Over the years I've only added modest bolt-ons to improve the power output on my 2002 Civic Si (EP3) hatchback. My collection of bolt-ons includes a Mugen airbox, Mugen Twin Loop, RBC intake manifold and K-Pro. After a quick call with Scott at King Motorsports, I settled on his recommendation to go with the Skunk2 Racing Alpha Series header.
Scott said they've seen respectable gains from the Skunk2 header and the build quality gets his thumbs up. From what I've read online, the Alpha is essentially the same design as Skunk2's top-shelf MegaPower line, but at a lower price point thanks to some advanced manufacturing technology (and probably concessions on materials used).
General feedback I've read from owners is that people love this header. Fitment on K20A3/A2 is good, so long as it is done by a professional. Folks with a K24 swap may have to do a bit of magic with their front sway bars -- a common issue that affects all aftermarket header choices.
This is the first race header I've ever purchased. I had a lot of questions about what would be included out of the box, so for you fellow newbies out there, this post is for you. Keep in mind this is for the DC5/EP3 (Skunk2 part #412-05-1910) -- so your results may vary for other fitments.
The box itself is fairly sturdy and red and black graphics scream performance. This is one delivery you don't want to leave on your front porch overnight. For you married folks, this is a car part delivery that will be hard to hide, ha ha.
The header was wrapped in bubble wrap which provides reasonable protection during shipment. The entire contents of the box:
- Alpha series header
- adapter pipe
- donut gasket
- oxygen sensor defouler
- 2 front sway bar brackets - allows for side-to-side repositioning of the sway bar thanks to elongated mount openings.
- owner's kit - a black envelope that includes a Skunk2 brochure and registration card with serial number.
- Skunk2 Racing decal
Here are the front sway bar brackets, defouler and donut gasket:
Here is the adapter pipe:
Here is one of the 2 oxygen sensor bungs. Remove this bolt to install the oxygen sensor.:
Here is the second oxygen sensor bung. Remove bolt to install oxygen sensor or defouler.:
The top has an ALPHA badge and holographic sticker with serial number:
The underside has two ALPHA stamps near the hanger:
There is one more badge that says "FOR OFF ROAD USE ONLY. NEVER TO BE USED ON POLLUTION CONTROLLED VEHICLES" just downstream of the hanger:
Next up -- installation and dyno tuning!
See more Skunk2 Racing products at the King Motorsports online store!
We don’t have to tell you there are passionate Honda owners all over the world. We’ve helped countless enthusiasts achieve their goals, whether it’s a fully-built race car or a daily driver that performs and looks great on the street. One of these enthusiasts is Andy Thompson – and he lives right here in Wisconsin. He’s local to our facility in New Berlin, Wisconsin and is close enough to stop by from time to time. We were lucky enough to see his amazingly clean CR-X SiR at our 2014 Dyno Day event.
His CR-X is a 100% legally imported JDM RHD beauty that took over 3 months to locate and import in 2008. Because Andy imported it, he’s the first and only Stateside owner. He took it from fairly rough shape and has built up an “OEM perfection” build that stays true to the period and is fueled by Andy’s background in both graphic design and mechanical engineering. If you ask us, that’s a potent education for crafting a clean ride. Good taste plus the skills to achieve your vision? That’s a win-win combo.
The love he’s put into his old school Honda definitely deserves a special showcase, so we caught up with Andy to get the 411 on his build. Andy says that compliments can be hard to come by in the import scene, but I think you’ll agree his CR-X deserves them.
Why a CR-X?
Andy: I feel that many people forget to realize the fact that vintage Japanese cars can hold as much history as any other car. It’s true that many older Japanese cars are built like cheap utilities -- including the Honda CR-X -- but that doesn’t make them any less important than any other car in the scope of automotive history. Many of us grew up with affordable tuner cars, including myself, buying my first CR-X at 13 and owning five EFs before I even bothered to try a different car (an S2000), but unlike many, I can’t just forget and leave the EF chassis behind.
At 17 I sold off almost everything I owned in order to seize the opportunity to bring this CR-X into the US -- fully legal and VIN matched. The car was sold as an extremely dirty rolling shell, with engine shipped separate, but it was all there. Rust free, and most importantly able to be registered just before the laws changed.
Having owned a CR-X since 13, I had grown an undivided love towards the weird little cars, and knew instantly that this car had the potential I was looking for.
Classy choices for a teenager Andy! You were raised right! Tell us about your CR-X.
