Loss in acceleration + throttle response ??

m4a1mustang

I'm thinking this might be the case. Though I believe the OP is stock...

I should probably put the factory intakes back on and see if I can tell a difference.

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Daishi

DO it up and let me know

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IcedZ

I'm having this issue... I'm stock except for K&N air filters. Points in common I notice:
1. I notice almost everybody is using red line oil (including me) - could be an issue??
2. Not sure about oil filters, but I also use K&N filter, and OP here said he was.
3. It's not intakes that are the issue, it's a mix of both. Could be air filters?
4. Only effects manual transmissions (from what I've gathered on the two threads)
5. Gas?


I'm going to try an ECU reset today and see what happens / how long it lasts. Then switch back to factory air filters if the problem doesn't go away or comes back.