ZM custom backboxes + tips BCS Powervalve Now Fitted
- Thread starter mr wilks
- Start date
RedUn said:
Yep they're on , done 700 miles on them
Noticeable difference in tone under load & revs , more mature id say , deeper & less raucous :? not as "shouty"
A good bit quieter on cold start but there's a drone at 1800/2k revs which will be addressed in the coming weeks when i can get back ( the Sport boxes have no cabin drone at any revs )
Discussed with BCS that I may even try one of each box type as they are both pressure balanced so will not affect anything
zmaster007
Member
Interesting! Look forward to further updates on this quieter version
DPG said:
Sometime between now & Dec 31st gonna pop back to BCS for a tweak which will either be sleeves inside the current boxes to remove the slight drone around 2k ( tbf it wasn't deafening but definitely not there on the sport boxes ) or switch to a combo
No going back now anyhow as i sold the OEM boxes this week to a forum guy in need :wink:
DPG said:
My honest opinion on the first 2 is do one or the other if its to free up some better noises :evil: Eventuri / Gruppe was next on my list but the boxes have made me more than happy how the car sounds both outside & inside so won't be bothering
Aero's would be nice & i am going to Normandy in the van 27th Jan for a week so could maybe arrange a purchase of a few sets via one of our french members :wink: although my modding cash is about to go on a timepiece i think 8)
zmaster007
Member
any videos of the quieter boxes?? 
Job done !
Big thanks to Nige & Dave at BCS , just back from a final tweak on the "Prestige" boxes & for me its now mission accomplished
Imo they look much better than OEM even though style is copied the upsize really suits the openings better i feel + the sound is a absolute joy compared with the somewhat muted stock boxes
No drone or boom at any revs & on tickover no difference from OEM noise
Can't recommend BCS highly enough for their attention to detail & customer service
Big thanks to Nige & Dave at BCS , just back from a final tweak on the "Prestige" boxes & for me its now mission accomplished
Imo they look much better than OEM even though style is copied the upsize really suits the openings better i feel + the sound is a absolute joy compared with the somewhat muted stock boxes
No drone or boom at any revs & on tickover no difference from OEM noise
Can't recommend BCS highly enough for their attention to detail & customer service
I doubt either set of boxes would be a problem as neither are ridiculously loud .
The Sports just had more menace & bark when demanded , the Prestige would suit the more mature owner looking for more aural character . Both look the same & whilst OEM in style & fit they look so much better than the smaller original ones
The Sports just had more menace & bark when demanded , the Prestige would suit the more mature owner looking for more aural character . Both look the same & whilst OEM in style & fit they look so much better than the smaller original ones
Hi Nige, I'll for for a set of the sport boxes.
Email me on [email protected] tomorrow to arrange payment etc.
Ta
Dan
Email me on [email protected] tomorrow to arrange payment etc.
Ta
Dan
dannyg_m3 said:
Dan,
You are relying on him being all over this thread, might be quicker for you to mail directly!?
[email protected]
Matt