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182 rear exhaust mount inserts recommendations



finch wxm

ClioSport Club Member
  clio 172
I need two inserts for the rear backbox hangers.

I know poweflex do afew different colour options.

Whats peoples preference ,think ive seen red and black insert , is black a hardened version ?

Its for my stripped white shell build

Cheers
 

Kev@KAM

ClioSport Trader
  Badass Toyota
I'm not a fan of these solid mount inserts which was why we've worked with PhillipM to develop a honeycomb design that allows the exhaust to move with the engine. It means that the hangers and exhaust parts do not get stressed and crack.
Happily using the Grams bushes on my Clio :D
 

finch wxm

ClioSport Club Member
  clio 172
I'm not a fan of these solid mount inserts which was why we've worked with PhillipM to develop a honeycomb design that allows the exhaust to move with the engine. It means that the hangers and exhaust parts do not get stressed and crack.
Happily using the Grams bushes on my Clio :D
I have never heard of these Kev , maybe i should give these a try
 

finch wxm

ClioSport Club Member
  clio 172
I have them, fit well and haven't died yet. I'll check under the car tomorrow to see if they have sagged at all. I still don't fully trust 3D printed parts and they are relatively pricey imo but do represent a solution to a real problem 👍
Let me know Rob , agree they are expensive especially when i need 2 of them.
 

Touring_Rob

ClioSport Club Member
I looked under the s**t heap yesterday and the 3D printed mounts from KAM still look as new 👍

I still believe they are well over the top price wise - there will be £3 of filament used to print them but obviously some effort has gone into selecting an appropriate material and into the design its self plus KAM will be wanting to make a profit. Thats all very reasonable but would suspect more would buy if they were priced at something like £38-40 the pair.
 

Kev@KAM

ClioSport Trader
  Badass Toyota
I make more from selling Powerflex but this was one I felt needed to be sold. Sadly small volume manufacturing cannot compete with industrial leaders for cost per unit.
 

finch wxm

ClioSport Club Member
  clio 172
I looked under the s**t heap yesterday and the 3D printed mounts from KAM still look as new 👍

I still believe they are well over the top price wise - there will be £3 of filament used to print them but obviously some effort has gone into selecting an appropriate material and into the design its self plus KAM will be wanting to make a profit. Thats all very reasonable but would suspect more would buy if they were priced at something like £38-40 the pair.
Rob thanks for the update , totally agree like most things we buy massively overpriced . If they appear to be holding up and offer a better solution to the poweflex maybe i go with these.

Car is going to be a fast road set up with no interior just seats and a half cage
 

Touring_Rob

ClioSport Club Member
I make more from selling Powerflex but this was one I felt needed to be sold. Sadly small volume manufacturing cannot compete with industrial leaders for cost per unit.
Just a recommendation, customer feedback. I was in two minds about buying them for a while likely because I am quite aware of the production cost but also because I am generally wary of the strength and longevity of 3D printed parts - I will say that PhillipM has done a great job on material selection and the print, printing flexible parts is hard work! Plus I am always happy to pay more to support a UK business.

Rob thanks for the update , totally agree like most things we buy massively overpriced . If they appear to be holding up and offer a better solution to the poweflex maybe i go with these.

Car is going to be a fast road set up with no interior just seats and a half cage

No worries mate - don't let my opinion on price put you off, the part is certainly solving a problem which we have all experienced! Ultimately if they last for more than 3 years they will have paid for them selves (I was going through two aftermarket bog standard mounts every year) and like Kev above I had concerns regarding solid mounts - for me mostly the noise they might cause.

The printed mounts seem no noisier than oem to my ears. My build thread has some fitting pictures too (y)
 
Unfortunately the hangers on my Miltek are not exactly in the centre so still have to modify whatever bush I fit to get the exhaust to sit correctly :/ If you've got an aftermarket exhaust which most people will have you may have to faff around anyway.
 
  406 V6, Race Buggy
Just to clear things up a little on the price, the material alone for those is £70-80 per kilo, they take hours each to make and they need 24+ hours annealing at high temperature afterwards - yes, there's a lot of cheap polyurethanes on the market for printing, they're also terrible quality, stuff with fillers, low-temperature resins, or they're part blended with TPE's to make them easier to print which reduces their properties considerably.

Part of the reason the second batch took so long and Kev was out of stock for a while is that my original UK supplier that I use stopped producing materials, and I went through a dozen other suppliers that either had stuff that didn't match anywhere near the properties they advertised, would sag with heat, etc, or they couldn't guarantee decent tolerances or material certificates. The new material ones I have to import from a place extruding from BASF and Lubrizol resins.

TL : DR - For what I have to charge Kev for them, if anything I think he's undercharging for them just so you guys have a good alternative to powerflex.
 

finch wxm

ClioSport Club Member
  clio 172
I have a miltek system to go on the car , i will these a try rather than the powerflex
 

SWL16

ClioSport Club Member
  Clio 182
For what it's worth, my GRAMS ones are still on and working ~2years later, no complaints! Saved the constant replacement / addition of bolts and cable ties to the OEM mounts I'd done for years and I certainly wouldn't go back! Exhaust is positioned a lot nicer too and stays there, even with trackdays etc.

I had a bit of a weird arrangement with one of the hangers of the Janspeed exhaust going the opposite way to most exhausts, but sorted with an extra nut and washer to keep the exhaust in the mount under load.

I did cable tie them on, just so I wouldn't lose them if they came out given the price, but doesn't seem to have been a problem anyway.

(I can't comment on the powerflex alternative as have never used)
 

MRBILLYUK

ClioSport Club Member
  FF Jeden Osiem Dwa
I'm not a fan of these solid mount inserts which was why we've worked with PhillipM to develop a honeycomb design that allows the exhaust to move with the engine. It means that the hangers and exhaust parts do not get stressed and crack.
Happily using the Grams bushes on my Clio :D
Is Grams your own make? I know you sell Grams springs.
I was just wondering as the Philipm exhaust mounts are branded as Grams?
 


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