[quote="ian sibbert"]The problem you have pal is, the actual WRC air injectors are no longer available from Bosch, so the new ones that tuner etc sell are the nearest example currently available, but in the twin format they require the use of a resistor to bring the resitance seen by the ecu back into line. Not a problem, but as a few have said above the cleanest solution is to pick the phone up to Stu or Kenny and order the latest developed single air injector, it will produce the results you expect (as it's new) and its guarenteed to work (unlike some of the e-bay gambles you might come across).

Chances are the later works cars ran a different management system from the one you are using, so apart from astetics there is no reasn to buy a twin set.....

HTH

Ian[/quo

Thanks for that il prob go for the single injector then in that case,just seem to see lots of cars with the twin setup rather than the single.