I came across this on a Audi forum.
http://www.audiforums.com/m_693578/mpage_1/key_/tm.htm
Here's the text from the post:

"Hey guys, I've got a 98 1.8T. I've had a k04 and chip for a while and wanted to get more performance. I was recommended to port and polish the intake and exhaust. We found out they used abrasive material to do it like gritty sand. So I got with my friend that tunes Hondas and we decided to try it ourselves. We got a bag of sandblasting sand and hooked up into the intake and started the car. We had to hold the gas so it would run. He wanted to let the engine suck in the sand through the intake so it would port it out and then push it out the ehxaust so it would port the exhaust manifold.
I was worried that it might cause problems but he figured it'd be OK as long as we didn't make boost and it get sucked in the turbo. After running the car and letting it suck in sand we got about half way through a 25 lb bag. The check engine light was on and the engine was bucking and kicking and sounding really weird. We stopped and hooked the car back up normal and took off the sand supply. We tried to start it again and it was really hard. Once started it couldn't idle and kept making weird noises. We took it out and drove it and it started to make scraping and knocking noises.
Help! Can anyone tell me what to do! My buddy only does Hondas so he doesn't know much about Audis."

Various versions of that little fiction story circulate through the different car forums every once in a while, with a different vehicle filled in for the target audience.
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-------Robert, '93 940t, '90 240 wagon, '84 240 diesel (she's sick) , '80 245 diesel, '86 740 GLE turbo diesel, '92 Ford F350 diesel dually

What a moron, he used the wrong sand! Perhaps if he used 50Lbs it would solve his problems! Dan

:)

I'm hoping it's made up... but then again. You can pull your air filter for greater throughput and ostensibly an extra hp or two - but there's no tradeoff, right? Right?

Sigh.

hahahahaha, what an idiot. Talk about trying the cheapest way to do something. That engine and turbo are f*cked. I mean was he trying to port out the cylinders too hahaha. And doesn't he know that all intake air goes through the turbo???!?!?!

I bet our redblocks would have held up though right!

that is like the darwin award for cars right there lol.

After reading through the forum, it is all a big joke, but very, very funny either way!

Yeah... it's a joke.... but it makes you wonder if it's at least in part from fact. I betcha some ricer Honda tuner boy somewhere has done this. :)

-Ryan
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Athens, Ohio
1987 245 DL 314k, dog-mobile
1990 245 DL 134k M47, E-codes, GT Sway Bars
1991 745 GL 295k, Regina, 23/21mm turbo sway bars
Buckeye Volvo Club

That is awesome, some of their responses are so funny!!