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Business Hours
| Monday | 08:00 AM – 05:00 PM |
| Tuesday | 08:00 AM – 05:00 PM |
| Wednesday | 08:00 AM – 05:00 PM |
| Thursday | 08:00 AM – 05:00 PM |
| Friday | 08:00 AM – 05:00 PM |
| Saturday | 08:00 AM – 01:00 PM |
| Sunday | Closed |
Frequently Asked Questions
What is a camshaft and what does it do?
A camshaft is a rotating shaft with lobes (cams) that control the opening and closing of the engine’s intake and exhaust valves. It plays a critical role in determining engine performance characteristics like power output, torque, and fuel efficiency.
Will a performance camshaft make my engine idle rough?
It depends on the cam profile. Mild performance cams may have little effect on idle quality, while more aggressive profiles can cause a lopey or rough idle. This is due to increased valve overlap, which affects low-speed running characteristics.
What is a rev kit?
A rev kit (or valve spring kit) consists of upgraded valve springs, retainers, and sometimes other components that allow the engine to safely rev higher. They prevent valve float at high RPM, which can cause catastrophic engine damage.
Do I need a rev kit if I upgrade my camshaft?
In most cases, yes. Performance camshafts typically require higher valve spring pressures to maintain proper valve control at increased RPM. Running a performance cam without upgraded springs can lead to valve float and engine damage.
How does a camshaft upgrade affect my engine’s performance?
A performance camshaft can increase power and torque by optimizing valve timing and lift. The exact gains depend on the cam profile chosen, supporting modifications, and how well the cam matches your engine’s intended use (street, track, etc.).
What valve spring pressure do I need?
The required valve spring pressure depends on your camshaft profile, engine RPM range, and valve weight. Higher-lift cams and higher-revving engines generally need stronger springs. Contact us for specific recommendations for your application.
Do you ship internationally?
Yes! STK Performance ships worldwide. We have offices in South Africa, the United Kingdom, and Mexico City to serve our global customer base efficiently.
What payment methods do you accept?
We accept payments via Peach Payments, which supports credit cards, debit cards, and various other payment methods. All transactions are processed securely.
How long does delivery take?
Domestic deliveries within South Africa are handled by The Courier Guy and typically take 2-5 business days. International shipping times vary by destination. Contact us for specific delivery estimates.
Can I return a product?
Please refer to our Terms and Conditions page for our full returns and refunds policy. Generally, unused products in original packaging can be returned within a specified period.