K&n cai

[Dogstar]

I read a post on diablo sport that said pull 5 away fromthe global spark setting to retain 87 octan with the cold air intake tune. NOw that was for a different cai, i have a k&n cai, and the tune for it is also is for 91 octane so if i take 5 away from the global spark setting, would i retain 87 octan?
2007 4.6 gt mustang-Diablo sport tuner. Thanks

 

[jasongt06]

You can try that and listen for pinging. If you don't hear any then you are good to go.

 

[ranger04]

I would replace the K&N cone filter with a dryflow from AEM. Indeoendant testing has shown that K&N filters don't filter well, thier flow is great, but they let too much dirt through. Also the dryflow doesn't require oiling, ford mafs hate oil on them as we all know.