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+18HP +12TQ alone.  With ECU tuning and MBH Long tube headers you can expect to see 50-60whp over stock. 

C55 AMG ECU Tuning

$1,025.00 Regular Price
$922.50Sale Price
Excluding Sales Tax
  • ECU will have to be sent to us for flashing. Most flashes happen the same day we recieve the ECU, and ship back out on that same day. Buyer is responsible for return shipping.

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