is it recomended to get tires with higher speed rate for A4, I have 94H on it right now , thanks

 

94 is a weight rating. How much weight the tire can carry. A 94 rating can carry around 1500lb of weight (this is per tire).

The H is a speed rating. H is good for around 200kmph. So unless you plan on going faster than 200 (I'm not even sure if our Audi's can do that), you should be good.

 

My 02 A4 is bone-stock and I had it up to 200 pretty easily a couple of days ago. I put in a new coil pack and while I was doing that I changed the plugs, cleaned the MAF sensor, and swapped out the air filter for a new one. I wanted to see how much of a difference it made. Pretty substantial, I can hear the turbo spool up much louder now and it climbed to 200 without problem. I think with a little more highway I could have been at 220 pretty easily. The car was perfect, no shudders, no vibrations. It felt like I was at cruising speed, was heavan!

 

According to wikipedia, the top speed for a B7 A4 2.0T FSI Quattro is 237km/h. The B6 top speed is not listed, but I would assume low 230's since the B5 top speed is 231.

 

Good to know. I've never gone that fast. I think my car looks nicer in my Garage than it would at the police impound. LOL

Man, I must be getting old.... I sound like my dad...

 

HA! True. That's what kept me from going any faster...I think 230 km/h is attainable for a stock b6 without much problem. Add a chip, intake, and exhaust and you're laughing.