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HELP - Ninja is 4" too short !!
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Old 17 Oct 2005, 08:53 AM   #1 (permalink)
Young Scooby
Join Date: Jul 2005
Location: Andover
Posts: 63
HELP - Ninja is 4" too short !!

Have a JDM MY01 STi and am trying to change the exhaust system. Recently got hold of a Ninja BB and centre and tried to fit it this weekend only the centre is 4 inches too short !!!!!

Had a search on scoobynet and have found one or too references to the fact that the JDM MY01 STi has a different exhaust but not what to do about it. As far as I can see the exhaust is in 3 parts not 4 like the later (UK) cars with no separate cat pipe at the front. It would appear that there is a cat in the downpipe and another (I think) in the centre. Can anyone help answer the following questions.

1. If I change the whole exhaust (ie BB, Centre, Front pipe and down pipe) will this cure the length of pipe issues. I’m assuming that a whole new system will?

2. Can someone measure a classic centre pipe for me and I can see if this is the same as my one on the new age?

Bloody Japanese, why are there so many hidden differences - fitting a new exhaust shouldn’t be this difficult!!!!!!!!!
SIDC Regional Organiser - Hampshire
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Old 17 Oct 2005, 01:53 PM   #2 (permalink)
Obsessed Scooby
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Location: East Herts
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The JDM exhaust systems have the joints at different lengths to the UK cars. I found out when I got one of the first HKS Hyper Ti-Tip systems. HKS were very good and quickly made a short front pipe so it would all fit.

I think you may still have issues unless you get a Jap made exhaust backbox/system or change the complete system including downpipe.

Give someone like HKS a ring or a Subaru specialist like Jap Innovations, Scoobyworld, TSL etc (can't name all there are too many) for advice before shelling out anymore hard earned
All the best

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Old 17 Oct 2005, 07:57 PM   #3 (permalink)
Young Scooby
Join Date: Jul 2005
Location: Andover
Posts: 63
Here is the reply to my request for info to Scoobyworld - very helpful chaps (and quick too)


Your findings are spot on. The Japanese New Age Imprezas have the same
exhaust layout as the old 1993-2000 Imprezas (3 piece). Therefore your Ninja
centre section will not fit as you have found out. The back box should be
fine. The only way to sort this is for you to buy a new centre section
remembering that you need one designed for the older 1993-2000 cars. From us
that would be £94.99 for a unsilenced Afterburner decat centre and £129.99
for a silenced Ninja decat centre pipe. These would be fine with your back
box and standard downpipe. Subsequently if you wanted a downpipe you need to
buy a 1993-2000 downpipe. To further complicate things if your STI has a
twin scroll turbo you need a specially made twin scroll downpipe.

Best Regards
Mike Gamble
Scoobyworld Ltd

Any one have a classic decat centre for sale !!! (only sold one last month as i didn't think i would need it anymore)
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Old 17 Oct 2005, 08:50 PM   #4 (permalink)
Cool Scooby
Join Date: Nov 2004
Posts: 388
Hi Mate,

Depends how quick you want it mate, but I will have a Hayward and Scott De-Cat Centre Section (this is who make ScoobyWorlds exhausts) for sale as soon as I get our new Blitz Nur Spec CTi.

Could be a couple of weeks yet, but there ya go.

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Old 19 Oct 2005, 12:04 AM   #5 (permalink)
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I've got a MY99 Centre Section for sale, has a cat in tho?! ops:
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