IS-F Big Throttle by Think Design
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From: LV 426
IS-F Big Throttle by Think Design
There's another thread floating around here or on LexusF.com and I believe they claimed about a 5-10hp gain...
I'm sure its a pricey item too, but Think Design does make quality... you get what you pay for.
I'm sure its a pricey item too, but Think Design does make quality... you get what you pay for.
typically TB's will give better throttle response, more air into the plenum faster. HP may come at peak, but you may lose low end torque. For instance, I now have dyno proof of the wide open secondary intake path losing power over the stock 2-stage intake path in the low end. When will we get an ITBL setup...that would be the best by pushing the throttle plate closer to the valves 
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icode makes 2 available upgrade options. Since there are 2 manufacturers producing them this upgrade SHOULD make a difference. icode states +5 ps/5hp increase, with an upgraded intake and a more free flowing exhaust this should definitely yield more than 5 hp.
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a little off topic but there's also a ecu reprogramming to sharpen the trans shift, map, throttle response, and speed limiter delete. +20hp
http://translate.google.com/translat...ial%26hs%3D14d
http://translate.google.com/translat...ial%26hs%3D14d
It makes sense, last year I reported that my times were slower when using the secondary intake wide open, at the 1/8 mile I lost 2 MPH and my times were about 0.2 seconds slower. This was done in the same night, back to back runs.
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