TTE exhaust - repacking viability?

[Bossworld]

Had a complaint off a neighbour. Rights and wrongs aside, note that the car passes the MOT without any advisory for nuisance/noise whatsoever.

I'm trying to investigate the viability of getting my TTE repacked, and if there's any point or if I should look for a second hand stock exhaust.

It's had a replacement flange welded on a couple of years ago, but it's also covered 130k miles. The clamps/rings are both new replacements for what it's worth.

I got in touch with the firm that put the new flange on but they've said it depends on the state of the backbox as to whether they'd feel confident rewelding it shut.

Has anyone on here had theirs repacked and did it make much difference? I've got a horrible feeling I read of one person who'd had a repack and found everything blown out of the tip a week or two later?

Thanks

[wotugonado]

Just my opinion, but I don't think there's much point, they're designed to have a specific Sound, which while louder than stock is not that bad that it would warrant a noise complaint(its hardly a v8). If you're gonna pack it to change the noise, you may as well sell it on and go back to standard.

[househead]

I would try and handle the complaint with my neighbour personally. Unless you're sat outside in it ticking over or warming it up (or changing your coolant which I did reasonably recently and requires long idling), then how much effect does it really have on their life to hear your exhaust for all of a few mins when you pull away or return? Seems like a lot of effort and/or spend for you to go to. Maybe they just had a bad day?

[Petrus]

note that the car passes the MOT without any advisory for nuisance/noise whatsoever.

So there is no problem other than the perception of a neighbour.

I'm trying to investigate the viability of getting my TTE repacked,

Since the TTE muffler is a dealer option, I would be surprised if it relies on absorbtion material. Secondly it is not designed to be opened up. There are no rivets or such and it would need to cut open.
Íf there is menat to be any absobtion material inside then using proper stuff would prevent it from being blown out. The latest fluff for competition motorcycles is a sheer endless spun/woven ´thread´ which can not be blown out if wound loosely around a perforated pipe.
Again; I doubt whether the TTE relies much if at all on absorbtion material.
I agree with wotugonado. Better pass it on and go OEM if a TTE is an issue.

[Petrus]

I would try and handle the complaint with my neighbour personally.

He told us to skip the right or wrong but handing the neighbour a ball of packing material for the éars would be mý solution :-O

[Carolyn]

You could just keep the revs down around home?

Mind you, I prefer the stock muffler myself.  Most of this stuff (like intake noise) is noise for noise's sake, isn't it?

I know you boys go for a bit of noise....

[Joesson]

@Bossworld, 130K used to be considered a high mileage, for instance I had a 1973 Maxi that achieved 55K before it needed a recon engine! So to my mind 130K life from an exhaust has got be good, while @wotugonado says it is designed to have a specific sound I suggest it's also designed to have a specific life and it's likely coming to the end of it.

[househead]

Once warmed up, I find my TTE to be fairly reasonable on idle. Those cold starts though at >2k revs, they are a bit loud. I tend not to hang around though

Also my exhaust is the least of their worries, I'm on an urban stretch of the A21 which feels like it has a sign at one end telling motorcyclists to absolutely screw their engines for all they're worth.

[househead]

Didn't @shnazzle have a post where he looked inside a TTE/Remus backbox?

[shnazzle]

I asked, Joe, at Exhaust Doctor and they said it's not worth the money.
And besides, my TTE is no more or less noisy now than the day I got it years ago.

Personal thing. If you like the noise, stick with it. If you're not bothered, stock is little to no less performant on stock setup (and lighter!)

[Petrus]

Most of this stuff (like intake noise) is noise for noise's sake, isn't it?

On the intake side most mods are more noisy and counterproductive.

On the exhaust though, the exhaust has a potential issue (the pre cats), is fairly restrictive (just about the only aspect where power can be increased relatively easy) and quite heavy. There is a gain there albeit at a return of more noise than gain  ánd at a loss of quality; the OEM stuff is top notch.

[wotugonado]

@Joesson you're right it could just  be at the end of its working life.

For me though if you spend to have it repacked, the chances are it will still be louder than stock as that was how it was designed to be. Another thing to consider is it would surely affect its sell on value, who would want to buy a tte that has been muted to sound like stock exhaust, noise is one of its main selling points.

[Joesson]

I'd guess that there are those on here, with less concerned neighbours, that would be pleased to swop their standard exhaust for a TTE and pay for the privilege.

[Bossworld]

I would try and handle the complaint with my neighbour personally. Unless you're sat outside in it ticking over or warming it up (or changing your coolant which I did reasonably recently and requires long idling), then how much effect does it really have on their life to hear your exhaust for all of a few mins when you pull away or return? Seems like a lot of effort and/or spend for you to go to. Maybe they just had a bad day?

