MilanoChris said:
Rm01a felt like it was a bit more eager around the rev range, so maybe was more free flowing? But we're talking subtle differences.
Twinloop bit more oem plus type.
Sound wise, twinloop isn't much louder than oem, rm01a was slightly more louder which was nice to hear an exhaust note. However, I found it a bit dull at times, not much character, was a flat lower note throughout the rev range.
But the twinloop with a decat mani is a lovely daily, more tuneful and different notes to rm01a without being offensive and I'm guessing fine for track users, which I see that's your aim.
I would like it a little bit louder, but as it's a daily I don't want to ruin it with an OTT exhaust. Maybe a unsilenced b pipe but mugen must have designed the smaller pipe for a reason which people/ Internet talk says its better for torque?
I can see why people have sold the twinloop in search for more exhaust note from a cat back, but I would recommend a decat mani to go with it, but then those who aren't looking for a remap are limited.
I would like to try the rm01a again with a decat though, but I would say it might be a touch loud for me. The rm01a was louder and a bit of drone on motorway versus current setup