I've bought a replica of a Dbilas inlet manifold to the z18xe engine on ebay,it was fitted 2 days a go and a moticed that the entry of the manifold is too high....so i see it was to my engine but in the Corsa and Tigra,because of that i can't fit the stock aix box,so it was a cone behind the headlight!
The great problem is that since it was fitted my car is running much slower,could this be from the entry of the manifold?
The car have no errors on the ECU!
Please help me,i spend a loto of money and the car is worse!
Sorry for my english!