IS - 1st Gen (2001-2005) Discussion about the IS models up to the 2005 model

How much hp does a short ram intake add?

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Old 05-15-09, 05:49 PM
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Mmarinich
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Default How much hp does a short ram intake add?

Hey guys, I've got an Injen short ram intake w/ header heat shield. Any guess on how much HP it adds? Thanks!
Old 05-15-09, 09:58 PM
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is300chris
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going to say about 5 whp
Old 05-27-09, 01:20 PM
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Bezik777
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Im going to est. 7-8 but you'll be lucky if it dont throw your Cel ...some do some dont ...
Old 05-27-09, 01:22 PM
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llllllllll
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I was told, if you're looking to add HP to your IS don't waste your time and money with bolt-on's because you will not get any significant power gain. Best bet is to save your money and go turbo.

That's just what I was told and it seems like good advice to me.
Old 05-27-09, 01:32 PM
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Bezik777
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Originally Posted by llllllllll
I was told, if you're looking to add HP to your IS don't waste your time and money with bolt-on's because you will not get any significant power gain. Best bet is to save your money and go turbo.

That's just what I was told and it seems like good advice to me.
Turbo is good but you have to factor in what the people wants to do with the car ...money able to spend ..how much power you want..and what they use the car for...
Bolt ons and NA mods are not a waste of money ....

You can easily be around 230RWHP with bolt ons and NA mods...
Old 05-27-09, 06:13 PM
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JRGS400
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My friend have a IS 04, 5 speed with SRT intake,HKS cat back,Toyomoto headers .aluminum fly wheel, act clutch and steal slow, the best choice go BOOST!!!!
Old 05-27-09, 11:14 PM
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Dattt
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HKS doesnt make a cat back for the IS300! and yes N/A bolt on upgrade do not really yield much horsepower but it will increase it by a bit, it really is down to what you believe is worth it spending all that money for no so big gains its up to you
Old 05-27-09, 11:21 PM
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shinbrianj
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srt intake will give you the most, only because with the srt intake + ecu tune
Old 05-28-09, 06:48 AM
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Bezik777
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Originally Posted by shinbrianj
srt intake will give you the most, only because with the srt intake + ecu tune
May give you the most for one mod but not the most for your money...
Old 05-28-09, 08:20 AM
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Euro09
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Originally Posted by Mmarinich
Hey guys, I've got an Injen short ram intake w/ header heat shield. Any guess on how much HP it adds? Thanks!
Ok you have any pics of that ?

Andy
Old 05-28-09, 08:27 PM
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Bezik777
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To above also ecu tune....NO the its a sort of piggy back from SRT and the only reason its needed is due to the intake tubing being 3.5in in diameter .....

I also have a Injen header shield ...... but i run a JoeZ intake kn drop in ...exhaust is Megan header stock y and B pipes and HKS TI-limited axle back.....
Old 05-29-09, 06:31 PM
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exodus_2
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N/A mod is cool. it's something different then boost. but you still need to tune it with some kind of piggy back or standalone to make good power out of all the mod you put on. since all the new cars runs with sensors and computer you need to tune it for best result but im sure you still will have lower power then boost if you looking at same amount of money.
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