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post #1 of 18 (permalink) Old 25-11-2013, 22:16 Thread Starter
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Custom home made exhaust

Now then. At the weekend I managed to get my hands on an angle grinder and well..... Decided to de-cat the old girl =D



Up on stilts XD











Just needs welding up now....probably will get a garage near my work to do it as I don't have time.



Oh aye, found this at work, not a 100% direct fit obviously, but I refuse to have a back box on the car =P not quite sure how ill end up making it fit....but I'll do my bestist.



In essence, by the weekend, the car should have a straight through exhaust that so far hasnt cost me a thing and shouldn't cost me anymore than 20-25
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post #2 of 18 (permalink) Old 25-11-2013, 22:54
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If this is a petrol then you'll find it doesn't pass an MOT anymore. (CAT looks like a petrol one as there is no soot in it!)

You'll also find it VERY noisy and annoying without any backbox too.
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post #3 of 18 (permalink) Old 26-11-2013, 06:13
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Also, the cat is quite valuable and you've just destroyed it?!
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post #4 of 18 (permalink) Old 26-11-2013, 09:10 Thread Starter
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It's a diesel. I know the internals are valuable, but I don't have the time to weigh it in. I did it this way to still be relatively MOT friendly.
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post #5 of 18 (permalink) Old 26-11-2013, 09:26 Thread Starter
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Originally Posted by E_T_V View Post
If this is a petrol then you'll find it doesn't pass an MOT anymore. (CAT looks like a petrol one as there is no soot in it!)

You'll also find it VERY noisy and annoying without any backbox too.
It was actually very soot free..... But then the engine reconditioned on and has only done around 28K



Also, the noisier, the better. I like to see it as a safety feature
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post #6 of 18 (permalink) Old 26-11-2013, 09:57
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Also, the cat is quite valuable and you've just destroyed it?!
Depends The cat that he has just cut open looks like a after market one that scrap yards only give you 1 for.
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post #7 of 18 (permalink) Old 26-11-2013, 10:39 Thread Starter
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Depends The cat that he has just cut open looks like a after market one that scrap yards only give you 1 for.
As far as I am awear, it's what came on the car originally. But who knows.


Either way, it looked stupidly restricting
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post #8 of 18 (permalink) Old 26-11-2013, 13:23
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It's a diesel. I know the internals are valuable, but I don't have the time to weigh it in. I did it this way to still be relatively MOT friendly.
Maybe, but i don't know any diesel owner that has had a problem with the MOT yet. It technically needs to be there but my MOT place certainly don't care very much.
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post #9 of 18 (permalink) Old 26-11-2013, 13:30 Thread Starter
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If it looks the part I'm happy, if it's nice n noisy then I'm happyier still
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post #10 of 18 (permalink) Old 26-11-2013, 14:37
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It'll look the part except for the suspicious looking weld on one side
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post #11 of 18 (permalink) Old 27-11-2013, 13:38
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You don't need a CAT for MOT's on a diesel.
my ZR has passed 2 years running with a de-cat pipe on.

I even gave the email saved some were from VOSA/DVLA stating that you don't need it
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post #12 of 18 (permalink) Old 27-11-2013, 22:29 Thread Starter
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Almost All back together now =D sounds rather throaty =P

In typical northan style, it's bodged to buggery XD but that's because it's not complete yet and is currently held up at the back with..... A chain XD



Just need to sort out the final part of it now

Also, due to the cold weather and me not using the car this week as I use a work van, I had to jump start the old girl

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post #13 of 18 (permalink) Old 27-11-2013, 22:49
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Post up a video of the sound then!
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post #14 of 18 (permalink) Old 28-11-2013, 06:41
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Zaust

You get the chain from Rimmer's.....
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post #15 of 18 (permalink) Old 28-11-2013, 12:45
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Did you cut the flap on the cat at the top?

I would of, that way MOT tester cant see the welds, most are ok but some are funny about it, we all know it only applies to petrols but some testers just like to be assholes.

Lad I know took his ZR TD with gutted cat for MOT and the tester tapped the cat with a bar and said "its empty mate" and failed it...
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post #16 of 18 (permalink) Old 06-12-2013, 16:16
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Quote:
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Did you cut the flap on the cat at the top?

I would of, that way MOT tester cant see the welds, most are ok but some are funny about it, we all know it only applies to petrols but some testers just like to be assholes.

Lad I know took his ZR TD with gutted cat for MOT and the tester tapped the cat with a bar and said "its empty mate" and failed it...
He should have appealed as diesels DO NOT need a catalytic converter for MOT's!
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post #17 of 18 (permalink) Old 06-12-2013, 19:21
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Originally Posted by Freedrider View Post
He should have appealed as diesels DO NOT need a catalytic converter for MOT's!
Not sure that's right. although they will normally pass, the car should have all emissions equipment it left the factory with..
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post #18 of 18 (permalink) Old 06-12-2013, 19:32
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even the DVLA have said diesels do not need them - it only applies to petrols
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