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I’m not sure where to ‘chip’ my ecu for my 03’ Passat, or where to get one for that matter, recently heard about chipping my car so I’m not sure how it’s done. any answers will be appreciated. Just trying to get the most hp and torque possible for my first mod :)
 

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Also, APR, Revo, unitronic, etc. Reflect is best bang for the buck though. Had a chipped ECU for my old B5 from them. Pulled nice and strong.
 
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Also, APR, Revo, unitronic, etc. Reflect is best bang for the buck though. Had a chipped ECU for my old B5 from them. Pulled nice and strong.
Thanks I appreciate the help, how much hp you get off it? If you know.
 

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It was milder than what APR put out, I think. If I had to guess, 35hp or so at least. About 13psi
 
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Technically, it's a stage 1 if you want to use that terminology. Just an upgraded diverter valve is needed. 710N or aftermarket like a forge 007, apr R1, etc. No BOVs.
 
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