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Hey everyone, I’m running into a mess after installing long-tube headers and I’m hoping someone has seen this before. Right now I don’t have a tune, my rear O₂ sensors aren’t plugged in, and I’m just running header dumps while I wait for my mid-pipe. Whenever I do a hard pull, my car throws a...

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This is it—your very last day to grab up to 15% OFF sitewide! Our sales don’t come around often, and this one ends at midnight. Don’t miss out! Use our vehicle finder and secure your next lighting upgrade before the clock runs out! Click HERE to learn, browse, and shop Diode Dynamics...

Hi, last friday a CEL popped up. P0430 code (Only one). P0430 Catalyst System Efficiency Below Threshold (Bank 2). I have no mods (stock cats, no CAI, no headers), Ran only on stock Tune. Only "mod" is a Roush AxleBack. I cleared the code and added a "cat cleaner" additive. Today, the light &...

Hi Everyone i installed a tune and went into vehicle info on my sct and the Strategy code is not available any idea why is that

First off heads up I’m a noob Car has a rattling raspy noise coming from the passenger side, was told it’s a header leak by a shop and two of the bolts have came out but they told me not to worry about it as it wouldn’t affect performance :) Clearly that’s not true, cars been running very...