Honda Civic Si
|2015 Honda Civic Si Coupe|
|Body and chassis|
The Honda Civic Si is a sport compact trim of Civic by Honda. The Si (Sport Injected) trim was introduced for the third generation of Honda Civics in both Japan and North America. In Canada and elsewhere the trim became known as the SiR for the sixth and seventh generations, and the Si trim was equivalent to the USDM EX model.
For the Japanese and European markets, the Civic Type R was adopted as the high-performance variant of the Civic, starting with the EK9 hatch for Japan in 1996 and then with the EP3 hatch for Europe in 2001. In North America the Type R name has never been used for Honda-branded vehicles (only the Acura Integra), and the Si/SiR badge continues to signify the highest performance trim. The Civic Si contrasts with the more track-oriented and spartan Type R, which has less sound deadening and amenities in return for better performance. The Civic Si has been positioned as more of a full-featured sport trim, featuring luxury options such as a sunroof and a seven speaker audio system.
|Eighth generation Si
|Assembly||Alliston, Ontario, Canada (HCM)
Sumaré, São Paulo, Brazil (Honda Brazil) (from January 2008–present)
|Body and chassis|
|Body style||2-door coupe (FG2)
4-door sedan (FA5)
|Engine||2.0L 197 hp (147 kW; 200 PS) I4
2.0L 192 hp (143 kW; 195 PS) (Brazil)
|Wheelbase||104.3 in (2,649 mm) (coupe)
106.3 in (2,700 mm) (sedan)
|Length||174.8 in (4,440 mm) (2006–08 coupe)
175.5 in (4,458 mm) (2009–11 coupe)
176.7 in (4,488 mm) (sedan)
177.3 in (4,503 mm) (2009–11 sedan)
|Width||68.9 in (1720 mm) (coupe)
69.0 in (1750 mm) (sedan)
|Height||53.5 in (1340 mm) (2006-08 coupe)
56.5 in (1420 mm) (sedan)
|Curb weight||2,877 lb (1,305 kg) (2006 coupe)
2,886 lb (1,309 kg) (2007-08 coupe)
2,899 lb (1,315 kg) (2009 coupe)
2,895 lb (1,313 kg) (2010-11 coupe)
2,945 lb (1,336 kg) (2007-08 sedan)
2,954 lb (1,340 kg) (2009-11 sedan)
The Si was redesigned for the 2006 model year along with all other Civic trims, bringing about significant changes from the previous generation. The car comes with a 2.0-liter K20Z3 i-VTEC engine that produces 197 hp (147 kW; 200 PS) and 139 lbf·ft (188 N·m) of torque, while also including a 6-speed manual transmission with a helical limited slip differential. Forty percent stiffer spring and dampening rates from the non-Si trims and stiffer sway bars have bolstered the Civic Si's handling, with the car achieving 0.90g (8.8 m/s2) of lateral acceleration on the skidpad. It is also the quickest Civic Si off the line, with a factory 0–60 time of 6.7 seconds according to Honda. Some new features include a moonroof, a seven-speaker 360-watt sound system, 17-inch alloy wheels with 215/45R17 Michelin all-season tires, and key-less trunk access.
In Canada, the Acura CSX Type-S was offered in 2007, borrowing the engine and drivetrain from the Civic Si but offering additional luxury options such as leather seating. The CSX features similar front and rear fascias to the JDM Civic, but with slight differences—the CSX has a crease running along the center of the hood and front bumper, whereas the JDM does not.
The 2007 model changes for the Civic Si include the addition of the Si trim for sedans, vehicle stability assist (VSA) (not available on Canadian models. The 2010 and 2011 Canadian models had VSA), darker silver wheels, body-color grille, a deck lid spoiler, reversed red/black coloring on the odometer, and Si-embroidered front floor mats. The introductory price of the Si Coupe increased by $800 to the MSRP of $21,090.
For the 2008 model year, the Civic Si received minor tweaks that include even darker wheels than the 2007 model and a new shift boot with red stitching. Mechanical changes included a new tire pressure monitor system, a new rear upper arm that decreases the amount of rear camber, and a lowered spring rate for the coupe to match the sedan. This was also the first year Canada sold the Civic Si Sedan.
Vehicle color selections:
- Fiji Blue Pearl (Si-exclusive color, replaced by Dyno Blue Pearl in 09)
- Galaxy Grey Metallic (replaced by Polished Metal Metallic in 09)
- Habanero Red Pearl (Si-exclusive color, replaced by Redline Orange Pearl in 09)
- Nighthawk Black pearl (replaced by Crystal Black Pearl in 09)
- Rallye Red
- Taffeta White
- Alabaster Silver Metallic
Civic Si Sedan
Honda introduced the Civic Si Sedan for North America in 2007; previously, only the Japanese market had been offered Si Sedans. Debuted at the Chicago Auto Show, the Si sedan concept featured larger 18-inch alloy wheels than its coupe counterpart, along with 4-piston Brembo brakes, and large cross drilled brake rotors. The production version lacked such concept accouterments, and the Si Sedan is mechanically almost identical to the coupe. Performance of the Si sedan is roughly equivalent to the Si coupe; the sedan's 60-pound (27 kg) weight increase is offset by a slightly more balanced front/rear weight distribution (60/40 for the sedan versus 61/39 for the coupe).
