![]() They removed all of their "stage 2" maps that supported catless setups a few years ago and everyone freaked out. In fact, APR has been working with the EPA in certifying emissions compliant tunes for many years now. There are tuners in Europe that can do direct ECU flashes (like APR) and can turn off your CEL (9FF is one company for instance), so if you can find a legitimate tuner based in the EU, you will more than likely be able to get tuned with catless pipes without a CEL because they do not need to adhere to these insane US regulations that went into effect in the Trump era.ĪPR will be the last company the tune out catless pipes. are becoming very limited as the EPA cracks down on emissions compliance. I just heard that another huge tuning platform (HP Tuners) just made a similar announcement as COBB, so the options in the U.S. The only down side is I'll have to live with a CEL for life, which to me is fine if it means I can have the car tuned and completed. ![]() The good news is that access to all the ECU tables he needs to make the tweaks to finish up my tune is still available. ![]() He was forced to download the updated software last night and confirmed he no longer has the ability to turn off CEL's - so I will definitely have one because I'm running catless. They are quick (high 10 second cars), but the tune is not taking advantage of the extra flow of the turbos - there's a lot left on the table.Į40 tunes are still possible with COBB - that's what I'm currently working on with my tuner. I know a few people that are running APR's GTS kit with their TiAL turbos and they are about as quick as GTS turbos. □APR will be the last company the tune out catless pipes. So how about APRs stage 3 as it stands right now, does anyone know if that tune would code out for catless pipes? or are they now on the same boat? crap this is so confusing, most of my bolt ons are on now, except upgraded turbos, and I had planned to go Cobb and pro-tune hoping for an E40 file, but this whole mess has me rethinking all my plans. I'm just not sure why they are taking an all or nothing approach instead of allowing exemptions for low-mileage drivers and all-out race cars that never see the street. EVs are not emissions free, contrary to what every Tesla owner seems to think once you plug them into the wall. I guess nobody realizes most of us don't put a ton of miles on a car in a year and, even catless, we pollute less in 5k miles than an EV that drives 15k miles in a year and has to use coal for electricity to charge every night. There should absolutely be a way they can provide tunes for an actual race car though, this is really an overreach from the government impacting private businesses. You may have to go a more mechanical route with O2 sims or the like to fool the ECU into thinking the O2s are reading properly, for example, vs turning the DTCs off in software. Cobb told me the OTS tunes (stage 1 and 2) will not be affected so it's just the Protunes and only if they have changed any settings that have to do with changing/suppressing DTCs related to emissions.
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