V6 back box

rab60bit · 23rd September 2020, 21:28

A number of members purchased SIAC silencers off one of our traders.
Any chance they can give some feedback on 'muffling' performance and maybe how-to tips on what they did/purchased to modify the straight twin outlets to the OEM downswept design; there was some initial reporting but now I can't find anything.
I know it's a bit of a pricy upgrade but IMHO worth it if we can get back to the OEM noise levels both inside and outside the cabin.

stocktake · 24th September 2020, 08:23

See Post 50 here
https://the75andztclub.co.uk/forum/s...=303956&page=2

23rd September 2020, 21:28	#1
rab60bit Posted a thing or two Rover 75 Saloon & Tourer Join Date: Mar 2013 Location: Wilmslow Posts: 1,513 Thanks: 433 Thanked 301 Times in 212 Posts	V6 back box A number of members purchased SIAC silencers off one of our traders. Any chance they can give some feedback on 'muffling' performance and maybe how-to tips on what they did/purchased to modify the straight twin outlets to the OEM downswept design; there was some initial reporting but now I can't find anything. I know it's a bit of a pricy upgrade but IMHO worth it if we can get back to the OEM noise levels both inside and outside the cabin.

24th September 2020, 08:23	#2
stocktake Vis Whiz Rover 75 2.5 auto Saloon Join Date: Jun 2007 Location: LEEDS Posts: 20,587 Thanks: 2,057 Thanked 3,056 Times in 1,621 Posts	See Post 50 here https://the75andztclub.co.uk/forum/s...=303956&page=2 __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident