Our B58 catless stainless steel downpipes boast a 4.5 inch diameter from the turbo outlet.
These downpipes are ideal for that little bit more sound and performance from your B58.
- improves throttle response
- occasionally seen to improve fuel consumption (this is never guaranteed and is subject to how heavy your foot is)
- improves turbo and engine health
NB: Alternative 89mm downpipe can be chosen as well depending on preference of the purchaser. Both options fit perfectly on Gen1 and Gen2 B58s.











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