dazzatop 0 Posted March 6, 2007 Report Share Posted March 6, 2007 Alright, ive a k&n fitted and a cat back magnex, what can i expect decatting???? performance , consumption, is it a really noticable difference, and what problems may i encounter doing it thanx! Link to post Share on other sites
jaysVR6 2 Posted March 6, 2007 Report Share Posted March 6, 2007 You'll need to know your MOT inspector or you'll be swapping the cat back on every MOT. Other than that, not much!5hp maybe 10hp if your lucky, thats with the mods you have as well. (10's probably a little optomistic!) Link to post Share on other sites
poultonjoe 0 Posted March 6, 2007 Report Share Posted March 6, 2007 don't do it. I went back to cat as it pissed me off not being able to speak to anyone with the revs over 2.5k or WOT without shouting. Plus when the engine is back in i might actually be able to hear the charger! Link to post Share on other sites
gavinvr6 0 Posted March 6, 2007 Report Share Posted March 6, 2007 my car is a 93 k, is this early enough to go without a cat? what is/was the propper cut off date for cars that have to have a cat? ive previously owned a 93 k mondeo (sorry) and that never had/needed one, would it be worth decatting? Link to post Share on other sites
petervr6 0 Posted March 6, 2007 Report Share Posted March 6, 2007 should be 1992 up when a cat stabilisation test is carryed out on the car. Link to post Share on other sites
gavinvr6 0 Posted March 6, 2007 Report Share Posted March 6, 2007 hmmm oh ok, thanks was just a little confused as i previously said my 93 ford never had nor needed one. will have to delv into this as ive read somewhere that upto 92 doesnt need one but from 95 do, it completely left out 93 and 94 Link to post Share on other sites
Eat this 2 Posted March 6, 2007 Report Share Posted March 6, 2007 don't do it. I went back to cat as it pissed me off not being able to speak to anyone with the revs over 2.5k or WOT without shouting. Plus when the engine is back in i might actually be able to hear the charger! if you mean supercharger youll hear it just fine lol my old exhaust was just a backox and an empty pipe from the exhaust manifold i could hear the charger perfectly hehe Link to post Share on other sites
thegoth 5 Posted March 6, 2007 Report Share Posted March 6, 2007 hmmm oh ok' date=' thanks was just a little confused as i previously said my 93 ford never had nor needed one. will have to delv into this as ive read somewhere that upto 92 doesnt need one but from 95 do, it completely left out 93 and 94[/quote']I always thought it came in with the K plate. But that might just be if it was designed to have one, such as the VR6, than the MOT emissions limits are set to expect one but where the makers where lazy ( ford ) the limits would be higher. And by 95 even the lazy companies where expected to fit cats to all their new cars. Dunno! I've got a J so I'm laughing, but then again I havent had it MOT'd since getting the decat. Link to post Share on other sites
Earwig 89 Posted March 6, 2007 Report Share Posted March 6, 2007 Never thought that Catless systems were noisy ?Is it that bad with a De-cat pipe fitted ?Mark. Link to post Share on other sites
jaysVR6 2 Posted March 7, 2007 Report Share Posted March 7, 2007 Never thought that Catless systems were noisy ?Is it that bad with a De-cat pipe fitted ?Mark.Ummm - no. Depends on the exhaust tbh. I've got a straight through Milltek, no probs, just lots of chrger and exhaust scream!! Link to post Share on other sites
FishWick 21 Posted March 7, 2007 Report Share Posted March 7, 2007 Get friendly with a tester and get them stick their probe up a 1.0 Lupo exhaust or something.....or say your car has an engine from a 92 car in it. Removing the cat does make the engine a little more responsive in the midrange, but it won't show much of a gain on the dyno plot. Link to post Share on other sites
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