Need For Speed ProStreet

Need For Speed ProStreet

50 Achievements

1,000

Xbox 360
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Performance Upgrade

Performance Upgrade

Modify a Tier 1 car into a Tier 3 car. Brought to you by K&N – The Original High-Flow Air Filter

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How to unlock the Performance Upgrade achievement in Need For Speed ProStreet - Definitive Guide

First off buy a Nissan 240 SX and set it to Drag mode then buy a level 2 engine for it and you'll get the achievement
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26 Jun 2009 11:18

4 Comments
nice! it worked for me!
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By Stankami on 22 Jul 2009 02:20
also unlocked horsepower challenge achievement.
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By XxjdooksxX on 01 Aug 2010 02:34
Thanks for the solution, worked excellently! :D
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By You So Shady on 06 Aug 2011 18:54
yes, both performance & HP upgrades popped
thx
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By DuBear61 on 12 Dec 2011 23:56
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