DieHardDonkey

i cant decide what will be best for my old impreza sport. do i fabricate a straight through pipe where the old cats are or do i just buy a sports cat? iv been looking at cobrasport sportscats, does anyone know if they are good quality? what sort of restriction will i get by fitting a sports cat and will a decat simply be too loud?
any suggestions would be much appreciates.

dark_angel

My mrs has a cobra sport decat section on hers - http://www.cobrasport.com/index.php/...-cat-pipe.html

It's not that loud but you will need a "friendly" mot tester though.

Andy

DieHardDonkey

thanks. did it make a decernable change in exhaust note at all?

dark_angel

Sorry can't remember as it's been a while.

Sorry, mate.

Andy.

romford-boy

I've got a PPP sports cat with an Afterburner back box - that's pretty damn loud but sails through the mot.

Hotrodder

I had a cobra system and sportscat . Wasn't impressed with either. The Eml light on most of the time, mot tests were scraped through after having to rev car for twenty mins to get hot and the main support on the sport cat fractured .
I bought a full hayward and Scott system on my new blob eye and it's superb.

CREWJ

I have a sports cat on mine. It's certainly louder than with the cat and it passes the MOT with ease.

scoobyJim2

^^ +1 for hayward & scott systems

DieHardDonkey

thanks for the advice people i think im gunna go for the hayward and scott option. if its too loud i can always find a quieter back can.

scoobyJim2

I've got the scoobyworld racebox tailpipe im sure its made by hayward & scott too. They also make the ninja & afterburner (I used to have the afterburner,which is loud) but the racebox is so much more subtle but still nice on throttle! I would recommend this if you want a nice sound that is not too loud on tick over.

scoobyJim2

I've got the scoobyworld racebox tailpipe im sure its made by hayward & scott too. They also make the ninja & afterburner (I used to have the afterburner,which is loud) but the racebox is so much more subtle but still nice on throttle! I would recommend this if you want a nice sound that is not too loud on tick over.

Hotrodder

You can ask hayward and Scott to do you a quiet back box. That's what I got and it's just right.
Sounds and performs 100% better than the cobra system on my previous wagon.

yammer5

I'd be wary of a full de-cat, I had an issue with my down pipe (or up pipe I can't remember) anyway I ended up getting a straight through fitted and the mid section and back box were already changed when I bought the car, so now it passes an mot on everything but the emissions, so it's been sitting on my drive for a year
I'm now just replacing the battery because it died and am having to save up for a sports cat or a replacement to get it to pass.

Snooky

I had a custom exhaust made from manifold back! Loud as you like or quiet as you like! On my sport wagon! Haven't come to a MOT yet but just have to find friendly person!! It does chuck on engine light most days which is annoying but have a reader to give it a check anyway!

scoobyJim2

You need a remap by the sound of it,did they refit o2 sensors in new exhaust?

BrownPantsRacing

iTrader: (6)

I have a cobra sports cat downpipe on my 06 WRX. No others & passes MOT at Subaru garage every year no problems!

scoobyJim2

Have you tried putting battery on charge? Also if you can't find a friendly tester then im 90% sure if you get yourself the centre cat that goes after downpipe/cat it will still pass mot with just this cat and is cheaper to buy and easy to fit and remove after

Snooky

Can you remap a sport?just thought it was do it and lump it! Yeah they replaced the sensors and drilled them or fitted them back in!!

BrownPantsRacing

iTrader: (6)

You can remap anything with an ECU.

romford-boy

You mean a sports cat? Not a case of 'can' you remap it, but you 'must' remap it.

scoobyJim2

He's car is a sport model (non turbo I guess)

scoobyJim2

If it has an ecu you can. Just not massive gains without a turbo

Snooky

Mines a non turbo!! Chug along wagon!

Can't afford the turbos just yet! Lost job,illnesses so the trusty old sport is staying for a while!! Will have to dig around now to get it remapped!

Ta

DieHardDonkey

i gotta admit i love my sport, its old and has a few minor problems that iv been slowly sorting out but it sounds the part, it handles way better than my old fiesta and puts a smile on my face every tme i mash my foot into the carpet. going for afterburner decat pipes from scoobyworld, if the noise does my head in too much il get a quiter back can and obviously a remap as itl probly run like a sick pig after iv just lost all its back pressure.

Mustoe91

iTrader: (2)

My blob has a japspeed system on it and a sports cat on and sailed through the last mot can't fault it

Snooky

I am surprised mine runs well without remap! The odd pop out the back is always a laugh! Had mine made in 1 piece stainless steel! Infinity exhausts! The fit and make what u ask while u wait!
I can't fault the sport, have t got stuck, goes ok once wound up haha and sticks to the road!!

DieHardDonkey

so... iv fitted the hayward and scott decat pipe onto my impreza sport. honestly it was a bit of a ballache to fit. rolling round on the floor, bits of griding and a spot of welding but its on anyway. i gotta say it is abit loud but has a better note now so am toying with the idea of refitting my prodrive back box on and see if that takes some of the tinnyness out of it. also its running fine even after also fitting cold air induction kit so thats a bonus .