Punching out the cat is a cheap alternative to a full system, but is not the same as getting free power from it. I hope you didn't try to do all that with it on the bike. If you reused those, then you likely are leaking the exhaust which will contribute to the loss of power. The copper header gaskets aren't reusable as they crush down during install. Do you have an exhaust leak? Especially if you took the header off to decat it. Something else happened when you put those things on and removed the stock parts. Michael is also right in that a slip-on shouldn't change much in terms of performance unless it's tuned for that. You hook the header off, punched and scraped out the platinum core, and opened up the header in the 2-into-1 section? That's what B.H was getting to. The catalytic converter on the model is welded into the header. My main question is, will I be just fine going with a mail-in ECU Flash? I'm not trying to squeeze out every last HP, but I do want to get the bike running strong again and benefit from a tune/flash The one shop quoted $900 without even installing a PCV, so it's just not worth it to me. The ECU Flash is around $300-$350įirst off, does that price seem high for dyno tune? I'm in the NW Tennessee area (Ft Campbell). I'd prefer the dyno tune, but both of the local shops have quoted $800-$900, and one of the shops wants to install a PCV and tune it with that on there. So my options are a mail-in ECU Flash to SchnitzRacing (or comparable shop) with a specific list of mods done to bike and they can flash the ECU. It feels like it's lost maybe 20-30% power, the exhaust sounds flat and I know it's because the air/fuel is off. I expected it have to get a tune after we de-catted it, but I wasn't expecting it to feel so different. Recently we de-catted the header and the bike has been running rough. Hello, my 09 ZX-10R has a K&N Race Filter, Slip On Exhaust and it was running fine.
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