Bmw 550i 550xi 650i 650Xi 750i Alpina B6 X5 X6 N63 4.4L

Key Benefits:

• Improved Turbo Efficiency: Reduces exhaust back pressure and lowers temperatures, easing stress on the turbocharger.
• Enhanced Performance: Higher cylinder charge delivers peak power, while the turbo’s quicker spool offers an immediate throttle response.
• Maximized Gas Flow: Precision mandrel-bending ensures optimal gas flow and the largest possible internal diameter, boosting performance without compromising mid-range torque.
• Significant Weight Reduction:Compared to factory catalytic converters, these downpipes shed weight for better handling and efficiency.
• Superior Finish: Brushed heat shielded stainless steel finish for a sleek looks and protection against heat soak.

For those looking to amplify the sound a little, removing just secondary downpipes adds a thrilling exhaust note without triggering an EML light (this would be the lower section only). And for full power gains as well as sound, we recommend a tune with both primary and secondary downpipes removed.

Unsure about Compatibility? Just provide your VIN or REG NO, and we’ll confirm fitment for your vehicle! For the most accurate match, check the part number on your existing unit where possible.

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