Big bore exhaust

[ChazUwe]

Sorry for all the questions at the moment, I have a bit of time on my hands so having a good look round the car before heading off to France in Sept! I understand my T350 has big bore centre pipes, I am trying to identify these to confirm this.... I measured the external diameter and they are 2.5". Were the original red rose centre pipes this diameter? These are currently matched to the TVR Power Cans, which make for a lovely sound but very loud! I am also considering decats mainly to reduce temps but not sure how much louder it will be, could / probably would push it into asbo territory!

Also I now have the ACT Carbon Airbox with trumpets, should I consider a remap bearing in mind these modifications if I want to get the most out of the setup? Where is the go to place for speed six remaps currently (Kitandclassics or TVR Power?)?

As always thanks in advance!

[Tom74TVR]

Hi,

I have a T350t red rose with the bore exhaust and the TVR power sport exhaust.... I also have a 4.3 engine which does make it really loud... a monotone drone when driving 130km/h. My car is not decatted and I was told it would make it even a lot louder... I cannot get under my car today to measure it but as with you, they fit perfectly on the sport exhaust.
Tom

[ChazUwe]

Hi Tom, thanks for that. If you happen to be under the car anytime soon it would be great if you could measure the diameter to compare! I have not seen the connection between the centre pipes and the Powers cans, assume there must be some connection flange in between. I find it fine on the motorway at 130kmh (although try and have the panels out most of the time ) but it is sometimes a bit much on the ears between 2500-3500!

Sounds like if I was to decat I might need to reconsider the other parts of my exhausts to get the sound I am after! Just worried that if I changed I would loose some of the great sounds of the exhaust and pops and bangs are quite controllable so can be avoided if not wanted

[chris watton]

Although not a T350, I changed the Powers sports cans for ACT's full big bore system and CliveF's conical decay pipes, and the exhaust is no actually quieter than when I had the standard exhausts, cats and Powers sports cans - although I did end up wrapping the whole exhaust from the decats to the back box.