Find more detailed answers to these questions at this link: CS Racing FAQ.
Exhaust Performance & Installation
- Do I need a remap, reflash, or tuner?Most bikes don’t require tuning, but it can improve performance. Some European models (e.g., BMW S1000RR, Ducati V4) benefit from it. Check product descriptions for details.
- How is HP gain measured?We use a dyno under controlled conditions. Tests are done without ECU tuning using gasoline with 25-27% ethanol. Lower ethanol fuel may increase HP.
- Will I get the same HP gains?Likely better. Brazil’s fuel has 25-27% ethanol, which reduces power compared to lower-ethanol gasoline.
- Why do I hear pops, bangs, and see flames?Removing the catalytic converter allows unburnt fuel to ignite. Causes include reduced backpressure, air-fuel ratio changes, and the AIS system.
- How to reduce it?Tune the ECUDisable AIS (Air Injection System)Check for exhaust leaksUse a DB Killer or Baffle
- Will the exhaust trigger a servo motor error?Some European bikes need a remap or a servo eliminator (e.g., Healtech). Most Japanese bikes aren’t affected.
- Is a dB Killer included?Yes, for all compatible models.
- Is the dB Killer removable?Yes, using an Allen key.
- What is the dB level?Slip-ons (with cat): ~95-98 dBFull systems (without cat): ~100-102 dBDucati engines: Up to 108 dBdB Killer reduces noise by ~2 dB
- Does the exhaust include an O2 sensor bung?Yes, for stock sensors. If your bike lacks an O2 sensor, seal the hole with an oil pan plug.
- Is it Euro 4/5 compliant?No, our sport exhausts are not street-certified in Europe.
Ordering & Shipping
- How long is delivery?Orders take 30-45 days. Once ready, DHL Express delivers in 5-12 days.
- When will my tracking number be available?It’s generated when the label is created but becomes trackable after reaching DHL’s main hub.
- Why isn’t my tracking updating?Updates appear once DHL processes the package, usually within a few days.
- What does “Delivery Exception” mean?Your order is either in customs clearance or waiting for the next available flight.
- Can I pay extra for faster shipping?No, orders are processed in the order received.
- Is buying on eBay faster or cheaper?No, stock and prices are the same. We only charge sales tax for Florida orders, while eBay applies it nationwide.
Payments, Taxes & Returns
- What payment methods are accepted?Payment options vary by country. Installments may be available at checkout.
- Do I have to pay taxes?Customs duties and taxes vary by country and are the buyer’s responsibility.
- What is your return policy?30-day returns for unused items in original packaging. Details: Return Policy
- Do you offer Military/First Responder discounts?No, we no longer provide exclusive discounts.
Company Information
- Where are you located?Sales & Customer Service: Florida, USAFactory: Brazil (where most orders ship from)
- How do I place an order?Orders must be placed directly on our website. We ship worldwide.