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exhaust silencer modification

1st time I got a welder to do 1 5/8" diameter bypasses, a la LPMM route. You may wish to do somehting between that an up to 2" & search youtube.

Mine changed sound dramatically: Idle sounded deeper/throatier and I was happy with it. It also hit the highest noticeable noise levels at about 2700-3200 rpm but there was a bit of torque loss originally at 2700 rpm. That was sorted after someone banged the back of my car and I got new cat & silencers with new 02 sensors: the new silencers had LPMM done again and with a new O2 sensor there is now no torque loss.

I would be lying if I said there was absolutely no resonance inside the car at idle, becasue therre is a little with which I am not concerned at all becasue it is so small. Nobody else has noticed it from the passenger seat.
 
Hey Shaun, isn't it about time you changed that avitar?? We don't see you much on here so maybe it's just a gasp from the past!!!

See you soon.

Regards

Dave
 
Thanks Dave.

You're right of course but I do not have a single photo small enough to meet PCGB rules for avatar size, drat. One of the prior 964 regsiter secretaries transformed my 964 C2 targa photo into a tiny file to use here. To change now I might have to get an old kodak and do a low quality scan to get a file small enough.

Now for an instamatic off ebay!!
 
Shaun,

We 964 Register Secs can perform these little tasks! E-mail me a suitable pic (to 964@porscheclubgb.com) and I'll resize it for you.

Regards

Dave
 
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