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Just got a GIAC stage 1 tune on my 06 gti. I paid to have it dyno'd before and after so I could see the actual numbers, but I didn't need to see numbers to feel the difference. It feels like a new car. I used to get my butt handed to me by my buddies 09 speed3, and now we're dead even in a straight line. But for those who like proof,

pre-tune dyno: hp=184 to the wheels, torque=198 lb/ft
post-tune dyno: hp= 221 to the wheels, torque= 252 lb/ft.

cost me 500 bucks, best investment I have made on my car so far BY FAR.
 

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You got a good file. I remember when I got the perf. pump file. I thought, WOW!
Another $1600, give or take, and you have a dp, intake, and apr pump rebuild.
Then you can get the GIAC HO rail pump file and likely see near 260 whp, and
near 300 ft*lb.

ENJOY...
 
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