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| After removing the stock stuff, the heat shield is installed. |
The car features sport tuned Bilstein dampers with an aggressive calibration and 19” forged BBS wheels. Large Brembo brakes stop the car, 14.2” front rotors with 6 piston calipers for the front and 13.6” two pistons in the rear. A Torsen LSD is also standard.
In short the IS-F is a pretty darned good car out of the box, a good handling, luxurious, fast car capable of low 13 to high 12 second quarter mile times, sub 115 foot 60-0 stops, over .90 G cornering and even gets outstanding mileage. We have been getting a 24-26 mpg average, better than our G35 sedan in a car with 150 more hp and 300 lbs more weight! The car has a Jekyll and Hyde personality. It can be an ultra high performance sports sedan when you want it and it can also be a smooth and quiet car just like an, uh Lexus, just the thing for making commuting more bearable.
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| The velocity stack attaches to the heat shield and the shield mounting tabs all bolt to stock threaded holes that already exist in the engine compartment. |
When our friends at K&N heard that we had gotten an IS-F, they got excited and insisted that we try out their Typhoon high flow air intake system as they claimed that they had gotten excellent results in their testing. We inquired how much and they sent us a dyno sheet showing a gain of 28 whp and 25 lb/ft of torque! That is a huge amount for an air intake on a naturally aspirated car, perhaps the biggest gain we had ever seen.
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| Next the K&N filter and silicone coupler attaches to the heat shield. |
