I've taken out my secondary cats, and I like to make lots of loud pops and bangs all the time
Cop must have been close. I got a letter in the mail to visit the EPA here in Australia (Environmental Protection Agency) to test my car. They can do that there if they wish.
Had to go to EPA, but had to put stock DP back on first (this was three years ago with my old S3). $750 in labour later to uninstall/reinstall later.......
I have a BCS 100mm downpipe with the 100 cell cat and it's really loud (nice deep noise) on dynamic and really quiet on comfort (cold start is loud though).
I'll try and get a few clips together
Is this for the facelift? Asking for a fellow owner not on this forum
Sounds great! I recall @Kristijan Sabljar also saying it was very difficult to fit.I've just completed removal of the standard DP and replaced it with a Milltek cat delete DP . Initial feedback is that it makes quite a difference and increases noise, not asbo loud but certainly more dB's. The note has changed dramatically and it now sounds absolutely fantastic! Defo worth doing for this alone, plus you get a few extra ponies released. On comfort it's only fractionally louder and I don't think would upset any neighbours. On dynamic though, OMG! It's lush.
Changing DP's is a huge undertaking, and not one to consider for the driveway. I'm fortunate to have a 2 post lift in the garage, without it I wouldn't have stood a chance. Would also be easier with two people.
Sounds great! I recall @Kristijan Sabljar also saying it was very difficult to fit.
I've installed decat miltek for a week. I have also installed REVO stage 1 and the valves are always open in dynamic mode. It really makes too much noise especially between 2000 and 3000 rpm. I purchased the final part with a 200-cell catalyst. I should be here in a week.
Yup I'm finding exactly the same. With no cat to offer any restriction or sound attenuation you can hear everything from the engine, wanted or not. This is why I'm considering a 100 or 200 cell cat, I don't want to hear the ticking.
The exhaust note is epic though, a tad loud but it pops and crackles like it ought to.
are you getting the dreaded tick? would love to know as been told each car is different. some suffer more than others..I've just completed removal of the standard DP and replaced it with a Milltek cat delete DP . Initial feedback is that it makes quite a difference and increases noise, not asbo loud but certainly more dB's. The note has changed dramatically and it now sounds absolutely fantastic! Defo worth doing for this alone, plus you get a few extra ponies released. On comfort it's only fractionally louder and I don't think would upset any neighbours. On dynamic though, OMG! It's lush.
Changing DP's is a huge undertaking, and not one to consider for the driveway. I'm fortunate to have a 2 post lift in the garage, without it I wouldn't have stood a chance. Would also be easier with two people.
is it noticeable still in traffic or at low RPM ??I replaced the terminal without miltek catalyst with terminal with 200 miltek cell catalyst. I prefer to use 200 cell catalyst. The sound is less strong but for my taste much more beautiful.