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Originally Posted by ///Madgreek1
2016 340i 41k mi
Dinan intake, vrsf downpipe, remus catback exhaust, bm3 stage 2
Car went into limp mode on sunday, multi cylinder misfire. Flashed back to stock and took to dealership. After diagnosis, bmw states scoring on cylinder 6 walls. Engine replacement required. BMW denies warranty due to dme tampering.
Obviously I'm not about to fork over the $32k they quoted for engine replacement. What are my other options? Sleeves and forged pistons? Can I turn this into an opportunity to upgrade some stuff? I'm already waiting on a vtt gc turbo upgrade and have a supra pump ready to install. Thoughts?
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Try replacing spark plugs see if it helps