Andy: The exact model is a 1990 EF8 SiR Glasstop in Torino Red Pearl. For a little background info, SiRs were only made in Steel roof and Glasstop models. The Glasstop was a rare dealer option, in which was only sold in black and red. The red models were extremely rare as compared to the black, in which I only know of one that resides in the US at this time.
Since 2008, I have been slowly working at this car to build an example of one of the cleanest CR-X projects while paying respect to what Honda intended when their engineers designed this lovable little machine. I continually strive for OEM perfection, and aftermarket modifications that complement the vehicle in a vintage grip car sort of manner.
Every year I try to do something interesting to the car. This past spring, I completed an EK9 32 mm 5-lug conversion with EK9 brakes in order to fit a set of extremely rare DP Motorsport Pacific wheels I picked up brand new in box from 1987. Because I have a BS in Graphic Design, visual and complementary aesthetics are very important to me; these era-specific turbine wheels were perfect for the car.
Wait so you found classic wheels that are even older than your car? And they were brand new?
Andy: Yes-- I purchased the wheels earlier this year from a guy in Ohio. The wheels were manufactured in 1987 and were still brand new, unused in their original boxes. 2 of the 4 were still sealed in their original bags never opened. So the wheels had sat for 27 years before I got a hold of them.
Holy cow that is awesome. What were the next mods?
Andy: The 5-lug swap project became quite an ordeal once I got into it, including sandblasting and powdercoating most of the suspension and brakes -- and acquiring a lot of new hardware, ball joints, bearings, etc. I met Scott at King Motorsports earlier this year and knew he was the guy to help me tie up all of the loose ends on my laundry list of parts to make the conversion happen.
What does the future hold for you and your CR-X?
Andy: Currently I am very happy with how the car sits. If I were to list future plans for the car, the top of the list would include new old stock front and rear bumpers, trim, and side moldings; OEM fog lights; and a working bumper pole (I have one, it’s just junk). I am also always on the look for old rare wheels, and would love to find a set of SSR Air Stage or Auswuch for it.
I’m happy with the stock B16 engine, it runs perfect and all accessories work, including the AC, thank god. Perhaps unrealistically, I have always considered a Honda N22 swap (I’m a pretty big diesel fan). I think a very interesting project could come about from the swap.
I’m very thankful that King Motorsports is able to help keep these “golden era” Hondas on the road. Valuable resources like that don’t come around often.
Enjoy my CR-X and remember to keep the classics alive!
Complete matching VIN Real EF8
Torino Red Pearl Color
JDM SiR Cyber Top (glass roof, rare option)
JDM SiR Wing
JDM SiR front lip
JDM SiR Power folding mirrors
JDM SiR Amber glass
JDM Window visors
JDM NSX Seats
JDM SiR Back seats
JDM ATC Sprint Steering wheel (Mugen Horn Button)
JDM Mitsubishi Mini Disk Player/CD Player
HKS Shift knob
Cartiva Bamboo Floor Mats
Original matched B16A
HKS Sport Exhaust
JDM Integra Type R Valve Cover
JDM Integra Type R Oil Cap
Skunk 2 Pro C Coilovers
Function 7 Lower Control Arms (Spherical Bearings)
ASR Subframe Brace
Spoon lower tie bar
Skunk 2 Pro Series adjustable control arms front
Skunk 2 Pro Series adjustable control arms rear
EK9/ITR 5 lug Front Spindles (Machined for SiR/DA Wheel Bearing)
EK9/ITR 5 Lug Rear Spindles
Powdercoated DA Front Knuckles
Powdercoated EK9 Rear hubs
Powdercoated EK9 Front Calipers
Powdercoated EK9 Rear Calipers
OEM EK9 Brake Rotors
Techna Fit Braided Stainless Steel Brake Lines
Project Mu NS 400 Brake Pads
15 X 6.5 +18 1987 DP Motorsport Pacific Wheels
185/55 R15 Yokohama S Drive Tires
Mugen Lug Nuts
Volk Rays Valve Stems
See more pics on Andy’s Flickr account:
Find parts for your CR-X on King's online store:
In our shop recently: We put our vertical mill to good use porting a Skunk2 K Series intake manifold for a 74mm throttle body. This manifold is headed for install on a K24/K20, with dyno tuning shortly afterwards.
Our customer Jason S. asked, "Can't this be done on a flap wheel?" The answer is that it is difficult to get the precision to open up the throttle body exactly 4mm with a flapper wheel. We're all about precision!
We are also porting the intake runners.
Here is a close up of the before (right side) and after (left side).
Call or email us to talk about your porting job!
Skunk2 Intake Manifolds