Making a 914-6 Conversion your own, The Quest for Quiet Options

[Root_Werks]

The Six Conversion:

2.7 CIS with 993 cams, 46/40 valves, 911S 8.5:1 CIS Pistons with Nikasil cylinders. Guessing it produces slightly more than stock 2.7S HP and has a much lower, broader TQ curve.

Current exhaust is stock 914-6 HE's and one of Ben's SS Quiet mufflers. Been very happy with the exhaust note the past few years, but always wondered if stock would be quieter.

Ben's Quiet Muffler ( I did have to reclock the tip as it was more for 1974-up 911):

[horizontally-opposed]

Very interesting thread, and agree the readings are surprisingly quiet for these cars—and suggest a lot of the noise may be chains/valvetrain/lack of water jackets/etc. In other words, engine noise.

I remember having an old factory Leistritz on my 2.2 six conversion initially, which was quiet until a giant hole blew out of it. But it was a little too quiet for me (and this as someone who doesn't love loud cars on the street anymore), and more importantly with too "normal" a note for an occasional use toy. I replaced it with a two-pipe sport muffler from Patrick Motorsports as a placeholder while I reviewed the two-pipe SS options out there, several of which looked appealing but seemed like high risk if you didn't like them. Turns out, the PM muffler is just about perfect for my needs. I do need to get around to having it professionally coated, however...

I sure do like the single-pipe look on your car. Understated, and cool—as if that's how a 914-6 would have looked in 1975-1976 had they still been making them.