2012 CLS63 cats deleted downpipe ( video passing by)
installed downpipe with no cats. the Resontaor is stock 100%
http://www.youtube.com/watch?v=6FleH...ature=youtu.be
nothing happens when CEL comes out. didn't even feel power loss.
thats because you dont know the power of your car
. A CEL means late timing to the ECU , which is an automatic 25-30 RWHP loss. Sorry to brake it to you, but if you havent tuned it, you are losing power. I think you are in Abu-Dhabi. Give me a PM and I will direct you to one of the best tuner in the world for this engine.
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. A CEL means late timing to the ECU , which is an automatic 25-30 RWHP loss. Sorry to brake it to you, but if you havent tuned it, you are losing power. I think you are in Abu-Dhabi. Give me a PM and I will direct you to one of the best tuner in the world for this engine.i returned my stock exhuast since 3 weeks, and making some fixing on the downpipe to make it 100% perfect.
i will tune it after i install it again back.
i didn't notice the loosing power because as soon as CEL comes a stop, delete the fualts and turn it on again.

there was something wrong when CEL ( i feel gear is hitting when chaning).
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