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Old 12-25-2010, 09:51 AM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
Join Date: Mar 2008
Posts: 25,236
Mein Auto: 02 BMW 525i M54 auto 130K
Originally Posted by franka View Post
Some may not be the same ones that you sent in.
Hi Frank,
I did read the entire web site but I was still confused a little about matching - only because I wasn't sure if you got ONLY your own injectors back - or if they substituted similarly matched injectors when the need arises.

It was confusing because the FAQ expressly says they don't do "exchanges" but matching wouldn't be possible without substituting one injector for another.

Here's what their FAQ says, verbatim, on exchanges:
Why doesn't WitchHunter Performance offer an injector exchange service?

We only clean our customers injectors, that way you know what you are getting. Some companies buy old used injectors by the truckload, use minimum wage labor to clean the injectors that work and throw the rest away. So you may be getting one with 30K miles and some with 400K on them in the same set. It is common practice for these places to grind off the original part number and give you an injector that flows "close" to your injector.

So, what I gather from this is the following assumption:

- You give them YOUR injectors
- So does another customer, and another, and another
- They clean and test YOUR injectors (and that of the other customers)
- If any of yours need to be "replaced"; they take them from the other customers' injectors

I guess what they do not do is buy injectors in bulk and use them for the matching - but apparently they do use other customers' injectors to substitute when the need for matching arises.

Do I have the basics of "matching" understood yet?

Last edited by bluebee; 12-25-2010 at 09:54 AM.
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