ECU remapping is not necessary.

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Order Processing Time:

Orders are usually processed within 24-48 hours after the order has been placed.
Custom or special order items may take longer to process, typically 3-5 business days.

Shipping Methods:

Standard Shipping (3-7 business days)
Expedited Shipping (2-3 business days)
Express Shipping (1-2 business days)

Packaging:

Rest assured that all items will be securely and safely packaged to prevent any damage during transit. Fragile or high-value parts will be packaged with additional protective materials, such as bubble wrap or foam padding.

Shipping Rates:

Shipping rates vary based on the size, weight, and destination of the package. You can view the estimated shipping costs for your order during the checkout process before placing your order.

Order Tracking:

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International Shipping:

We ship worldwide! Please note that international shipping rates and delivery times may vary based on destination. Customers are responsible for any customs fees, import taxes, or additional charges that may apply.