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Yeah i know the oem exhaust has a muffler i just was wondering how much of a difference between stock DP and Cattless DP to make a choice if i wanted to go with catted DP as a compromise. But I don't regret going catless, it sounds really quiet. Inside the car at idle, 76 decibels; normal...

I'm not saying I don't feel a difference, but you have to pay attention to notice the difference. There is a small change in the exhaust tone and burbles, but it's not loud; it sounds stock, that is, with the exhaust valve closed. The biggest change in sound is the rev match, it's much louder...

I just installed Mad Fat Boy 5" catless downpipe, it's surprisingly quiet, almost like stock. It didn't throw a check engine light, but I only drove it for half an hour. The smell is worse than I expected, but I don't mind it. It's overboosting and closing the throttle as expected, but I will...

Yeah, get Bryan help, he is the expert, but also try stage 1 tune 91octane to see how the car behaves. and share your tune and datalog here also.

last week i paid femto 1050Euro to unlock my ecu which i believe is partial unlock? i still havent shipped my ecu so i just sent them email to see if i can upgrade and get their new unlock which should be full unlock i assume.

you got your car retuned since this post right? is this OTS tune or custom or your own tuning? It looks like whoever tuned the car didn't take the time to do it right. too much boost lower your wgdt too much knock by lowering your wdgt this should get better too much commanded fuel, your stft...

makes sense, i will check roadtop it might be what i need. But I wonder if there is a simple way to split the screen and maybe use Raspberry Pi and iDrive controller as a mouse. If screen sharing is an Android feature, maybe using an Android operating system on a Raspberry Pi is the simplest...

Hi, my supra didnt come with carplay and i know easybimmercoding and bimmertech offer solutions. but i wanted to know if there is something better, i want to install apps for datalogging and youtube. my current issue with the stock head unit is the audio delay is like 10 second and when i...

@rwense +1 cant send you a dm my message gets flagged as spam

thanks guys this is what i wanted to hear i guess i will keep it on normal mode on the street. is there any difference between brands that offers catless downpipe or are they all the same?

how much louder than stock? like 5 decibals or more? would it turn heads on the street loud? would you recommend catted over catless just based on sound level?

Hi, im planning to buy catless downpipe and i was wondering how much louder would it be for a daily driver? would it sound like a straight pipe or quiet-ish but raspy, and would it attract cops attention. does the brand of the downpipe matter for fitment, flow and power? im thinking of...