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Discussion Starter #1
As the missus takes the car for work she took it in for its mot. When she went to pick it up they said it failed on emissions and followed up with I see its got a performance exhaust on it put the cat bafk in it and bring it back in. As the cat was already in place instead of the mid silencer do you think (a) they seen the tegiwa manifold and thought there's no cat on this and just failed it without testing it or (b) it has genuinely failed? But they have a £10 resit in place. Any input would be appreciated. Ps I'm going to say my mechanic forgot to switch it round when I take it back in and if it fails again I think I'll have to contact tegiwa. Cheers
 

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Where is the CAT, It has to be as close to the engine as possible to get good heat to work. The only suggestion I have is a good ragging before the test is done.
 

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Discussion Starter #6
be a life-saver. Simply 'jack' the car up and switch in the 400CEL cat to pass your MOT. This is also perfect for RACE CARS as it is nescessary to have a cat installed in all MSA race series.** Due to the size of this item you may need to pay extra shipping. Please email to confirm. As stated on tegiwa's site and the reason I bought it
 

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Don't expect decent after sales service from tegiwa, bad enough buying from them in the first place miserable on the phone and just act like they don't want your business. They also copied a well known HKS RSK heatshield and got it wrong, their description points to civinfo forum for fitting instructions lol.

Chances are they saw it was aftermarket and didn't even test it, you would get a failed emissions sheet i assume like you do when it passes.
 

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Something not right there. A 400 cel cat should get you through fine (providing it is properly warmed up of course) I used to pass emmissions with a Milltek 100 cel cat on the Impreza
 

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Discussion Starter #10
Its kind of my first thought here's a young woman and then they seen the manifold and thought no cat so thats a fail. £10 resit. There were no figures on the sheet only fails eg idle and fast idle. The exhaust will be glowing like that Russian comet last month when it goes back in.
 

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無限 Unlimited
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My Tegiwa removeable CAT passed last november didn't need an Italian tuned up either. CO/CO2 readings were fine.
My only issue was they found it hard to hold the revs at 2700rpm (or whatever it is) to get a reading as it bounced around a bit so it went through 2nd time they tried.
However I never removed the mid silencer, instead my CAT is just under my seat.
 

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Premium Member
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Thats a far better place for it imo. Much closer to the exhaust ports.

Look where the OEM item is, right up next the short mani
 

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#darkside
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The Martelious does worry me a little with it being only 200cel however as its right in the same place as OEM it should be ok providing i give it a good rag before hand.

Fingers crossed for you on your next visit! :)
 

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aka Colin
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mine is a 400 cel (not tegiwa) and its further back than the one pictured above and sailed through last year. does need a good 20 minute run before to make sure its nice and hot before handing it over to the testers. they are also stricter here in dublin than in the uk.
 

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Discussion Starter #15
I now found out she drove the car for about three miles from her work to the testersbin a 30 zone all the way and I've seen the mot now too. First test slow idle 0.38 second one fast idle 0.63 which is 3 times over. Well if it fails when its hot then i'm fecked.
 

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Discussion Starter #17
Well if it fails again when hot I'll be contacting tegiwa as it states as I posted above just pop out the mid silencer and put in the cat for peace of mind come mot time.
 

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Can be the tune or other cause. There are cars with stock cats that failed because of other problems like running very rich or very lean afr.
 
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