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post #1 of 3 (permalink) Old 08-02-09, 08:13 PM Thread Starter
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2008 "Roush stage 1" hp increase

I'm going to take it to Sturgis Mustang rally and try the drag race. What is the best way to get the most extra hp for around 500 to 600 dollars?
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post #2 of 3 (permalink) Old 08-04-09, 08:06 PM
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Re: 2008 "Roush stage 1" hp increase

You might be able to put a 50-75 shot of Nitrous Oxide on it for that price.
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post #3 of 3 (permalink) Old 09-07-09, 11:11 PM
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Re: 2008 "Roush stage 1" hp increase

is your mustang a roush stage 1? if so then it should already have a cold air intake and exhaust right? if not buy one or the other or both. if you already have done that buy a SCT tuner. the 2008 makes 300hp stock and around 275rwhp thats just for the base GT. a full exhaust will get you another 20-25hp and a cold air intake will get you about 10-15hp a tuner should get about another 10-15hp. all of that together you should see a gain around 20-25 wheel horse power over stock. if you have done those three mods you should try to get a underdrive pulley set from steeda. those get a gain of 5hp just from better pulleys. if somehow you should have those 4 mods try a nitrous kit but i wouldn't go any higher then a 75 shot. also if you decide to go that route take it to a tuning shop and have them pull 2* timing for a nitrous set up. hope i helped. headers will run you about $300 bucks for mid length, an off raod x-pipe will cost about $140 almost every axle back system is $300-$400 bucks. a tuner is $300 bucks. a nitrous set up is probably about $580 but then you will need tuning and that will cost another $60. if you live in an immesions testing state or whatever buy any set of mid length headers and get a catted x-pipe, those have 2 high flow cats on them and it helps the engine firing order better over the stock h-pipe. if you have stock exhaust an easy mod is just to pull of the stock axle back system.

"horse power gets you there, torque keeps you there"

Last edited by Grant218; 09-07-09 at 11:17 PM. Reason: more ideas
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