change of full exhaust leads to ecu tune?

[lmfamglia]

hi i was wondering if i get a cat back system and headers for my dc5r is it necessary to get the ecu tuned i read somewhere that it can damage the engine or something if you dont?

cheers

[civicCXI]

The factory ecu should be able to handle full zorst change. What they normally do after the installation is to disconnect the battery for a few minutes to reset the ecu.

But if u also install aftermarket ecu (kpro), u'll see a bigger gain.

[Limbo]

yeah all ECUs in Honda will be able to adjust slightly to a full exhaust & other bolt-on mods.
This doesn't mean that you won't get more power if you get it tuned though.

[lmfamglia]

cheers thanks for clearing that up guys

[K20aCivic]

to say you should get your ecu for better acurate reading tuned as your fuel/air ratio will change due to the extractors and exhaust.
This could lead you to power loss and your response in the long term if not tuned properly.

[Chi]

Well for AUDM DC5R i believe you will notice a small gain , simply because the stock exhaust is very restricting.

As for damage to your engine, no nothing like that will happen, but you may lose a bit of fuel economy.

An aftermarket ecu+tune will give you gains and improvement over the standard