Figured I’d post a quick video of the factory non mperformance exhaust your m340 comes standard with. Here’s a good sound clip with a vrsf catless downpipe. #bmw#bmwm340i#mpower#mperformance#catless#g20#bmwcar#exhaust#bmwxdrive
I think your downpipe sound clips are backwards. The "closed" is actually open. The "open" is actually closed. You can tell by the exhaust smoke coming out. I believe the valve is on the passenger side exhaust. It also sounds louder when 'closed'.
@@CMbuildz Thank you for getting back with me. Regarding the smell inside the cabin. With the windows up, you can smell it? Or is it only when the widows are down. Thanks buddy
Only mod was the downpipe then? OPF still in place? I have to do something with mine 21' M240i, stock is way to quiet. Considering many combinations, really not sure what to do - just go with OPF delete with bypass module, OPF+high flow cat that doesn't produce cell (like AA) or simply go with catless downpipe and live with the CEL light.. or maybe catless +jb4. What does actually cel light do, just notify you or actually changes some parameters, so your car is actually running rich or smth? I mean, is it just annoying to watch or have some more serious implications? Because in the first case probably the by far the cheapest and most effective way would be to go with catless and simply ignore the light.
Ya fortunately my car isn’t equipped with opf filter. In your car yes the cheapest alternative would be just throwing a catless Downpipe and ignoring the light. The defouler does work for a period of time but the car is just to smart so eventually it comes back on. A good hi flow Downpipe is also a great option if you wanna spend a little more
@@CMbuildz thank you! I think I have decided - will go with Wagner 200cel downpipe and Miltek opf delete. Should be CEL fine for at least some time, after that I will either decide to fix this with JB4 or simply ignore it :)
And its done! As I said, wagner 200cel downpipe and miltek OPF delete. Sounds amazing, much much louder, but still not too extreme when driving normally. OPF delete module is working as it should, CEL light for catalyst is on from the start, but its hardly noticeable. All together with the installation around 2200EUR, but worth it in my opinion. Its much louder in person then on youtube videos though. I was skeptical if will be loud enough and its more then enough, upper limit for my taste, I am not 21 anymore :D
Can you clear the check engine light through the jb4? Or is the mini cat a permanent solution now? I remember the mini cats only working for like a month or so..
Yep, what ive done to my '23 M240i is put it in sport plus then reverse and remove the circuit breaker for exhaust flap. Made it so much louder and better during normal use as normally it only seems to open fully above 3000rpm even in sport plus (or in reverse)
@@MaciMD and if your dealer detects you did it they will void your engine warranty xD plus you can damage GPF filter by doing this always open valve thing. You interrupt the air flow. But I agree, I would also like to have the sound of the valves always open. But the real solution is to change the entire exhaust.
@@jarasw8226 you don’t need to do anything with ecu for downpipes and with those catless downpipes you get check engine light I have an active autowerkes catted downpipe and I have no check engine just more expensive
My dp on my 20 came off easy not so much on my lci any tricks you can recommend for breaking the vband loose safe loosing the clamp? Is car more responsive? Thanks
@@erniepulido5968 just get a prybar and wedge it in between… then twist prybar.. do that around the vband and then slide vband once loose either onto dp or turbo
@@b58sebas what ur hearing isn’t real pops unless ur catless downpipe, exhaust and reving up to redline then you’ll get pops. You need a tune for pops unfortunately.
