MY'01 Jap vs UK exhaust differences
19 January 2002, 06:48 PM
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Peeps,
It would appear that the Jap cars have a three piece exhaust system, and the Euro WRX's have a four piece (downpipe, baffle pipe, centre CAT and back box).
This potentially will cause probs with fitting Jap spec exhaust unless they are made specifically for the Euro WRX.
Assuming all the mounts are in the right pace for the back box (which I have confirmed) and the decat centre (tbc - tomorrow), then all you will need is a custom link pipe to replace the baffle pipe that connects to the downpipe.
I'll keep you posted, but I hoping to work with someone over the next couple of weeks to sort this out (wish I didn't have to work - hence a delay).
I'm hoping to confirm with the manufacturer that they only make 1 version of the exhaust in question, before proceeding, this should be confirmed on Monday.
If anyone else is experiencing the same, and would like to know how I get on drop me a line.
Rgds, Alex
[Edited by DrEvil - 1/19/2002 6:49:22 PM]
It would appear that the Jap cars have a three piece exhaust system, and the Euro WRX's have a four piece (downpipe, baffle pipe, centre CAT and back box).
This potentially will cause probs with fitting Jap spec exhaust unless they are made specifically for the Euro WRX.
Assuming all the mounts are in the right pace for the back box (which I have confirmed) and the decat centre (tbc - tomorrow), then all you will need is a custom link pipe to replace the baffle pipe that connects to the downpipe.
I'll keep you posted, but I hoping to work with someone over the next couple of weeks to sort this out (wish I didn't have to work - hence a delay).
I'm hoping to confirm with the manufacturer that they only make 1 version of the exhaust in question, before proceeding, this should be confirmed on Monday.
If anyone else is experiencing the same, and would like to know how I get on drop me a line.
Rgds, Alex
[Edited by DrEvil - 1/19/2002 6:49:22 PM]
20 January 2002, 01:03 PM
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Right guys, this is what I know so far, I've layed the OEM system (last two pieces) out on the floor along side the HKS system and this is what I've found (facts):
- the HKS Ti Tip Hyper Muffler system that we have is approx 4"s too long to connect to the baffle pipe.
- the baffle pipe is 24"s long and connects to the downpipe.
- the HKS backbox hangs perfectly on the car (I've tested this).
- comparing the mount points on the decat pipe against the OEM cat pipe, they look to be in exactly the same places (note the backboxes were used in the comparison to make sure all is well).
- the HKS backbox has a shorter pipe than the OEM bb, so will not fit on the OEM cat pipe (pointless anyway, but just so you know). The HKS centre is slightly longer from the mount point back to compensate for this.
Summary - there is no reason why the HKS shouldn't fit assuming a suitable replacement for the baffle box can be constructed!
And... I have already spoken to a supplier and they have said that as long as the centre mounts OK, they can easily make up a replacement for the baffle pipe, the best way is for me to go to them and it to be built on the car. Soo, I have to sort out some time off in the next week (most likely monday week, hopefully, depends on the suppliers commitments).
I have taken pictures of the systems layed out and but have no means to upload them for you to view (suggestions?).
Now, I need to confirm with HKS that they only make ONE version of the of this system for the MY'01 (Jap or otherwise). If yes, then it is safe to say that the downpipe on the Jap cars is approx 20"s longer than the UK dp.
After which i will make arrangements for the custom baffle pipe replacement to be made up, and confirm (via this thread) which date it will be being done on.
Anyone that is interested in have a copy of this solution, let me know (via adelasalle@hotmail.com).
Rgds, Alex
PS...
Euro (well a UK) WRX STi - I've physically checked under one of these today, and at first glance it is using the SAME system as the WRX Type UK, hence you will have the same problem with these.
[Edited by DrEvil - 1/20/2002 1:05:44 PM]
- the HKS Ti Tip Hyper Muffler system that we have is approx 4"s too long to connect to the baffle pipe.
- the baffle pipe is 24"s long and connects to the downpipe.
- the HKS backbox hangs perfectly on the car (I've tested this).
