to decat or not to decat?
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to decat or not to decat?
evening all,
fitted my new ninja 2 cat back today and i must admit its not as loud as i expected or hoped for! (car previously had a prodrive backbox on),
anyways just a quick question to all you knowledgable folk, thinking of getting rid of my second cat as iv been told the car should still pass the mot with the front one left in, would there be an improvement to the sound and noise level of the car by ditching the 2nd cat?
cheers neale
fitted my new ninja 2 cat back today and i must admit its not as loud as i expected or hoped for! (car previously had a prodrive backbox on),
anyways just a quick question to all you knowledgable folk, thinking of getting rid of my second cat as iv been told the car should still pass the mot with the front one left in, would there be an improvement to the sound and noise level of the car by ditching the 2nd cat?
cheers neale
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its an 05 sti blobeye mate, just weighing up the options of removing the 1st or the 2nd cat, unsure if it would pass emissions test with just the 2nd cat left in? any ideas?
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The only thing I think you will have to bear in mind is if you take the first cat out you may need a remap. Not sure for definite but you may have to.
If you just remove the second my Hawk didn't need a map and ran great.
Sorry cant be any more help than that. I am sure there are plenty who may know more.
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thanks for advice mate
cars going in for a remap once iv got hold of an uprated fuel pump and decided on the what to do with the cats anyways,
any body else any ideas?
cars going in for a remap once iv got hold of an uprated fuel pump and decided on the what to do with the cats anyways,
any body else any ideas?
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removing the second cat, and keeping the first - pass MOT
removing the first cat, and keeping the second - Fail MOT
on my WR1, they have sports cat first and decat second as standard. think this is the absolute minimum for passing MOT
removing the first cat, and keeping the second - Fail MOT
on my WR1, they have sports cat first and decat second as standard. think this is the absolute minimum for passing MOT
Last edited by Loco; 28 March 2011 at 07:49 PM.
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Just a thought - has it still got the resonated section in?
Makes it bark a bit better when you remove that section.
http://www.youtube.com/watch?v=kxwRpkTi-AI
no cats and no resonated section..
Makes it bark a bit better when you remove that section.
http://www.youtube.com/watch?v=kxwRpkTi-AI
no cats and no resonated section..
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if your going complete decat, you will need to replace front one for MOT (on STI's). however, i believe that you don't need a remap every time you do this. get it remapped for decat, then at MOT, swap exhausts, and drive off boost. should be fine
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Its basically a straight through pipe with a heat shield around it. i was going to use it with the prodrive down pipe but had already purchased a H&S 2nd pipe and none res center section.
I'm near the Wakefield side of Leeds if you fancy a drive over for a look?
I'm near the Wakefield side of Leeds if you fancy a drive over for a look?
#22
I work evenings so if you can get over the first part of the day that would be great if not pm me your number and we can sort something out.
(ps my missus steals the computer for FB also arggg!!!)
(ps my missus steals the computer for FB also arggg!!!)
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lol, i can come over before lunch mate no problems, im on leave this week anyways. as long as its just a straight through pipe with no silencers/resonators il take it mate!
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