GONZO01

iTrader: (6)

Any difference between a sports cat and de-cat power/performance wise?

scoobymikepic

iTrader: (3)

yea buy a decat, more bhp. but might have issues come mot time. unless you no someone in the now.
cheers scoobymike

silverfox72

iTrader: (7)

De-cat in my opinion. Have had both on mine and the de-cat definitely made the biggest difference to performance.

Steve T

iTrader: (14)

Mine is decatted but I have to fit cat back for M.O.T. Bit of a pain. Steve.

Rob Day

iTrader: (78)

Im completly de-catted, makes for a slightly louder noise too... Is it me or is the spool noise more noticable too?

~As Above for MOT, be prepared or fail.

Rob

ian7675

Do you guys re-fit your own cats or do you get it done at the place that tests your car beforehand?

Steve T

iTrader: (14)

I leave mine with my Subaru specialist and he fits the cat and gets it M.O.T,d for me. Steve.

scoobymikepic

iTrader: (3)

just get very friendiy with mot station . then when the time comes for mot, drive in he'll put probe up your exhaust and test emmissions, job done simples... hope this explains it all.. cheers rob day

PS for whats its worth, my MOT station is very strict, which is what I want as I occasionaly have my wife in the car, but he is very understanding too

scoobymike

Rob Day

iTrader: (78)

Mike although I know what your saying, I dont think its a good idea posting that on a public forum.

Rob

scooby800

iTrader: (1)

+1

wrx fifer

iTrader: (34)

as above and Rob having had both in the past full decat best!! better spool and you can hear it more also, i would agree a little louder

i just refit the downpipe come mot time not too much hassle!! an hour or two a year for on and back off

as for friendly mot stations these are very rare these days as VOSA is all over them best to do it right

Grant

ian7675

What worries me is how will re-fitting the CAT affect the car when you're driving to the MOT station? Would it be okay at slow sensible speeds?

Rob Day

iTrader: (78)

As you are making the exhaust more restrictive by fitting the sports cat (if your mapped on decat) then I would take it easy, keep off boost and make sure the MOT station know what they are MOT'ing. If they are not experienced with Subarus then stay clear or do your homework and educate them... no more knackered diffs!!!!!!

Rob


PS for whats its worth, my MOT station is very strict, which is what I want as I occasionaly have my kids in the car, but he is very understanding too