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FAO: People who've hammered their cats to make a decat



Can you post a video of the sound please? Apparently it goes all tinny instead of raspy like a decat :( I've seen Jord's btw so don't link me to that.
 
  Ph1 172 + Combo van
Done my mates saxo the other week and a few days before i put a decat on another saxo.

The decat one definately sounded slightly better.
 
I've got a brand new, genuine Renault cat sat in front of me that I bought for 50 quid. Find me a decat and I'll get one! I'm just asking for videos of people that have done it, like this one;

Can I borrow it in July for my MOT? :)
 
Bought from renault?
Nope, a guy who used to work from them got it from Renault and then sold it to me after having no use for it.

Can I borrow it in July for my MOT? :)
You can buy it if you find me a decat!

182 decats are cheap as chips and piss to fit, think about us poor 172 owners!!
Think of me, an even poorer 1.2 owner! Haha :(

mate cut cat out weld in straight bit of pipe done :D
I can't weld stuff :( and I have to have emissions tests on MOTs unlike you!

Hes got a 1.2 :eek:
Test that scooter :(
 
W

Willy

Nope, a guy who used to work from them got it from Renault and then sold it to me after having no use for it.


I can't weld stuff :( and I have to have emissions tests on MOTs unlike you!

Smashing the insides of a cat out is still gonna fail an mot.....
 
^ Think hes going to smash the current ones insides out and use the one he's bought for MOT?

Id go to a garage and get them to fit a removable cat if its possible. Just have to bolt the new cat on come MOT time.
 
I went to the garage, I can remove it myself but I just needed to get some bolts loosened. I explained what I was going to do and he said it sounds proper tinny rather than raspy like a decat.
 
  Evo
If you got two cats then why not? Saves you from buying a decat, and if the old bill inspect your car they're none the wiser :p
 
  Astra 1.9Cdti SRi
I have a De-cat smashed, but its not fitted to the car anymore, it did feel better made the exhaust more noisier tho.

The 1 connecting to the smashed cat i have has a flexi hose, which i just now only to reduce the bore size on the end ov the decat so it fits my 1.2 centre pipe again as it had a 172 centre section before, which made 1 hell of a poppin :)
 
every exhaust sounds different mate when decated. IMO it sounds raspy not tiny at all. hope nickr doesnt mind me posting this but i think he has got the same exhaust as you but his is decatted

http://s226.photobucket.com/albums/dd215/NICK_R12/?action=view&current=16032009016.flv
Decat sounds nice, I can't help thinking this will sound bobbins though :dapprove:

If you got two cats then why not? Saves you from buying a decat, and if the old bill inspect your car they're none the wiser :p
Just don't want it to sound cack! If it does, it'll annoy me until I change it.

jamie yours is loud enough as is tbh
I want more rasp, that's all ;) p.s. £55 <3
 
  alien green rs133
you want your car to sound like mine you mean... and too god damn expensive boy for damaged goods
 
  Charged Superleggera
only way to find out is to do it mate but im sure you will like it. i was worried at the start that it would sound crap but as soon as i got it fitted and took it for a drive i loved it and so its been on for the last 4months
 
only way to find out is to do it mate but im sure you will like it. i was worried at the start that it would sound crap but as soon as i got it fitted and took it for a drive i loved it and so its been on for the last 4months
Did you just hammer the insides out and let it all fall out of the bottom, then refit it? Or do anything else to it? Small step-by-step or a video would be very appreciated ;)
 
  Charged Superleggera
Did you just hammer the insides out and let it all fall out of the bottom, then refit it? Or do anything else to it? Small step-by-step or a video would be very appreciated ;)

yup but i took my time doing it. made sure i got everything out and pressure washed it to get all the debris out. you will be surprised at teh amount of stuff thats in the cat. i used a solid metal bar and a hammer to get it out. just put it at the straight end and hammer it. it will start to brake off then just shake it out the bottom and the stuff should fall through. just make sure you get the bits around the edges which requires a bit of manipulation to get to. the other option is to cut it in half then take the cat out then reweld.
 
yup but i took my time doing it. made sure i got everything out and pressure washed it to get all the debris out. you will be surprised at teh amount of stuff thats in the cat. i used a solid metal bar and a hammer to get it out. just put it at the straight end and hammer it. it will start to brake off then just shake it out the bottom and the stuff should fall through. just make sure you get the bits around the edges which requires a bit of manipulation to get to. the other option is to cut it in half then take the cat out then reweld.
I might pressure wash it then like you did. It definitely doesn't sound all tinny then? Is it easy to fit too, ie. just put the new gasket on and screw the bolts back into place?
 


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