Forgive me, but I won't be going into detail on their reprehensible approach towards me and others, on a public forum.

I have to leave early in the morning due to traffic, but I roll forward with the engine off, only firing up as I leave the drive and changing up to second as soon as I'm in motion. The car is never left idling and I'm a firm believer that you don't shit where you eat so I drive into our street at 15mph tops.

I don't particularly want to get rid of the TTE and I'm not sure it would be that much in demand if it is deemed louder than a TTE should be?

Thank you for all replies, Patrick that's especially useful to know as it is them I contacted.

I found a picture on a Facebook group which I'll attempt to link to but I'll knock the idea on its head.

Is the single exhaust that much quieter? I have a cats2u cat that has done about 6k miles, and a factory manifold that has the precats removed. No other engine mods.

[Bossworld]

[wotugonado]

I'd not be arsed I'm afraid, Ive spent so many years tip toeing round others trying to be a decent neighbour, only for them to tuck me up with underhand behaviour, when something benefitted them over everyone else. My advice is enjoy the car as it is. One life live it.

[Petrus]

The TTE exhaust was a dealer option. Be aware that it came with TüV homologation meaning that it cannot put much more on the db meter and also needs to be of durable construction but your illustration sure puts thát into doubt!!

Thanks for the illustration.
Small wonder that this pot does not flow any better than the OEM one!!!

Yes. Repacking thís muffler would make a difference. There would be no need to really wrap it around the pipes, so no need for such a large cut. Stuffing the motorbike material would do wonders.

Tbh I think this a rather bad design as the retriction of the tight bends, diameter changes cause on actual flów between the perforated pipes.

The main selling point over here in Spain was/is the lóóks of the twin exit.

[shnazzle]

You mentioned that yours has been deemed louder than other TTEs. That changes things a bit.

Then it becomes a cost/benefit thing. 
Repacking may cost a pretty penny (I recall something around 150ish) but when it's open I'd be more concerned about possibly having a leak in those crap welds. That's not uncommon.
So maybe opening it up, repacking and potentially fixing any duff welds is worth it for you if yours is knackered. Also makes it more sellable if you would come to that decision.

There's always DIY option. Cut it open, restuff it with quality fibre mats, and take it to nearest welder to shut. Probably a quarter the price.

[Petrus]

There's always DIY option. Cut it open, restuff it with quality fibre mats, and take it to nearest welder to shut. Probably a quarter the price.

Sound advice imo.

Íf not leaking, which the welder should be able to sort as well.

[Bossworld]

You mentioned that yours has been deemed louder than other TTEs. That changes things a bit.

Then it becomes a cost/benefit thing.
Repacking may cost a pretty penny (I recall something around 150ish) but when it's open I'd be more concerned about possibly having a leak in those crap welds. That's not uncommon.
So maybe opening it up, repacking and potentially fixing any duff welds is worth it for you if yours is knackered. Also makes it more sellable if you would come to that decision.

There's always DIY option. Cut it open, restuff it with quality fibre mats, and take it to nearest welder to shut. Probably a quarter the price.

I honestly don't know Pat. At warm idle I don't think it's particularly louder than my mum's single one, which is why I'm concerned that cold idle may not show much difference (via a vis househead's post). As above I'm not racing a cold engine or similar.

As mentioned by Joesson it could just be an age thing and having already thrown a pretty penny at getting the replacement flange I don't want to spend silly money on maintaining a 14 year old exhaust.

I suppose this is going to come down to three things I'm not in control of

* Cost
* Is it in serviceable condition to be rewelded shut?
* Is a single exit going to be sufficiently quieter to quell the raised concern, as per wotugunnado's rather pertinent point?

[Tomo70]

Cos

You mentioned that yours has been deemed louder than other TTEs. That changes things a bit.

Then it becomes a cost/benefit thing.
Repacking may cost a pretty penny (I recall something around 150ish) but when it's open I'd be more concerned about possibly having a leak in those crap welds. That's not uncommon.
So maybe opening it up, repacking and potentially fixing any duff welds is worth it for you if yours is knackered. Also makes it more sellable if you would come to that decision.

There's always DIY option. Cut it open, restuff it with quality fibre mats, and take it to nearest welder to shut. Probably a quarter the price.

I honestly don't know Pat. At warm idle I don't think it's particularly louder than my mum's single one, which is why I'm concerned that cold idle may not show much difference (via a vis househead's post). As above I'm not racing a cold engine or similar.

As mentioned by Joesson it could just be an age thing and having already thrown a pretty penny at getting the replacement flange I don't want to spend silly money on maintaining a 14 year old exhaust.

I suppose this is going to come down to three things I'm not in control of

* Cost
* Is it in serviceable condition to be rewelded shut?
* Is a single exit going to be sufficiently quieter to quell the raised concern, as per wotugunnado's rather pertinent point?

