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What HP can the M156 handle with forged internals
the GCC's most experienced professional mail-in ECU tuning service for exotic supercars
The reduced backpressure also lowers EGTs — critical for sustained performance in GCC heat where ambient temperatures regularly exceed 40°C
quality finish and durability
Stock Output: 462–730HP (GT base to GT Black Series)
BMW F85 X5M 2015+ Catless Downpipes | YPG Motorsport McLaren What HP can the M156BMW F85 X5M 2015+ Catless Downpipes catless high flow downpipes built to unlock the true potential of your BMW F85 X5M S63 4. 4L twin turbo V8 (2015+). Removing the restrictive factory catalytic converters and replacing the sound muting plumbing allows exhaust gases to exit the turbos far more freely, improving spool, response, and total power output. Manufactured in Germany from premium 304 stainless steel and fully mandrel bent with TIG welded
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