Coring Exhaust Has Begun

So , 749 silencer now cut and open , that was fun !! Tubing ordered so whilst it’s coming a couple of questions. I am leaving the cats in the pipe/silencer , theory being it may keep some back pressure and not affect ecu fueling hopefully . And not give full loudness
The plan is to use the wire wool and stranded stuff but add more to fill missing metal . Do I pack this tight or loose? Does tight quieten things or make noise
Any recommendations of wadding

 

Getting there

 

Ready to find a welder now

 

Bugger the filler used expands and doesn’t require mesh as it matting not strands , that’s what they told me ??

 

They also said don’t pck too tight as it needs to expand and dampen the sound

 

I have the standard one as back up if the modded one is too loud and if needed for mot’s

 

Was hoping by keeping the cats it will keep the noise down , heat I hope will be reduced by the increase in flow under the seat

 

Well, found a local welder nice lad , into his bikes so it’s gone in
TBC…..

 

Now back and looking ok ,
now weighs 6-3kg , what’s a standard one weigh? Think I’ll fit after I have booked the mot