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#1 2+2 exhaust system

Posted: Thu Sep 19, 2013 7:27 pm
by DT
Rebuilding my 2+2 4.2
I am keeping the original exhaust manifolds but don't want the down pipes siamesed and them separated into the silencers

Has anyone found a suitable system that runs separate pipes the length of the vehicle off standard manifolds

Thanks

David

#2

Posted: Fri Sep 20, 2013 1:02 am
by PeterCrespin
If it's an auto you'll he hard-pressed to avoid the gearbox sump.

If it's a manual just make up clamped or welded-on bridge pieces between the end of the downpipes and the beginning of the silencers.

Pete

#3

Posted: Fri Sep 20, 2013 9:22 am
by DT
Thanks

It is not an auto

Am I correct in thinking you buy the non 2+2 downpipes, 2+2 silencers and then get a piece of stainless to bridge the two

Any good supplier in UK for the bridging piece

David

#4

Posted: Fri Sep 20, 2013 12:07 pm
by tim wood
Hi,
i had this made by etype fabs. I guess now that Calssic fabs would be able to do this.

in reality its a simple length of tubing

#5

Posted: Fri Sep 20, 2013 12:35 pm
by Heuer
You could try PD Gough in Nottingham. They made me a s/s system for my OTS and a mild steel one for the FHC but ideally you want to go somewhere where they will make the parts up and fit them for you because you are going bespoke. Bear in mind you will need the flexible bits in the middle of the secondaries. I suggest a quick Google of 'stainless steel exhausts' and your town name to find a specialist, give them a call and drop by for a chat. Marrying up different systems can be a nightmare because the tube diameters can vary.

#6

Posted: Fri Sep 20, 2013 2:59 pm
by PeterCrespin
DT wrote: Am I correct in thinking you buy the non 2+2 downpipes, 2+2 silencers and then get a piece of stainless to bridge the two

Any good supplier in UK for the bridging piece?
I would think every exhaust place in the country could do this.

They almost all have swaging/bending machines to fit practically anything to anything. Two nine-inch straights would be trivial for an apprentice, never mind a pro, and dirt cheap. Just assemble everything, measure the gap and the downpipe OD and silencer ID and go buy your bits if you can't trailer the complete car.

Pete