Cost me £60 to have mine re packed. It made a great difference to the noise inside the car too.

Tom

[Bossworld]

Cos

You mentioned that yours has been deemed louder than other TTEs. That changes things a bit.

Then it becomes a cost/benefit thing.
Repacking may cost a pretty penny (I recall something around 150ish) but when it's open I'd be more concerned about possibly having a leak in those crap welds. That's not uncommon.
So maybe opening it up, repacking and potentially fixing any duff welds is worth it for you if yours is knackered. Also makes it more sellable if you would come to that decision.

There's always DIY option. Cut it open, restuff it with quality fibre mats, and take it to nearest welder to shut. Probably a quarter the price.

I honestly don't know Pat. At warm idle I don't think it's particularly louder than my mum's single one, which is why I'm concerned that cold idle may not show much difference (via a vis househead's post). As above I'm not racing a cold engine or similar.

As mentioned by Joesson it could just be an age thing and having already thrown a pretty penny at getting the replacement flange I don't want to spend silly money on maintaining a 14 year old exhaust.

I suppose this is going to come down to three things I'm not in control of

* Cost
* Is it in serviceable condition to be rewelded shut?
* Is a single exit going to be sufficiently quieter to quell the raised concern, as per wotugunnado's rather pertinent point?

Cost me £60 to have mine re packed. It made a great difference to the noise inside the car too.

Tom

Would you be able to share where you got that done Tom? I'm not averse to taking it off the car while it's off road and taking it in somewhere minus the tips.

I may be mis remembering but I think you said it sounded loud when I came past yours to get those shockers earlier in the year?

[shnazzle]

Cos

You mentioned that yours has been deemed louder than other TTEs. That changes things a bit.

Then it becomes a cost/benefit thing.
Repacking may cost a pretty penny (I recall something around 150ish) but when it's open I'd be more concerned about possibly having a leak in those crap welds. That's not uncommon.
So maybe opening it up, repacking and potentially fixing any duff welds is worth it for you if yours is knackered. Also makes it more sellable if you would come to that decision.

There's always DIY option. Cut it open, restuff it with quality fibre mats, and take it to nearest welder to shut. Probably a quarter the price.

I honestly don't know Pat. At warm idle I don't think it's particularly louder than my mum's single one, which is why I'm concerned that cold idle may not show much difference (via a vis househead's post). As above I'm not racing a cold engine or similar.

As mentioned by Joesson it could just be an age thing and having already thrown a pretty penny at getting the replacement flange I don't want to spend silly money on maintaining a 14 year old exhaust.

I suppose this is going to come down to three things I'm not in control of

* Cost
* Is it in serviceable condition to be rewelded shut?
* Is a single exit going to be sufficiently quieter to quell the raised concern, as per wotugunnado's rather pertinent point?

Cost me £60 to have mine re packed. It made a great difference to the noise inside the car too.

Tom

Would you be able to share where you got that done Tom? I'm not averse to taking it off the car while it's off road and taking it in somewhere minus the tips.

I may be mis remembering but I think you said it sounded loud when I came past yours to get those shockers earlier in the year?

If you do find a location near us that does it for closer to 60,. I'm having mine done too!

[cptspaulding]

FWIW I had my TTE zorst repacked about 18 months ago at a custom exhaust specialist in Glasgow & it certainly quietened the exhaust - for a while.

I had a couple of issues going on with the car at the same time that turned out to be unrelated to each other. The most worrying was that the (2zz) engine seemed to be "choking" at about 7000rpm & not going above. I was also getting an occasional misfire. My solution to the issues was the rather unscientific male default of driving it harder until something breaks then fix the thing that breaks. The misfire turned out to be a faulty coil pack that finally gave up the ghost.

The "choking" I now believe was the repacking material finally getting blown back out of the exhaust, as it cured itself & the exhaust got back to being as loud as it had been previously.

Waste of £100 & I won't be going back to C&C Exhausts in Hillington.

[Petrus]

The "choking" I now believe was the repacking material finally getting blown back out of the exhaust, as it cured itself & the exhaust got back to being as loud as it had been previously.

Waste of £100 & I won't be going back to C&C Exhausts in Hillington.

Looking at the photos I think it is the desígn and not the exhaust centre which is the issue.
The tight bends, t-junction and diameter steps are véry restrictive and will cause the gasses to take a shortcut thróugh the packing material as there is no baffle between the perforated inlet and perforated outlet pipes. Your 2ZZ´s exhaust gasses did this and so created an unmuffled flow path.
If thát is the interior of the TTE one, I´d run away fást from it!
I am flabbergasted that this had the approval of the TüV.