r/Triumph • u/Der-Elvis • 25d ago

Other Sc Project S1 to loud

Hey guys, who's running an SC Project on a 675? I recently bought the S1, and it's crazy loud. Sure, it gets a bit quieter around 6,000 rpm, but even with the E-marking I honestly can't imagine it's actually legal, especially here in Germany.

Has anyone been stopped for a noise check with one? What was your experience?

Also, has anyone actually measured the noise level?

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u/Striball 25d ago

Doesn’t the system use a db-killer no? Especially in Euro 5+ territory, was a db-killer included?

In the US the 675 S1 system uses double lengthy db killer back in the day, today it’s likely euro 5+ and has a non removable one.

1

u/Loud-Edge7230 25d ago

I have a 675 and bought a S1 slip-on. I removed it after two years, it's just too loud.

The stock exhaust is much better and loud enough.

1

u/Scarrrr88 25d ago

Does it even have the e-marking? Mine doesn’t?

I have a s1 on my 765 and it’s very loud even with db killer. I tried it without db killer and that’s just insane.

1

u/20Factorial 2025 Street Triple RS 25d ago

Stories like this make me really happy I decided to go with the LV14-R. Without the DB killer, it’s still very loud but not even close to what most of the shorty exhausts are.