2016 Smart Fortwo Pure, silver and black, tinkering new mods now.
Hello all, I'm thinking heavily on putting a Carlsson exhaust and a dekat downpipe on my 2016 Fortwo. While the exhaust is removed I can't imagine not freeing things up with a catless downpipe. My question first is: has anyone here ran a dekat downpipe on a 453? If so what 02 sensor "fix" works reliably without any trouble codes? I assume there are people doing these mods successfully somewhere. I'd also assume the biggest gains in the exhaust region would come from removing the restriction of a cat. Is it even worth it on these cars to install a nice exhaust with a cat still in place...from a performance standpoint that is? Obviously a proper tune would be nice to finish off said mods but I'm unaware if anyone writes custom mod specific ecu tunes for these. I keep seeing the blanket performance tunes and piggyback boxes but have yet to read about any custom tailored tunes for the 453. I'm only inquiring to learn more on these Smarts. I've had my share of modding and running custom tunes from others on other vehicles, but never played with a Smart until now. I'm not expecting miracles or anything. I'm just curious what's out there, what my options are, and what is working for people in these regards?