V6 rear silencer

ballymenaman · 17th October 2018, 00:36

Hello all
The support strap on the rear box of my 2.5 V6 saloon has snapped. The box isn't blowing at all even though the outer skin is badly corroded. I can buy a replacement Klarius box for less than 50 quid, with a 5 year warranty, which has supporting lugs attached to the box - thus doing away with the rover metal strap. My only concern is that I once bought a Klarius back box for my 75 1.8T and it wouldn't fit (the original rover box and the Klarius box were different shapes).
I have always been a fan of Bosal and I understand that they manufactured the original Rover exhaust systems. I can buy a new Bosal box for my V6 for less than 100 quid but I would also have to buy the Bosal supporting strap, which adds to the cost. The latter isn't as expensive (by a long chalk) as the genuine rover item listed on Rimmer's site.
My question is, does anyone know if the Bosal supporting strap (Bosal part no. 251-960) will fit the original rover back box? The latter could well last another 5 years and its retention would obviously save me money in the short to medium term.
Ta for any help.

Lord of Hog · 17th October 2018, 06:43

I've got a Klarius rear box on my 2.5. It fits fine. Like most after market boxes it's not as quiet as the Rover part, particularly between 1400 and 2200 revs but if you can live with that it seems a cost effective solution. Just make sure you get some decent rear hangers to avoid the pipe knocking on the rear cross member which can drive you to distraction.

IGH · 17th October 2018, 06:48

Good morning.

I had the exact same problem on my 2.5 V6 about two/three years ago.

I just removed the corroded outer skin and replaced the bottom strap on the exhaust bracket with the correct Rover part.

The only extra thing I did was run a tap through the bolt holes in the top part before fitting the strap.

It was still going strong when the back box finally gave up the ghost.

I have literally just replaced it with a Klarius back box (complete with a new set of rubber mounts), it was a good fit and I have been impressed with it so far.

Cheers

SD1too · 17th October 2018, 10:58

Quote:

Originally Posted by ballymenaman

The latter could well last another 5 years and its retention would obviously save me money in the short to medium term.

Andy,

The MGR straps are still available:
Bottom: WCU 000311 £17.39 + vat
Top: WCU 101021 £18.59 + vat

Simon

17th October 2018, 00:36	#1
ballymenaman Avid contributor 75 Contemporary SE 2.5 V6 Auto, Rover 45, classic mini and E Niro Join Date: Oct 2012 Location: Ballymena, Northern Ireland Posts: 239 Thanks: 25 Thanked 19 Times in 17 Posts	V6 rear silencer Hello all The support strap on the rear box of my 2.5 V6 saloon has snapped. The box isn't blowing at all even though the outer skin is badly corroded. I can buy a replacement Klarius box for less than 50 quid, with a 5 year warranty, which has supporting lugs attached to the box - thus doing away with the rover metal strap. My only concern is that I once bought a Klarius back box for my 75 1.8T and it wouldn't fit (the original rover box and the Klarius box were different shapes). I have always been a fan of Bosal and I understand that they manufactured the original Rover exhaust systems. I can buy a new Bosal box for my V6 for less than 100 quid but I would also have to buy the Bosal supporting strap, which adds to the cost. The latter isn't as expensive (by a long chalk) as the genuine rover item listed on Rimmer's site. My question is, does anyone know if the Bosal supporting strap (Bosal part no. 251-960) will fit the original rover back box? The latter could well last another 5 years and its retention would obviously save me money in the short to medium term. Ta for any help.

17th October 2018, 06:43	#2
Lord of Hog Gets stuck in Rover 75 2.5 V6 in Wedgwood Blue Join Date: Dec 2015 Location: Felbridge, East Grinstead Posts: 982 Thanks: 250 Thanked 294 Times in 206 Posts	I've got a Klarius rear box on my 2.5. It fits fine. Like most after market boxes it's not as quiet as the Rover part, particularly between 1400 and 2200 revs but if you can live with that it seems a cost effective solution. Just make sure you get some decent rear hangers to avoid the pipe knocking on the rear cross member which can drive you to distraction. __________________ Conformity is not morality. Consensus is not truth.

17th October 2018, 06:48	#3
IGH Avid contributor Rover 75 Saloon Join Date: Jan 2015 Location: Guildford Posts: 170 Thanks: 129 Thanked 48 Times in 21 Posts	Good morning. I had the exact same problem on my 2.5 V6 about two/three years ago. I just removed the corroded outer skin and replaced the bottom strap on the exhaust bracket with the correct Rover part. The only extra thing I did was run a tap through the bolt holes in the top part before fitting the strap. It was still going strong when the back box finally gave up the ghost. I have literally just replaced it with a Klarius back box (complete with a new set of rubber mounts), it was a good fit and I have been impressed with it so far. Cheers Last edited by IGH; 17th October 2018 at 06:52..