2019 540i build

k2fye · 06-18-2025, 01:45 PM

Got a 2019 540 (gen 1) with 60k miles in August of last year. Been ARM 6” downpipe and MHD stage 2 since then. Just got coolant system redone and installed the TU pump. Moving to stage 2 plus, stage 2 has reliable for 12k miles. This shits been ripping. ARM downpipe has a super deep tone🤤

Keyser Soze 407 · 06-20-2025, 05:01 AM

Nice. Yeah I’ve got a 2017 with MHD stage 2 a VRSF catless downpipe, MAD intake and inlet. New plugs / Dinan coil packs and a XHP stage 3 transmission tune. The cars so incredibly fast. I haven’t found a good road around here to do draggy runs but I can let off on the gas before the end and still hit low 12s on runflats I’m thinking mid to high 11s with better grip. I’ve ran a 112mph trap speed in the 1/4 but the traction was so bad from the runflats and not being able to put the power to the ground I barely caught traction until 60mph because too much wheel spin. It’s so fast. I want to do the TU HPFP pump but need to check if I need a new fuel rail or not, also want to install a catch can and replace my Guibo flex disc because it’s cracked. I had my water pump and radiator replaced, did you get any upgrades or just OEM coolant replacements? If so on the upgrades which ones did you do?

06-18-2025, 01:45 PM	#1
k2fye Registered 0 Rep 1 Posts Drives: 540i Join Date: Jun 2025 Location: Florida iTrader: (0)	2019 540i build Got a 2019 540 (gen 1) with 60k miles in August of last year. Been ARM 6” downpipe and MHD stage 2 since then. Just got coolant system redone and installed the TU pump. Moving to stage 2 plus, stage 2 has reliable for 12k miles. This shits been ripping. ARM downpipe has a super deep tone🤤
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06-20-2025, 05:01 AM	#2
Keyser Soze 407 Registered 0 Rep 2 Posts Drives: BMW 540i Join Date: Jun 2025 Location: Orlando Florida USA iTrader: (0)	Nice. Yeah I’ve got a 2017 with MHD stage 2 a VRSF catless downpipe, MAD intake and inlet. New plugs / Dinan coil packs and a XHP stage 3 transmission tune. The cars so incredibly fast. I haven’t found a good road around here to do draggy runs but I can let off on the gas before the end and still hit low 12s on runflats I’m thinking mid to high 11s with better grip. I’ve ran a 112mph trap speed in the 1/4 but the traction was so bad from the runflats and not being able to put the power to the ground I barely caught traction until 60mph because too much wheel spin. It’s so fast. I want to do the TU HPFP pump but need to check if I need a new fuel rail or not, also want to install a catch can and replace my Guibo flex disc because it’s cracked. I had my water pump and radiator replaced, did you get any upgrades or just OEM coolant replacements? If so on the upgrades which ones did you do?
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