Going back to a standard exhaust
Discussion
My new Tamora has a sports decat and a sports exhaust. Don’t know which manufacturer. Nice sound with lots of pops on the overrun but a bit too loud to use early in the morning when my neighbour’s toddlers are sleeping.
How do I make it quieter? Do I need to get another cat and exhaust or just one of them? Or is there another solution?
How do I make it quieter? Do I need to get another cat and exhaust or just one of them? Or is there another solution?
i had a similar situation before i binned the day job. the solution i came up with but never executed was a motorbike decibel killer thingy, but instead of bolting it in, having a heavy duty spring clip attached so it could be slipped in and removed when far enough away where there is nobody to annoy, or they are people you don't care about annoying 
I had exactly the same problem quite a few years ago, where the Tamora that I was buying had a noisy exhaust but lucky for me the seller put the original factory fit exhaust back on - what a relief that was!
Noisy exhausts are O.K. for short bursts, but can tend to drone on the M.Way, but I am an Old Bloke.
Noisy exhausts are O.K. for short bursts, but can tend to drone on the M.Way, but I am an Old Bloke.
Thanks for the replies chaps. The silencers are a clever idea but they’ll end up rattling around in the boot when I take them off, plus I’d probably get a bit mucky doing it and that wouldn’t work with my work clothes.
WRT to changing the exhaust...would just changing the back box do it? I don’t know why but I’ve got it into my head that the sports decat is the noisiest component. Unfortunately it’s probably the most expensive so if I could keep that and just change the back box that would be perfect.
WRT to changing the exhaust...would just changing the back box do it? I don’t know why but I’ve got it into my head that the sports decat is the noisiest component. Unfortunately it’s probably the most expensive so if I could keep that and just change the back box that would be perfect.
Three options.
Swap the decats for a set of CATs and retain the sports back box.
Pretty simple job but easiest on a lift rather than off ramps / stands.
Will mute the sound considerably.
Swap the rear back box for standard. Again pretty simple - although be careful not to pull the pipes out of the CATs ☺.
Will mute sound again but not as much as the CATs.
The sound will change with both.
Third option is do both. The quietest option.
Only you can decide if you like any or all of the other sounds the changes make.
Personally, I like the deCAT sound with the standard backbox.
Where are you? If you're London way I'll happily lend you a standard back and some CATs.
Swap the decats for a set of CATs and retain the sports back box.
Pretty simple job but easiest on a lift rather than off ramps / stands.
Will mute the sound considerably.
Swap the rear back box for standard. Again pretty simple - although be careful not to pull the pipes out of the CATs ☺.
Will mute sound again but not as much as the CATs.
The sound will change with both.
Third option is do both. The quietest option.
Only you can decide if you like any or all of the other sounds the changes make.
Personally, I like the deCAT sound with the standard backbox.
Where are you? If you're London way I'll happily lend you a standard back and some CATs.
Not far at all.
Not sure I want to part with the rear box. I love the 'full bore' decat and ACT sports box but the crescendo of cannon fire on lift off can be a bit much in London traffic.
That said I am happy to loan out so you can check what you find 'best'.
I do have a spare set of CATs that have been ceramic coated by Performance 1 Coatings that I am happy to part with. Had them coated but didn't fit them (decats still there).
The TVRCC Surrey meet is this Thursday evening. I shold be able to make it - assuming my meeting doesn't run on too long.
Not sure I want to part with the rear box. I love the 'full bore' decat and ACT sports box but the crescendo of cannon fire on lift off can be a bit much in London traffic.
That said I am happy to loan out so you can check what you find 'best'.
I do have a spare set of CATs that have been ceramic coated by Performance 1 Coatings that I am happy to part with. Had them coated but didn't fit them (decats still there).
The TVRCC Surrey meet is this Thursday evening. I shold be able to make it - assuming my meeting doesn't run on too long.
I'll take some photos this evening.
Ebay has some 'new' ones for £186 each but don't know the quality.
