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      05-15-2019, 03:52 PM   #1
acl26
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Drives: 2018 BMW M2
Join Date: Jul 2018
Location: North America

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Blown Engine/Piston (M2 modded with catted DP & BM3 tune) - Suggestions ?

Hi all,

Went on a track day car and went into limp mode twice with no engine light or warnings and at last session car suddenly starting blowing white smoke from exhaust.

Went back in to check and engine oil had splattered all over the engine bay.

Initially thought it was an issue with the turbo as it couldn't spook properly.

Painfully towed it back to my mechanic.

After checking on the car with my mechanic it seems one piston is broken (missing a chunk) and one is scratched. Boost leaked through and pushed oil through the valve cover likely destroying the PCV module along with it.

Engine mods:
VRSF catted DP and charge pipe
K&N filter
AA intercooler
BM3

Any suggests on next steps?

New engine? revert back to stock and try to fight for warranty?

Rebuild?
Appreciate 0