Quote:
Originally Posted by East87
To the OP, if this is your first "engine" mod, make sure you have at least $1000 budgeted for a gear install just in case things go wrong. I've heard on these forums and from various Mustang aficionado friends that (4.10) gears are one of the most dramatic improvements you can make to a stock (N/A) engine.
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I have been doing a lot of research on the 4.10's also and i finally said screw highway and just do it. Now i need my funds that were spent in christmas
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However, I would have to STRONGLY advice you to get a cold air intake / tuner combo first. You can find a used one here on the forums for around 400-450$ and it will add easily 25-30 hp at the wheels. Not to mention the tuner can change other things on the cars computer such as throttle lag and the rev limiter. It was my first mod and the best one for sure.