BMW S68 4.4TT IHC CATLESS EXHAUST DOWNPIPE (G90 M5)

Sharpen the exhaust performance and acoustic profile of your vehicle with this IHC catless stainless steel free-flow turbo downpipe exhaust system, precision-engineered exclusively for the 2025+ BMW M5 G90 platform equipped with the S68 4.4L twin-turbo V8 engine. Replacing the highly restrictive factory catalytic converters and header pipe downpipes, this straight catless performance setup drastically reduces exhaust backpressure, unleashing rapid turbo spool, elevated horsepower, and a deep, aggressive V8 exhaust roar.

Manufactured from premium-grade TIG-welded SS304 stainless steel, this straight free-flow downpipe system features smooth mandrel bends and precision CNC flanges designed to withstand extreme thermal stress and high boost pressures. Engineered for a direct bolt-on fitment, it integrates seamlessly with OEM and aftermarket exhaust components while significantly optimizing underbody exhaust flow and heat dissipation for maximum track-focused performance.

Q: Is this product real carbon fiber?

A: Yes, all parts are made from high-quality, genuine carbon fiber.

Q: How long does shipping take?

A: Standard shipping is 10–20 business days, with express options available.

Q: Will I get tracking?

A: Yes, tracking details are provided once your order is shipped.

Q: Do you accept returns?

A: We accept returns for unused, undamaged items within 7 days of delivery.

Orders are processed within 7–10 business days.

Standard shipping:10–20 business days.

Express shipping (if available):5–10 business days.

Tracking info provided once shipped.