Xb9 03 fuel injector

[Race]

I would like to put bigger injectors in my 03 xb9. Where can I find them? Do they cross reference to anything in a car? I know they are different from 04+. I have searched the web for 2 days and have nothing. Currently I have Siemens injectors with 103501 on them. I can't even find a cross reference to any other make to have a base.
Thanks

 

[buellxb9rs]

What motor mods have you done to require bigger injectors? There are larger ones you can use but its only ecessary for big motor mods and then you will need a remap as well

 

[Theycallmecrash]

The answer you seek isnt here.

But curious, why do you want bigger injectors?

 

[buellxb9rs]

Siemens

Not positive on whether they fit the 03 as i think the 03 may be longer?

 

[Race]

Buellxb9rs, I saw those, they look more 04+ then 03. 03 are longer. Are you running them?

The mods I have I know I'm into remap. I don't want to stress stock injectors too much. And I figured if I did need to replace for whatever reason might as well put in bigger ones.

Thanks

 

[buellxb9rs]

i swapped my throttlebody out to an xb12 and also the headers, did a remap and it's crazy the difference in the bike and I'm not even done mapping yet. I've thought about putting bigger injectors, not because it's necessary for my setup but just because the injectors would be putting out the same amount of fuel faster which to me would be better due to the single throttlebody design

 

[mrlogix]

careful, you'll lose smooth throttle control in town...

 

[buellxb9rs]

With what? The injectors or throttlebody/headers?

 

[Race]

Don't think your going to lose smooth throttle control in town with injectors. How many mustangs run bigger injectors. Same with intake, you will lose a tiny bit, but are you really going to notice? it's mostly tuning.