ok my friend was under my bonnet other day mentioned my downpipe looked different, might be decatted? but i think i recal him saying there is a lambda sensor going to it?????

am i gonna be in the ****e come mot next week?

 

the cat is massive. Decat will just be a plan old pipe. got any pic's? what car? you might have a centre cat...

G.

 

its a 1995 sti

 

well it will only have one cat on the downpipe. you should be able to see from the top.

 

hmmn well looks like i might not have one then, as looks like no huge cat to me. bugger spose i need to get a exhaust now

 

where are you? you can borrow mine. you can also tell by looking under... you will see a pipe that's not looking standard... a cat downpipe has a metal shield...

G.

 

just done some research, so my car definatly doesnt have a centre cat? if i have got a decat downpipe it seems easier to bolt up a centre cat?

or have i been missunderstanding??

i might just remove the decat and put a cat back on it, i will go outside shortly and have a squiz at it but its cold and im not dressed yet lol (day off)

 

the car won't have a centre cat. i would put a downpipe cat on for the MOT. or find a friendly tester...

 

 

Deffo a de-cat bud.

Rob

 

yep, you would see if you did. it's massive.

If you based in Surrey your welcome to borrow mine.

G.

 

thanks for the kind offer but im 40 odd mins away, are cat downpipes dear sec hand to buy?

are decats worth anything to sell?

ill have to sort somin as it will faile emissions, i have got a good mot bloke but dont think hed pass it for me i

 

You're better off just fitting a centre cat for the MOT, or permanent if you're that concerned

Sight easier than messing with the d/p.

 

a center cat from a impreza i presume?

i havent looked under mine yet for all i know its got one lol

 

it won't have one... unless it was fitted by the last owner.. but why would they do that and take the downpipe out....

 

If your centre is the original OE, you'll need to remove it to see if it's a cat I made the mistake of assuming the 'lump' was a cat but it's a resonator on the STi classics. If there's a mesh across the inlet side of the lump, it's a cat.

 

funny thing is i knew the last owner he from here and he put it in for mot and it failed but not on emissions, i bought it no mot from him in nov and ive only just got round to starting it now, weird as i know he never swapped exhausts etc

 

by any chance anything under here resemble a cat ???

 

center cat on pics

 

really? that would be great if it was

are you sure its not just the resonator box some people have mentioned that looks like a cat?

 

looks like a resonator box to me....my jdm wagon had the same

 

looking at my pics it looks like theres two box's

 

JDM Wagons only have one CAT anyway, that's in the downpipe.

The centre as you say is a resonator.

Rob

 

i havent got a wagon and exhaust was changed the other year my pics are asking if one can be seen , maybe one was put in for the last mot

 

If it's a 1995, does he even need a cat on there? When did the law change to make them compulsory?

 

yes i will have to have a cat for mot

hence my dilema, but im not gonna go buy one if someones already fitted one underneith


surely someone must be able to compare these pics with there own classic exhaust from memory ?

 

It looks like it has a center cat. My decatted classic looks different.

 

You are right thats a resonator box, just checked my old center with original cat, the cat would have been to the right just after the resonator on the top pic but cant be seen, i only saw that pic, the second shows clearly that there are no cat to the left of the resonator.

my bad

 

so whats the other box then? ive got two resonators?

the bottom pick you can see the two box's well just a little bit of the first one lol

 

why dont you just go to a local garage and have an emissions test,they are free and will put your mind at rest