There's a used Tuscan one for £130.
The ceramic coating was £150ish - I had a batch of stuff done.
I think £350 for the CATs is reasonable.
Send me an email through PHeads and I'll send you the pics
Ebay has some 'new' ones for £186 each but don't know the quality.
There's a used Tuscan one for £130.
The ceramic coating was £150ish - I had a batch of stuff done.
I think £350 for the CATs is reasonable.
Send me an email through PHeads and I'll send you the pics
Edited by mk1fan on Monday 23 April 16:40
It isn’t bad at all. It’s just different. My neighbours kids have a bedroom at the front of the house. They’re in bed by 7.30. If I have an early start I’ll wake them and if I have a late finish I’ll wake them.
The pops and crackles with the sports exhaust and decat are fun. It’s also fun giving the loud pedal a little squeeze when you start up in a busy area. Even on the motorway they’re ok. I did 150miles when I picked the car up and it was no problem at all.
The pops and crackles with the sports exhaust and decat are fun. It’s also fun giving the loud pedal a little squeeze when you start up in a busy area. Even on the motorway they’re ok. I did 150miles when I picked the car up and it was no problem at all.
I have a blue flame sport back box and de-cated and it sounds lovely nice pops and bangs but the problem is come mot time as new laws coming in in may 2018 which will make it impossible to pass without the cats back on the car so I’ll be looking for a decent set soon for next years mot as mine just scraped through a week ago
I just reverted back to the standard exhaust on my T350 with cats still in place. The powers bean cans gave me headaches on longer drives. Too loud and too bassy from idle to mid revs and too unrefined scream above that. Tried to install a borrowed ACT back box, but quality was so bad it didn't really fit. I would have to modify it which I didn't since it's not mine, so gave up on that. But not convinced that one would actually be quieter than the bean cans considering the small volume of the ACT muffler.
So, with the original back box it's much quieter now. Maybe a tad too quiet plus I miss the pops and bangs....but at least it sounds like somebody actually made an attempt to design the noise instead of just installing a straight pipe. I know many of you might like it that way. ;-)
May opt for the full bore ACT system later on which comes at a hefty price tag though. Never heard that system in real life but was told it's louder than the original exhaust but quieter than the bean cans, more refined but still has pops and bangs.
So, with the original back box it's much quieter now. Maybe a tad too quiet plus I miss the pops and bangs....but at least it sounds like somebody actually made an attempt to design the noise instead of just installing a straight pipe. I know many of you might like it that way. ;-)
May opt for the full bore ACT system later on which comes at a hefty price tag though. Never heard that system in real life but was told it's louder than the original exhaust but quieter than the bean cans, more refined but still has pops and bangs.
I have the bean cans in the attic for much the same reason. I prefer the ACT rear box on the Tam, which is just a different sound quality to the cans from that full width but small silencer. It gives more pops and bangs, and a raspy exhaust note, which I like. It's just a touch too loud for track days at about 100-102db(A) and then needs the std box fitting temporarily.
Would never take my cats out, couldn't do with the stink, and it also helps to manage the noise. Standard silencer is just too strangled for me.
Would never take my cats out, couldn't do with the stink, and it also helps to manage the noise. Standard silencer is just too strangled for me.
I'm running a Tuscan with ACT de cat tubes and sports exhaust with shark nose cans, not quite as loud as when it had cats and standard exhaust with sleeved cans, I preferred the sound with the cats in place, but will not go back to cats as the brick melted destroying number 4 cylinder bore. Without cats and using the sleeved cans it is too loud.
Jeff J said:
will not go back to cats as the brick melted destroying number 4 cylinder bore.
How is this possible, with a downstream component on the exhaust side? I would have thought overlap and scavenging makes it impossible to suck debris back in through the exhaust port? And if it did, it would have been three cylinders, not one.Gassing Station | Tamora, T350 & Sagaris | Top of Page | What's New | My Stuff