I had the secondary O2 sensors and SAP completely coded out like they were never there...
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I had the secondary O2 sensors and SAP completely coded out like they were never there...
schmiedmann makes some nice headers, with optional 'section 1' (M3-speak) piping with high flow cats. looks like a decent option, but i'm not sure the cats will get hot enough to do anything.
I have the ebay headers with DEI Titanium wrap on my ZHP. They make a nice difference across the power band and sound great on the car with the stock ZHP cat-back. The CEL is the only downside...
https://www.youtube.com/watch?v=w_y-...ature=youtu.be
^^ that's stock muffler?? I'm doing this soon and...damn maybe I won't also do a muffler.
This is the way to do it. Code out the CEL and you're good to go until you have to pass emissions.
If you need to pass emissions like I do, Google area 74 o2 simulator. It's effectively saved the N55 crowd from the government nonsense. Works on any vehicle.
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Thank you! I've long debated replacing the stock primary resonator with an x-pipe, but with the sound as-is...
Good luck with yours, post a video after it's done!
Header install delayed. Basically pulled every muscle in my body doing misc work on my car and a friends. Headers install next time I have energy! I'll make sure to post a clip.