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Jun 6, 2006 | 12:18 AM

Thread Starter

1st Gear

Joined: May 2006

Posts: 9

question

do you think that putting a 3inch downpipe and exhaust system will improbe performance or the car will lose backpressure (2002 A3 150hp K03 turbo). I have the doubt cause the size of the turbo!

Jun 6, 2006 | 03:38 AM

miked

Senior Member

Joined: May 2005

Posts: 2,042

From:

RE: question

You will lose backpressure. 2.75" is the max you'll wanna go on the stock turbo. Get a borla 2.25" system, its killer and sounds the best of all.

Jun 6, 2006 | 05:27 AM

Thread Starter

1st Gear

Joined: May 2006

Posts: 9

RE: question

isnt the 2.25 to small?

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