The TSX's K24A isn't wimpy, but when you pair it with a 3,300-pound chassis it leaves you wanting more. A cold-air intake, a header, and an exhaust system are the most logical places to go looking for more horsepower so that's where Arpon started. The combination consists of a K&N cold-air intake, a DC Sports 4-2-1 ceramic-coated header, and a Skunk2 stainless-steel cat-back exhaust system. Each mod takes less than an hour to install and, when paired together, is good for nearly 30 extra horsepower-even on a slushbox-equipped K24A like Arpon's. Best of all, both the K&N intake and the DC Sports header are CARB legal, which means guys like Arpon won't have to dodge the cops everywhere they go. Of course, everything bolted up as planned and comes with everything we needed for a trouble-free install, like exhaust gaskets, hardware, and hose clamps. Arpon wasn't looking for much power-wise-he's got his hatchback for that. He was more interested in the more aggressive exhaust note and a few new shiny parts he could polish in his spare time. But Bisimoto Engineering's Dynapack surprised him. With just basic bolt-ons the K-series pushed out 201.4 hp, more than 28 hp than before. Best of all, horsepower and torque gains are obvious across the board. Even with the supplied Skunk2 silencers, we still gained nearly 24 hp. Not bad for a daily driver.
 Skunk2's TSX exhaust not only...  Skunk2's TSX exhaust not only looks nice, it contributed to the 28 extra horsepower we found. |  The silencers are a must,...  The silencers are a must, despite the 4 hp lost on the dyno once stuck in. This is a daily driver though so noise is somewhat important. |  |
 We stopped off at Bisimoto...  We stopped off at Bisimoto Engineering in nearby Chino for a few dyno pulls before the bolt-ons and again after them. On a side note: Bisimoto Engineering is one of the most professional dyno shops we've ever been to. If you live in SoCal and you're looking for a reputable tuner that can give you the attention you need for a fair price, check out Bisimoto. |  As you'd expect, the Skunk2...  As you'd expect, the Skunk2 TSX exhaust includes everything from two mufflers to every gasket and bolt needed for a proper install. |  The bolt-ons were good for...  The bolt-ons were good for power and torque gains across the board. How's 164.2 lb-ft and 201.4 hp sound? That's a 31.4 lb-ft jump in torque. There was at least some sort of gain across the entire graph. |
 No build would be complete...  No build would be complete without matching Password:JDM power steering fluid and brake fluid reservoir socks. Be cool; get yours today! |  |  |