I’ve got a 2009 1.2 well the wife has.
Those links you gave I’m unable to view them but I remember creating an account a while ago whilst looking so I’ll have another look.
As I’m rather tired of removing then buying and it not fitting, can you remember if the bosal exhaust is nearly identical to the OE exhaust? In my mind the bosal will be exactly like the klarius and same issue where it’s oval shape and longer than OE
All the aftermarket pipes should be identical to the OE one. In my experience, they're just often subtly "out" in their dimensions, or where the hanger is located or the alignment of the hangers with the plane of the exhaust, etc.
Recently I had to fit an aftermarket mid-section to my sister's Murano... the hanger was at 9 o'clock on the pipe, instead of 10 o'clock.. so it hangs a centimeter or two lower than the OE and puts a very slight twist in the flexi section... but it fits, it's stainless steel and it's £160 rather than £380 for a Nissan one, so it's "near enough".
I never had any fitting problems with Bosal and I wouldn't be able to tell one apart from an OE one, apart from the manufacturer's markings.. the aluminised finish also looks OE spec.. not "thinner" (or in some cases, non-existent).
I think Klarius bought Bosal aboot 5 or 6 years ago.. and I've noticed there are less Bosal about these days. They may be spending more effort on OE supply.... but anyway, it's always the brand I look for first.
Klarius - I think I've had one and it felt slightly cheaper (thinner/lighter) than a Bosal one.. but otherwise I can't remember any real issues fitting it.
B&M (for me) are the worst for fit.. I had a centre pipe on the Younger Mrs S' Cinquecento that had an slightly oversized silencer compared to OE and that was a PITA to align with the "transmission tunnel" so it didn't tap the heat shield... but it could have been slightly bent in transit (it was visibly not straight) rather than made that way. But.. it cost £28 from memory, so I made it fit..
If you can get an OE on for £102 - 120 then that's a good price and you know it will (or should) fit perfectly.
Ralf S.