Civic Mugen Si Sedan
The 2008 model year also brought into production the limited-edition 2008 Civic Mugen Si Sedan, which was announced at the 2007 SEMA auto show. The Mugen sedan came only in Fiji Blue Pearl, and featured a higher-flowing cat-back exhaust, track-tested sport suspension, an exclusive Mugen grill, an exclusive shift knob, Mugen Si badges on the exterior and interior, Mugen forged GP wheels, and a Mugen body kit custom designed for the American trim. Production was limited to only 1000 units, and the car carried an MSRP of $29,500. Testing by Car and Driver magazine determined that the acceleration of the Mugen Si was roughly equivalent to that of the standard Civic Si coupe.
Changes for the 2009 Si included a revised front bumper and grill, a neclear-lensed and amber bulbs for the front and rear turn signals, a clear instead of red third brake light in the rear spoiler, and chrome trunk trim for the sedan. Several new colors were also introduced, such as Redline Orange Pearl, Dyno Blue, Polished Metal Metallic, and Crystal Black Pearl, replacing the previously similar colors.
The 2010 Civic Si saw no significant changes, save for a black engine cover (instead of silver).
|Ninth generation Si (FB6/FG4)|
|Assembly||Alliston, Ontario, Canada (HCM)|
|Body and chassis|
|Body style||4-door sedan (FB6)
2-door coupe (FG4)
|Engine||2.4L 205 hp (153 kW; 208 PS) K24Z7 I4|
|Transmission||6-speed manual with Helical Limited-Slip Differential|
|Wheelbase||Coupe: 103.1 in (2,619 mm)
Sedan: 103.1 in (2,619 mm)
|Length||Coupe: 176.1 in (4,473 mm)
Sedan: 177.3 in (4,503 mm)
|Width||69.0 in (1,753 mm)|
|Height||Coupe: 55.0 in (1,397 mm)
Sedan: 56.5 in (1,435 mm)
|Curb weight||2,877 lb (1,305 kg) (2012 Coupe)
2,895 lb (1,313 kg) (2012 Sedan)
The 9th generation Civic Si comes in a Coupe and a Sedan. The engine has been upgraded from the 8th generation to the K24Z7, which is rated at 11.0:1 Compression, 2.4L 201 hp and 170 lb·ft (230 N·m) of torque. In early 2014, through a retuned exhaust system, the horsepower increased to 205 hp and 174 lb·ft (236 N·m) of torque. This is a higher compression version of the one found in the Honda CR-V. The maximum torque is reached at 4400 rpm while the engine in the 8th generation reached it at 6000 rpm. The redline has been reduced to 7000 rpm, with a fuel cut at 7200 rpm. Retained is the 6 speed manual transmission, which is the only available transmission option. The wing spoiler found on the previous generation is replaced by a different design deck-lid spoiler. The interior of the car received slight updates as an addition of rev limit indicator and a power meter, displayed in the new i-MID (intelligent Multi-Information Display). Sway bars has been changed to F18mm/R15mm from the F28mm/17mm in 8th generation. The chassis is more rigid and the curb weight is slightly lower than the previous model. It is the same size as the outgoing model. As with the prior generation, it has a helical LSD (Limited Slip Differential). 
Announced at the 2011 SEMA Show in Las Vegas a HFP (Honda Factory Performance) Version of the Civic was made available in a limited production of dealer installed performance parts which included:
- Lowered Suspension
- 18" HFP Diamond Cut Alloy Wheels
- Michelin Pilot Super Sport sized in 215/40-18
- Full body Kit including front, rear and side skirts
- HFP Badging
- HFP Branded Floor mats
In Canada the production was limited to 400 (200 Black Coupes, 200 White Coupes). In the USA the production was limited to 500 available in all of the colors Honda Offered the Civic Si Coupe in. 
In Insurance Bureau of Canada's report on top 10 most stolen vehicles in 2005, 2000 Honda Civic Si 2-door, 1999 Honda Civic Si coupe, 1994 Honda Civic Si 2-door Hatchback, 1995 Honda Civic Si 2-door Hatchback are listed as ranks #1, #2, #5, #8 respectively. However, it should be noted that the sixth and seventh generation Civic Si was badged as a Civic SiR in Canada. The Canadian Si was equivalent to a US market EX.
- "Honda » Test Drive: 2004 Honda Civic Si Sedan". CanadianDriver. 2004-04-30. Retrieved 2011-02-02.
- "Honda Civic SiR". Canadianautoreview.com. 2002-04-03. Retrieved 2010-12-19.
- "2006 Honda Civic Chassis". Honda.
- "Mid-Size Coupe Comparison". Motor Trend.
- "Auto Buzz". ReportOnBusiness.com.
- "Honda Civic Si Sedan Coming to Canada". CNW Group.
- "2007 Honda Civic Review". JB car pages.
- "Honda Announces Civic Mugen Si Sedan at SEMA". Honda.
- "2008 Honda Civic Review". JB car pages.
- "Honda Civic Mugen Si Short Take Road Test". Car and Driver.
- "2014 Civic Si Ups the Ante with More Power, Higher Tech and Sportier Coupe Styling". Honda.
- "Build Your Civic Si Sedan". American Honda Motor Co. Retrieved 29 November 2011.
- Honda Canada Inc. "Honda HFP". honda.ca.
- "Top 10 stolen cars". MSN Finance.
|Wikimedia Commons has media related to Honda Civic.|
- 2008 Honda Civic Si Coupe official U.S. site