Cats and Mot time??
#1
Scooby Regular
Thread Starter
iTrader: (1)
Join Date: Sep 2012
Location: South Wales
Posts: 209
Likes: 0
Received 0 Likes
on
0 Posts
Cats and Mot time??
I have a 2004WRX that is remapped to around 270bhp but still has a sports cat downpipe and cat in the up-pipe. With these still in place my mechanic has major trouble putting it thru the mot even when the cat is red hot?? As im thinking of fitting a VF48 and other mods im wondering if it will ever pass an mot again???
Thinking of running it totally decat and having a centre section made with two standard cats for mot time. What does everyone else do???
I thought a car should still pass an mot with just the sports cat but this doesnt seem to be the case with my car
Thinking of running it totally decat and having a centre section made with two standard cats for mot time. What does everyone else do???
I thought a car should still pass an mot with just the sports cat but this doesnt seem to be the case with my car
#3
Scooby Regular
iTrader: (20)
I have a 2004WRX that is remapped to around 270bhp but still has a sports cat downpipe and cat in the up-pipe. With these still in place my mechanic has major trouble putting it thru the mot even when the cat is red hot?? As im thinking of fitting a VF48 and other mods im wondering if it will ever pass an mot again???
Thinking of running it totally decat and having a centre section made with two standard cats for mot time. What does everyone else do???
I thought a car should still pass an mot with just the sports cat but this doesnt seem to be the case with my car
Thinking of running it totally decat and having a centre section made with two standard cats for mot time. What does everyone else do???
I thought a car should still pass an mot with just the sports cat but this doesnt seem to be the case with my car
failing that im not sure how it would affect your car being mapped as a de-cat then doing the test with a sports cat,speak to duncan to clarify if it will be ok
#5
Scooby Regular
Thread Starter
iTrader: (1)
Join Date: Sep 2012
Location: South Wales
Posts: 209
Likes: 0
Received 0 Likes
on
0 Posts
i run a full de-cat with no sports cat and i know a "cough-cough" friendly mot tester,try and find yourself one if you can.they are out there,just think of all the de-catted cars out there
failing that im not sure how it would affect your car being mapped as a de-cat then doing the test with a sports cat,speak to duncan to clarify if it will be ok
failing that im not sure how it would affect your car being mapped as a de-cat then doing the test with a sports cat,speak to duncan to clarify if it will be ok
#6
I have just the one cat in the downpipe. It's a Japspeed 100cell sport cat. mine needs to be 20 what ever it is they measure to pass. When it was in for MOT is was reading 47 even though the car was warm. The MOT man revved and held the revs to about 2500-3000 rpm while the sniffer was up the exhaust. After about 20-30 secs it dropped to 19 and past. It seems these cats cool down quickly if on idle and need a constant rev to heat them enough to work.
#7
Scooby Regular
Join Date: Apr 2012
Location: cambridge
Posts: 37
Likes: 0
Received 0 Likes
on
0 Posts
i just got mine through using a standard UK turbo centre section - no other cats. that's a v2 sti ra running 305/310 or thereabouts with a power fc doing the thinking
went from 0.6%co with full decat to 0.02,
much easier than a downpipe swap and only 140quid off the interwebs for a new one.
went from 0.6%co with full decat to 0.02,
much easier than a downpipe swap and only 140quid off the interwebs for a new one.
Thread
Thread Starter
Forum
Replies
Last Post
Danny0608
Subaru Parts
0
12 September 2015 02:59 PM