S2000 exhaust modification

Rilot · 11 Jun 2012 at 14:33

I thought I'd post this mod I had done to my S2000. This was dreamed up by the UK guys over at s2ki.com and was born out of the desire to make the car sound more fruity without the awful droning caused by an aftermarket system.
Essentially, a pipe is inserted which allows a fair amount of the exhaust gasses to bypass the rear silencers.

The mod was done for me by Ray and Ang up at Daytona Autos. I think it sounds pretty good.

Pics

richyfingers · 11 Jun 2012 at 14:46

I've been keeping an eye on the thread on s2ki, tempted to get this done too. Sounds good.

lordrobs · 11 Jun 2012 at 14:58

Wouldn't that mess up the flow of gasses quite a bit?

Seems a bit bodgy to me, surely there must be exhausts available that give a sporty sound without being boomy?

Oh and lol at the related videos :eek:

Rilot · 11 Jun 2012 at 15:03

Haha, I have no idea what the deal is with the related videos.
Yeah, it's a bit bodgey but people have tried many different systems and only the single exit ones seem to have no boom. All the dual exit ones drone like mad.

lordrobs · 11 Jun 2012 at 15:06

Well, I guess if it avoids the boomy nature of the alternatives then it is all good.

My only concern would be the efficiency of the exhaust flow now. If my Solidworks licence was up to date I'd knock up a best guess CFD of what that mod would do.

Rilot · 11 Jun 2012 at 15:08

Yeah, it probably drops a few bhp off the top. Not fussed really as I like the sound.
The pipe that goes through the silencer is an S shape. We're bypassing 2 of the bends.

Here's a cut away of an S2000 silencer

Ryan-3 · 11 Jun 2012 at 15:11

I think that is a really nice sound!

Much better than the normal style of the aftermarket ones.

flinco · 16 Nov 2015 at 22:40

Rilot, do you know what diameter pipe you used? I'm planning on getting this done.

Rilot · 17 Nov 2015 at 07:33

I don't remember to be honest. It was a little smaller than the diameter of the original pipework. 40mm seems to ring a bell.

Logsi · 17 Nov 2015 at 08:30

Mate had this done to his S2K. Sounds rude on VTEC. Maybe a little too loud for my tastes but you know it's coming.

Not sure if he posts about anywhere but his was camo green plastidip and now a satin colour.

brightside229 · 17 Nov 2015 at 09:57

got a milltek dual on my s2k, and its not like your usual aftermarket fart can, it sounds really nice without droning or being overly loud, its fairly expensive though.

SoliD · 17 Nov 2015 at 11:39

Looks just like the exhaust bypass mod for the 996 instead of getting the official sports exhaust, as thats all they are in essence is a bypass.

Uncle_Gravy · 17 Nov 2015 at 12:29

I enjoyed the dramatic last 10s of the vid, that wall scene was intense!

Rilot · 17 Nov 2015 at 12:43

I had to watch it again. It was 3.5 years ago. My ex filmed it IIRC.