- comparing the mount points on the decat pipe against the OEM cat pipe, they look to be in exactly the same places (note the backboxes were used in the comparison to make sure all is well).
- the HKS backbox has a shorter pipe than the OEM bb, so will not fit on the OEM cat pipe (pointless anyway, but just so you know). The HKS centre is slightly longer from the mount point back to compensate for this.
Summary - there is no reason why the HKS shouldn't fit assuming a suitable replacement for the baffle box can be constructed!
And... I have already spoken to a supplier and they have said that as long as the centre mounts OK, they can easily make up a replacement for the baffle pipe, the best way is for me to go to them and it to be built on the car. Soo, I have to sort out some time off in the next week (most likely monday week, hopefully, depends on the suppliers commitments).
I have taken pictures of the systems layed out and but have no means to upload them for you to view (suggestions?).
Now, I need to confirm with HKS that they only make ONE version of the of this system for the MY'01 (Jap or otherwise). If yes, then it is safe to say that the downpipe on the Jap cars is approx 20"s longer than the UK dp.
After which i will make arrangements for the custom baffle pipe replacement to be made up, and confirm (via this thread) which date it will be being done on.
Anyone that is interested in have a copy of this solution, let me know (via adelasalle@hotmail.com).
Rgds, Alex
PS...
Euro (well a UK) WRX STi - I've physically checked under one of these today, and at first glance it is using the SAME system as the WRX Type UK, hence you will have the same problem with these.
[Edited by DrEvil - 1/20/2002 1:05:44 PM]
20 January 2002, 01:34 PM
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Scott - re STi 7, nope didn't get to today as one the MDs decided to take it home yesterday 
But I got to look over a customer's car to see the differences.
But I got to look over a customer's car to see the differences.
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20 January 2002, 02:39 PM
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Alex
Nice to see your using your house and not the garage to take pictures of the exhausts
Sorry to be thick but what the hell is that chamber above the HKS exhaust?
Thanks
Nathan..
Nice to see your using your house and not the garage to take pictures of the exhausts
Sorry to be thick but what the hell is that chamber above the HKS exhaust?
Thanks
Nathan..
20 January 2002, 03:38 PM
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Alex
Looks like I will have the same problem
What length is the centre pipe so we can check we have all got the same.
I know I am clutching at straws but it may be there are 2. One for UK and one for Jap spec.
Well lets hope so as easiest solution.
All the best
Pete
Looks like I will have the same problem
What length is the centre pipe so we can check we have all got the same.
I know I am clutching at straws but it may be there are 2. One for UK and one for Jap spec.
Well lets hope so as easiest solution.
All the best
Pete
20 January 2002, 03:47 PM
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Alex and I compared centre section pipes and found them to be the same.
Mine measures around 58 inches, a quick measurement so forgive the odd quarter of an inch.
On the HKS muffler book you get with all the bolts and pieces there are two codes the first is GH-GDB in in the box at the bottom 3106-SF008VTU.
If this is what is being shipped by HKS as an MY01 part, then our various suppliers can't be blamed.
Mark
Mine measures around 58 inches, a quick measurement so forgive the odd quarter of an inch.
On the HKS muffler book you get with all the bolts and pieces there are two codes the first is GH-GDB in in the box at the bottom 3106-SF008VTU.
If this is what is being shipped by HKS as an MY01 part, then our various suppliers can't be blamed.
Mark
21 January 2002, 08:25 AM
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Nathan
That chamber is a resonator - certainly an unusual design, and it explains why the HKS exhausts often hang so low!
Alex
Good luck in getting your custom midpipe made up.
Duncan
That chamber is a resonator - certainly an unusual design, and it explains why the HKS exhausts often hang so low!
Alex
Good luck in getting your custom midpipe made up.
Duncan
21 January 2002, 10:06 AM
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I own a 98MY UK car, and my HKS Hiper backbox and de-cat centre, fits perfectly without any modifications. I think they may have different models based on MY (as I was asked for the MY when I bought the system). Either that, or for some reason, the Ti Hiper has different measurements to the Hiper?!?!?!?
