About to get my 98 wrx tuned at ASG with PFC and just wondering if its worthwhile changing injectors. Currently using stock vers 4 wrx injectors and rails.
Going to see what they recommend for boost.
Currently have a VF-37, headers, tbe etc usual crap.
I understand I can just put sidefeed sti 440s in but will they fit in my fuel rails? Would it be worth putting in 99/00 rails or parallel aftermarket rails? Or better off with different injectors to the 440s?
Thanks for any help..

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Straya

I've got a set of 440 side feeds sitting in later rails you can have for $220.

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Beaten up old 98 Gen 2 Liberty, 13.0, stock V3 STI running gear.
07 Transit motor home
69 VF & 70 VG Valiants needing full restoration
Yamaha Zooma 50cc rocket hopefully going with the Transit.

will later rails need to be modified to fit?
I have read that i can get earlier model sti injectors with a single spray nozzle to fit. But the later 440s have 4 spray nozzles and a different collar so they wont fit.
If later rails will fit without having to destroy something then hell yeh pimpreza i will grab those.

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Straya

99-00 rails will fit 92-96 manifold but not a 97-98 manifold.

Only 440cc with a vf37? Wow!

What injectors do people usually use for 190-220kw?

troy at prospeed racing does 550cc Power Entiprise injectors to suit im pretty sure there about $500

Not too sure if they'll fit mate, they are sitting here on a manifold, about 01 TT Legacy I think. I'll rip the rails off later.
More than welcome to have a look, just PM me.

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Beaten up old 98 Gen 2 Liberty, 13.0, stock V3 STI running gear.
07 Transit motor home
69 VF & 70 VG Valiants needing full restoration
Yamaha Zooma 50cc rocket hopefully going with the Transit.