• Owner: Frankie Alliano
• Dynamometer Model: dyno dynamics 450 single axle chassis dynamometer
• Installation: mb racing (kevin maecha)
• K-pro Tuning: xenocron tuning
2005 Acura Rsx Type-S
Pros
The '05 RSX continued building on Honda's reputation for affordable performance and high modification potential. Powering the Type-S is Honda's K20Z1, producing 210 hp and 140 lb-ft of torque-making it (at the time) one of the highest specific outputs of any naturally aspirated production engine in the world. Combined with a diminutive curb weight of 2,775 lbs, power gains measured by the dyno easily translate to real-world performance.Cons
Production of the Type-S with the K20Z1 only occurred in the '05 and '06 model years, making it a bit tricky to find upgrade options. While many aftermarket companies offer components specifically designed for this vehicle, many fail to recognize the subtle differences between the various trim levels, often neglecting to make the necessary alterations to insure proper fitment.
Notes
If the following dyno numbers appear lower than expected, please note all testing was performed utilizing a true heartbreaker: the Dyno Dynamics 450, reputed to be one of the most accurate and incorruptible chassis dynamometers in existence, albeit one that corrects for more drivetrain loss than most. Also, in order to insure the aftermarket parts tested here were not restricted by OEM components, our subject vehicle had been fitted with a K&N Typhoon intake and Skunk2 Megaflow cat-back exhaust prior to testing.
Pros
The legendary K-Pro EMS is unique amongst engine management systems (EMS) because although technically a stand-alone, it collaborates with the factory ECU, ensuring near-flawless operation with no loss in daily drivability. Interfacing with the K-Pro requires the use of Hondata's KManager software and a standard USB cable, both of which are provided with the unit. The KManager software seamlessly integrates both a complete engine management suite with an onboard data logger. This makes finding problem cells and altering maps nearly painless. Equally impressive is the speed at which you can upload these calibrations to the K-Pro, making fine-tuning your whip on the street, or a quick map switch at the track, almost effortless.Cons
Having such a competent piece of hardware doesn't come cheap. In order to install the K-Pro into any '05-'06 RSX, one must provide or purchase a '02-'04 RSX ECU, since the newer unit is incompatible with the device. The primary wideband O2 senor must also be swapped with one for the '02-'04 model years-an important step, as the stock O2 is unable to properly interface with K-Pro, leading to inaccurate air/fuel readings.Parts
Compatible ECU, K-Pro EMS, adapter harness, software CD, USB sable, stickers
Tools
Flathead screwdriver, 10mm sockets, ratchet, extension, Windows-enabled laptop
Installation Time
30 minutes
Notes
Installation and operation were surprisingly straightforward. The OEM ECU is located under the glove box and is easily accessible. However, if one wishes to fully conceal the K-Pro, the stock unit must be completely removed. If this is done, remember to plug in the USB cable prior to mounting and run the cable though the glove box to allow easy accessibility. Also note the K-Pro only comes with a 30-day warranty when purchased through an authorized Hondata dealer, so be prepared to complete the install the day you receive it to make sure it is properly functioning. We should also note that each product we installed on the RSX was tuned with the K-Pro to achieve maximum horsepower.
Hondata K-Pro Engine Management System
Horsepower Gain
• 2,000 to 3,500 rpm range: 8.0 to 10.0
• 3,500 to 5,500 rpm range: 3.0 to 6.0
• 5,500 to redline rpm range: 10.0 to 15.0
Torque Gain
• 2,000 to 3,500 rpm range: 10.0 to 15.0
• 3,500 to 5,500 rpm range: 5.0 to 10.0
• 5,500 to redline rpm range: 6.0 to 15.0
Strup Race Header
Horsepower Gain
• 2,000 to 3,500 rpm range: 2.0 to 3.0
• 3,500 to 5,500 rpm range: 3.0 to 12.0
• 5,500 to redline rpm range: 10 to 20
Torque Gain
• 2,500 to 3,500 rpm range: 1.0 to 4.0
• 3,500 to 5,500 rpm range: 4.0 to 15.0
• 5,500 to redline rpm range: 5.0 to 16.0
Pros
The Strup Acura RSX Type-S Race Header features a 4-2-1 design to increase flow and maximize power. Improvements to both power and torque were evident throughout the entire power band, with particularly great gains up top. The header is constructed of 304 mandrel-bent stainless steel tubing and is robotically TIG welded, resulting in a durable, high-quality product that should last for years.Cons
Using the stock motor mounts, we experienced some knocking of the header against the frame. To eliminate this, Strup recommends replacing the OE mounts with stiffer Energy Suspension Motor Mount Inserts. The need to purchase new mounts does increase the overall cost of installation, but these should be added, regardless.Parts
Two mufflers with piping, gaskets, hardware, decals
Tools
6-, 8- and 10mm socket, 10-, 12-, 14- and 17mm open-end wrench, ratchet, extension and swivel socket, hanger tool, WD-40
Installation Time
60 minutes