Exhausts...pipe size question.

[Sharky]

Just wanted to check the size of pipe used by marks etc.
The st/st I have is 38mm OD, 1.2mm wall...

 

[one2dmax]

Here's what I had. I can't remember for sure but want to say 1.5" for the OEM and 1.625" for the aftermarkets.

 

[Sharky]

OK ..thanks mate...might look around for some larger bore mandrel bends...the stuff I used only owes me $30

 

[Sharky]

Not wanting to question ya Sean but the Kerker 4-1 and the V&H were both 38mm OD.

 

[one2dmax]

Might be. I don't remember since it's been awhile since i measured them. They are pretty much all the same though. If you use too large a pipe then you will lose a significant amount of torque.