Good luck Alex. Let me know.
Good luck Alex. Let me know.
21 January 2002, 10:20 AM
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This is fun isn't it chaps!
I've not been able to confirm yet that HKS only make one system for the MY'01 per design hence the Jap / Euro aspect being the issue... watch this space, I'll post as soon as i have.
Rgds, Alex
Maffa - shut it tart
[Edited by DrEvil - 1/21/2002 10:29:56 AM]
21 January 2002, 12:28 PM
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Confirmed, HKS make only one version of the exhaust, it fits the Jap cars, hence won't fit ours. They are being very helpful currently.
More to follow soon, there will be a solution,
Rgds, Alex
[Edited by DrEvil - 1/21/2002 12:45:53 PM]
More to follow soon, there will be a solution,
Rgds, Alex
[Edited by DrEvil - 1/21/2002 12:45:53 PM]
21 January 2002, 01:11 PM
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Update
I've spoken again to a manufacturer, they will be getting to back to me to confirm a date hopefully this week, for me to visit and an adaptor be made up (and cloned for PeteUK300, Jason H and MATTel once the design is finalised - they will want your money prior to this, so I'll send you details of who to speak to).
So if any others have bought from any suppliers recently and are interested in an adaptor, let me know.
Rgds, Alex
I've spoken again to a manufacturer, they will be getting to back to me to confirm a date hopefully this week, for me to visit and an adaptor be made up (and cloned for PeteUK300, Jason H and MATTel once the design is finalised - they will want your money prior to this, so I'll send you details of who to speak to).
So if any others have bought from any suppliers recently and are interested in an adaptor, let me know.
Rgds, Alex
21 January 2002, 02:36 PM
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POC - Things you can do - Keep grinning when you turn on the ignition? Thanks again for not rubbing it in at all on the RR day! I mean if you had sat there revving while I was next your car... it would have been cruel!
Alex - Thanks for sorting all this out. (Nice socks - sorry couldn't resist)
MAFFA - You're only jealous!
Thanks again for not rubbing it in at all on the RR day! I mean if you had sat there revving while I was next your car... it would have been cruel! Alex - Thanks for sorting all this out. (Nice socks - sorry couldn't resist
)MAFFA - You're only jealous!
21 January 2002, 02:41 PM
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Me? Rev my engine? with my sexy new exhaust - with MY reputation?
Hope you boys get this sorted out swiftly - let me know if there is anything I can do to help....
Cheers
Paul
Hope you boys get this sorted out swiftly - let me know if there is anything I can do to help....
Cheers
Paul
21 January 2002, 02:58 PM
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Cheers Paul.. reckon we're are only dayz away from a complete solution
MATTeL - yeah yeah... I can change my socks but you'll always be ginger!
Alex
MATTeL - yeah yeah... I can change my socks but you'll always be ginger!
Alex
21 January 2002, 03:44 PM
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A solution should be in production later this week thanks to one of the HKS suppliers in the UK... I've emailed you three (PeterUK300, Jason H and MATTeL).
Rgds, Alex
Rgds, Alex
21 January 2002, 10:16 PM
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Hi Peeps,
Ave an STi V7 and i have the HKS Supper Dragger TT exhaust, tis exactly as Alex has shown, ordered a down pipe from SS (new age dont fit!!) sent it back and iam awating another (old style) downpipe!!
Soundz the Dogs B*ll*cks!!
Jonno.
Ave an STi V7 and i have the HKS Supper Dragger TT exhaust, tis exactly as Alex has shown, ordered a down pipe from SS (new age dont fit!!) sent it back and iam awating another (old style) downpipe!!
Soundz the Dogs B*ll*cks!!
Jonno.
22 January 2002, 12:52 PM
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Jonno - Thanks for the info matey, I spoke to TopCat on Saturday, and asked him to mention this to you.
Jason - good news init, my neighbours won't know whats hit them
Jason - good news init, my neighbours won't know whats hit them