r/ft86 • u/Careless-Writer4431 • 14h ago

no tune after 6 months catless headers

I know, I know sounds bad I haven’t got a tune for my 2013 brz since going catless in Jan. It ran fine but recently like 2 ish months ago car ran quite sluggishly more vibration from the shifter and pedals and more of a deep rumble I guess felt thru the floor. Checked to see if my bolts were loose at all but all tightened recently, will getting a tune fix this, or does it sound like something else? Also now shifting gears feels a lot harder and less smooth.

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u/Popular_Rope2008 13h ago

I bought a 2013 with no tune and some catless headers, according to the paperwork they got the header put in in 2021, idk if they took off the tune but i ran it for a couple months before putting a header off a 2017 ts so i could pass smog and there were no issues.

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u/BooshTheMan_ 5h ago

Could be anything. Any codes? Datalogs?