Exhaust Clamp

Prior to the second engine run I tried renewing the joint between the collector and the silencer with high temperature silicon sealant.  Unfortunately, this did not hold either.  So I bought an exhaust clamp from ebay, which I think is normally fitted to motorbike silencers.  I avoided the normal chunky u-bolt type clamp as this looks a bit clumsy and has more sharp edges to cause radius issues at IVA test time.

To make the join I first cut a 30mm slot on each side of the end of the silencer pipe.  Then aided with some more silicon sealant I clamped the collector and silencer together.  All seems good, but I'll only know when I next run the engine.  Fingers crossed.

Exhaust Trial Fitting

I decided it would a good time to trial fit the exhaust down pipes and 4-to-1 collector.  This would allow me to make sure that none of my wiring would be near to the hot pipes.  Having heard some horror stories about badly aligned down pipes that don't fit the collector I was a bit apprehensive.  In the end it only took five minutes to trial fit the lot and the fit is perfect.  Top marks Tiger.  Maybe my grief will be later on further down towards the silencer...