Quad Exhaust Tips Carbon for for BMW G20 G22 G29 G30 (2019-2025)

Precision-Engineered Quad Carbon Fiber Exhaust Tips for 2019-2025 BMW 2, 3, 4 Series, & Z4 (B48/B58 G-Chassis)

What It Does: Replaces the narrow factory-integrated exhaust finishers with staggered 4-inch quad carbon fiber tips designed to fill out high-flow aftermarket rear diffusers while improving thermal management at the exit point.

The BMW G-Chassis Exhaust Weakness

The OEM exhaust finishers on the G20, G22, and G42 platforms are often trapezoidal stamped steel units integrated into the bumper plastics rather than the actual exhaust piping. This design creates a significant aesthetic disconnect and traps radiant heat within the rear bumper cavity, which can lead to the warping of plastic trim during spirited driving or track sessions. Furthermore, the stock diameter is insufficient for owners upgrading to aggressive aftermarket diffusers, leaving an unsightly gap that disrupts the vehicle's rear aerodynamic profile and creates turbulent air pockets behind the rear fascia.

The Engineering Solution

These quad tips are engineered using T304 stainless steel, an industrial-grade alloy with high chromium and nickel content that provides superior resistance to oxidation and localized pitting from corrosive exhaust gases. Each tip is wrapped in 100% real wet carbon fiber, utilizing the material's natural low thermal conductivity to act as a heat shield for the surrounding diffuser. The double-walled construction provides an air-gap insulation layer, further reducing surface temperatures. Each unit is TIG welded for maximum structural integrity, ensuring the 2.5" ID inlet maintains a precise slip-over fit on factory-diameter piping. The staggered 4" OD outlets are specifically clocked to follow the contour of G-series performance diffusers, providing a flush, high-clearance fitment.

Technical Specifications

Compatibility

• BMW M240i / M340i / M440i (G42, G20, G22)
• BMW 330i / 430i (G20, G22)
• BMW Z4 M40i / sDrive30i (G29)
• BMW M550i (G30)
• Note: Fits Aftermarket Diffusers Only; modification to factory bumper may be required.

The BMW Standard

Designed for the precision requirements of European G-Chassis platforms, these tips offer a secure, clamp-on installation that resists the heavy thermal expansion cycles of turbocharged B48 and B58 engines. The TIG-welded T304 construction ensures a resonance-free finish that maintains its structural and aesthetic integrity without yellowing or carbon delamination under high EGTs.