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Evora exhaust note: S vs 400


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Hi!

I have an Evora S with fan-type exhaust pipe, sport-kat and sport muffler. It sounds great but the exhaust note of the 400 is still another league. What is the difference to the Evora S that makes the 400 sound so much better?

 

Thanks,

Lupoletto

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Yes the 400s have 76mm pipework I've got a 2bular non-valved lightweight system on my S and it sounds simply epic and it has 100mm carbon tips too!  Its loud, I don't think it will get in to any

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I seem to remember that the rest of the pipework on the 400 is a slightly larger diameter which accounts for the extra noise. 

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If I recall the S is 70mm pipe diameters, but the 4XX cars are 76mm diameters, so you need to ensure you don't mix the two pipes up when swapping manifolds, decats, exhausts etc.

Alcohol. Sex. Tobacco. Drugs. Chocolate.  Meh! NOTHING in this world is as addictive as an Evora +0. It's not for babies!    

The first guy to ride a bull for fun, was a true hero. The second man to follow him was truly nuts!   

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Yes the 400s have 76mm pipework

I've got a 2bular non-valved lightweight system on my S and it sounds simply epic and it has 100mm carbon tips too!  Its loud, I don't think it will get in to any track days!

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  • 3 months later...

The actual front section is 51 vs 60 mm and the rear section, after the 2-1 junction, it is 63,5 vs 76 mm. Both differ by about 40 %, but I would assume it is the front section that affects the note / pitch of the sound most since it affects the accoustic tuning and pulse damping the most.

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1 hour ago, tim_marra said:

It does yes, opens the valve at tickover.

I can't find it.  where would it be?  Wonder if it's stuck closed? thx

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Doing headlights at moment so hopefully at weekend will be back together.  Removed the diffuser/under trays and can’t see any valve.

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Looks like you've got the Lotus stage 1 sports exhaust made by Janspeed. If it is it will have LOTAC 05504 and the Janspeed logo engraved on the silencer. 

Lover of everything Lotus Cars and proud owner of production Evora No.75 (2nd UK customer specced car by VIN). Originally from the Far East....of Anglia, I read black box data for a living so that could explain a lot!

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