I know K&N makes great products—I've been using their air filters for years (my Yaris actually had a K&N panel filter before this install). I'd installed a K&N AirChrager Intake Kit on my dad's 2006 Corvette last summer. However, I've been curious about this specific Yaris intake for some time. See, unlike most other intake systems for the Yaris, K&N's Typhoon employs a metal heat shield designed to keep power-robbing warm air away from the filter. Speaking of power, K&N claims 4.56 more horsepower than with the stock intake; they also include a dyno graph.
From the get go, you can tell this is a well-made, well-thought-out unit. Everything is packaged nicely; the parts are of high quality metals; and many parts even have part numbers stamped onto them to avoid confusion during installation. The kit includes instructions with a useful exploded view of the system, a listing of parts (with part numbers and description), and step-by-step installation instructions. You'll want to follow those instructions carefully, as there are a surprising number of parts to this intake, when you include all of the brackets, nuts, bolts, washers, etc.
K&N has added a few nice touches to this kit. First, it includes nylon lock nuts for all of its bolts, ensuring a long-lasting hold. Also, the metal drilling and cutting is first rate—from the black-coated aluminum intake tube, to each bracket. K&N really did its homework, as all of the brackets fit perfectly, the screws thread seamlessly, and it all goes together very well ... with one minor exception.
My review sample has a small section of weatherstripping that didn't want to conform to the heat shield's contour (see picture). I tried reinstalling the weatherstripping a few times, but it kept popping up in the area with the red box. However, with the hood closed, this section of weatherstripping conforms to the shield's edge, since the hood should create a seal. I may apply a bit of adhesive to make sure it stays put.
So the real question: Performance. Compared to a stock Yaris, the Typhoon system roars at wide open throttle; it sounds fantastic. Like most intakes, there's no major difference at idle or at cruising speed. But mash the throttle, and it's hard not to grin!
Without putting the car on a dyno, I can't comment about actual power. However, K&N is a reputable company and actually guarantees that this intake will make power. I will say that throttle response is notably improved. And again—it sounds great!
Want to hear it?
Combine this with one of the many available exhaust systems on the market (FYI, I am running a Thunder axleback), and you'll have a great sounding Yaris with a bit more pep, too.
This is a very high-quality intake made by a reputable manufacturer that puts real research and development into their product. And although there was a minor issue with the weatherstripping, it's an easy fix.
The K&N Typhoon for the Toyota Yaris (part number 69-8612TFK) retails for$449.00, but is available at Truck Champ Truck Accessories for $321.04.
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