ABS Delete Kit Fitting Questions Before I Take the Plunge
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Scooby Newbie
Joined: May 2026
Posts: 6
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ABS Delete Kit Fitting Questions Before I Take the Plunge
Hi all,
I have been considering fitting an ABS delete kit to my blobeye WRX for a while now and finally think I am ready to go ahead. I have seen the Pro-Line Motorsport kit mentioned a fair bit on here and it seems well regarded. However, before I commit I want to make sure I am not going to mess anything up.
My main question is whether I need a bias valve alongside the delete kit or can I get away without one for a road car? I do occasional track days but it is mostly a daily. Also has anyone had issues with brake balance after fitting?
Any tips from those who have already done this would be brilliant.
I have been considering fitting an ABS delete kit to my blobeye WRX for a while now and finally think I am ready to go ahead. I have seen the Pro-Line Motorsport kit mentioned a fair bit on here and it seems well regarded. However, before I commit I want to make sure I am not going to mess anything up.
My main question is whether I need a bias valve alongside the delete kit or can I get away without one for a road car? I do occasional track days but it is mostly a daily. Also has anyone had issues with brake balance after fitting?
Any tips from those who have already done this would be brilliant.
Thread Starter
Scooby Newbie
Joined: May 2026
Posts: 6
Likes: 0
Hi all,
I have been considering fitting an ABS delete kit to my blobeye WRX for a while now and finally think I am ready to go ahead. I have seen the Pro-Line Motorsport kit mentioned a fair bit on here and it seems well regarded. However, before I commit I want to make sure I am not going to mess anything up.
My main question is whether I need a bias valve alongside the delete kit or can I get away without one for a road car? I have also been looking into how the 2008 cummins delete kit handles similar removal setups for reference. I do occasional track days but it is mostly a daily. Also has anyone had issues with brake balance after fitting?
Any tips from those who have already done this would be brilliant.
I have been considering fitting an ABS delete kit to my blobeye WRX for a while now and finally think I am ready to go ahead. I have seen the Pro-Line Motorsport kit mentioned a fair bit on here and it seems well regarded. However, before I commit I want to make sure I am not going to mess anything up.
My main question is whether I need a bias valve alongside the delete kit or can I get away without one for a road car? I have also been looking into how the 2008 cummins delete kit handles similar removal setups for reference. I do occasional track days but it is mostly a daily. Also has anyone had issues with brake balance after fitting?
Any tips from those who have already done this would be brilliant.
I did go down this route including removing the standard bias system. Did end up needing an aftermarket bias valve. Have since fitted the ABS module from a BMW (Mk60e5 unit) which way outperforms the original Subaru unit and handles bias much better on it's own.
Scooby Regular
Joined: May 2000
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bomeliv is a spammer -- they edit posts to include spam links :: just have a look at ALL their posts - they have 'hidden' spam links
They should explain to the Forum just why they are editing posts from other users.......
They should explain to the Forum just why they are editing posts from other users.......
Last edited by albob; May 21, 2026 at 10:27 AM.
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