Here's Why The McLaren Senna Has Different Exhausts In America

Photo Credit: Dave Burnett/McLaren

“Wait a second,” you scream at your computer. “You mean to tell me that U.S.-spec McLaren Sennas don’t get the same exhaust as the euro-spec ones?” This is true, but for once it’s not a bad thing. Our American Sennas are even rowdier than what’s pootling around Europe right now.

Euro Spec. Photo Credit: McLaren

I personally did not notice that the exhausts on American-sent Sennas didn’t match the ones that debuted first for Europe. I was busy staring at all the aero wondering how that would fit into the future GT1-spec car that exists in my dreams right now.

Non-Euro Spec. Photo Credit: Dave Burnett/McLaren

Also I was wondering if anyone would take out that plastic panel in the door and drive around with their leg hanging out.

Euro Spec Again. Photo Credit: McLaren

But McLaren brain genius Peloton25 did notice the difference, and set to clearing the air about it on the Notes app of the soul, Instagram. The basic explanation is that Europe has tight noise regulations that the U.S.A and other parts of the world do not, so McLaren designed its Euro Sennas to have baffles on its outer two exhausts and also a third exhaust with more restriction to keep noise down at low speed. Higher speed opens things back up to full noise.

Euro Spec. Photo Credit: McLaren

It’s kind of like the exact opposite of how the Honda Civic Type R has three exhausts with a loud middle for more noise at low speed, then a quieter outer two exhausts for a softer highway cruise.


In any case, here’s Peloton25's explanation:


I reached out to McLaren, which confirmed that this is officially official. What McLaren wasn’t exactly sure of was what the exact decibel levels allowed for each exhaust is, but if I hear back from them I’ll update this post.

But there you have it. American (and other non-European) Sennas are louder and brasher than the ones in their home market. I guess I shouldn’t be all that surprised after all.

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Raphael Orlove

Raphael Orlove is features editor for Jalopnik.