Anyone know where to buy a digital tool or some type of gadget that can measure the amount air flow from something like an exhaust tail pipe?

 

Try this search list...

 

We use one of these at work. http://www.extech.com/instrument/cat...w/airflow.html, the one we have is the heavy duty model. They not only measure airflow (in different units), but temp as well.

 

go to hercules industries in denver they got them

 

Thanks everyone. I just bought a $50 "Anemometer" on eBay.

I just wanted something cheap that hopefully might show/prove a difference after installing an aftermarket muffler....particularly OEM versus Flowmaster.
If it initially works, then I'll be doing before and after tests at 0-1,000~ RPM's on two different vehicles including my 4runner. I'll post results when i get-r-done.