F10 M5/M6 S63 Catless CenCal Downpipes
BMW S63 Catless Downpipes
Unlock the full potential of your BMW S63-powered M vehicle with the CenCal Motorsport S63 Catless Downpipes. The factory catalytic converters create significant exhaust restriction, limiting turbo response and overall power. Our catless downpipes are engineered to eliminate this backpressure, allowing your turbos to spool faster, build boost more efficiently, and deliver maximum performance.
On a properly tuned BMW S63 with stock turbos, gains of up to 30 horsepower can be achieved, with even greater results on vehicles equipped with upgraded turbochargers. In addition to performance gains, these downpipes transform the exhaust note, producing a louder, more aggressive sound that matches the performance of your M car—without unwanted drone.
Precision-engineered for perfect fitment, these downpipes feature smooth mandrel bends to maximize exhaust flow and are fully compatible with both left-hand and right-hand drive vehicles.
Product Features
- Eliminates restrictive factory catalytic converters
- Increases turbo spool speed and overall engine performance
- Up to 30HP gains on stock turbos, more with upgraded turbos
- Smooth mandrel bends for maximum airflow and reduced turbulence
- Aggressive exhaust tone without drone
- Compatible with left-hand drive and right-hand drive vehicles
- Precision, spot-on fitment
- Lifetime warranty against defects and fitment issues
Every CenCal order is eligible for Package Protection, powered by Redo. It is selected by default at checkout and covers your shipment against loss, theft, and damage in transit.
What it covers:
- Lost packages confirmed by the carrier
- Stolen packages marked as delivered but not received
- Items that arrive broken or damaged in transit
Resolution: Approved claims receive a full replacement at no cost. For damage claims, you keep the damaged item and receive a brand new replacement.
Claims must be filed within 7 days of the delivery date. See the full policy or email support@cencalmotorsport.com if you need help.
If protection is removed at checkout, CenCal cannot file a claim or accept responsibility for shipping issues.
Shop Install Available
Bring your car to our Oceanside shop. We install everything we sell.
Fitment Guaranteed
Every part is confirmed to fit your chassis before it ships.
Package Protection
Something go wrong? We'll send out a free replacement. No questions asked.
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