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If you're in search of a bit more refinement than our Stage 1 kit can offer, then this Stage 2 kit may be right up your alley. This kit includes our Shifter Rocker Upgrade (1922), Short Throw Adapter (1923), Shifter Centering Spring Upgrade (1918), Shifter Base Bushings (1914), ESCO stainless core, insulated shift knob (1886), and Shift Linkage Bushing Upgrade (1881). After installing this kit, you should notice a substantial change in shifting feel. Expect narrower gates, shorter throws, a substantial reduction in that "mushy" feeling at the end of shifts, as well as snappier centering action, and a knob that feels great and won't burn your hand on those scorching summer days.
IMPORTANT NOTE 1: If you are using an FK8 Shifter in your Sport or Si, the 1923 Short Throw Adapter will not work on your shifter. Instead of this kit, you should purchase the Stage 2 kit for the CTR, which omits the 1923 Short Throw Adapter
IMPORTANT NOTE 2: Use of the ESCO knob on the Sport or CTR model may result in improper fitment of the shift boot under the shift knob. This can be corrected using one of our 1924 Boot Collar Upgrade kits.
About the ACUITY Shifter Rocker Upgrade for the 10th Gen Honda Civic
This part can be appreciated as much during street driving as at the track. Altered geometry reduces the mechanical advantage of the rocker to provide narrower, stiffer gates. Much like how a short throw adapter reduces the distance in the forward and reverse direction while changing gears, this Shifter Rocker Upgrade reduces the distance in the left and right direction while changing gears (such as 2 to 3, 4 to 5, etc). The OEM plastic has been replaced with billet 6061-T6, making for a much stiffer part, meaning less flex when shifting forcefully and better feedback from the transmission during shifts. Additionally, ACUITY's unique joint designs at the main pivot and spherical joint incorporate low-friction, self-lubricating bushings that are designed to reduce friction in the shifter while naturally eliminating any gaps between parts in the joint. This allows the joint to wear-compensate over time, meaning the rocker will age gracefully and provide many years of use, abuse, and happy shifting.
About the ACUITY Short Throw Adapter for the 10th Gen Honda Civic
The Short Throw Adapter reduces the mechanical advantage of the shifter to provide shorter, stiffer gear throws. The extender is turned and milled from 300 series stainless steel, making it strong and extremely corrosion resistant. Acuity's unique clamping design ensures the extender will stay fastened, even with a modest amount of torque. Each kit includes an alcohol wipe and grease packet so the spherical joint can be cleaned and re-greased before installation.
About the ACUITY Shifter Centering Spring Upgrade for the 10th Gen Honda Civic
With a notably increased preload and nearly identical rate, the ACUITY Performance Shifter Centering Spring increases the centering load in neutral without significantly increasing the force required to locate the far gates (e.g. 1/2 and R). The end result is a sportier shifting feel without an increase in driver fatigue or a reduction in drivability. This spring is designed to provide a 100% increase in spring force on the Sport model and a 20% increase in spring force on the Si and CTR. This translates to about a 50% increase in centering force at the knob in the Sport model and about a 10% increase at the knob in the Si and CTR.
About the ACUITY Shifter Base Bushings for the 10th Gen Honda Civic
The OEM base bushings on most Hondas and Acuras are made from highly compliant rubber. Thanks to leverage, the small amount of compliance the rubber adds equates to a very noticable "spongy" feeling in the shift knob during shifts. This bushing kit replaces the OEM rubber bushings with rigid 6061-T651 aluminum making for a much more decisive shift, even with a stock shifter. As an added touch, the bushings are coated in a purple Type 2 anodized finished, laser etched, and paired with class 12.9 flat-head mounting bolts.
About the ACUITY Shifter Cable Bushings for the 10th Gen Honda Civic
About the ACUITY ESCO Shift Knob for the 10th Gen Honda Civic
Heavy shift knobs have long been regarded as a way to improve shifter feel by many tuners. The truth is, a heavy knob simply hides slop in a worn or flawed shifter and shift linkage. ACUITY designed the ESCO with the hopes of providing a more refined shift that makes the driver feel more connected to the transmission, and ultimately the car. This was done by use of a barrel-shaped acetal outer shell and a large, stainless steel threaded core. This gives the knob a mid-weight at around 172g...about the same as an aluminum knob of a similar size. The difference between the ESCO and an aluminum knob becomes most apparent on hot summer days. The ESCO knob remains cool tot he touch on days when an aluminum knob would be scolding hot. To top it all off, ACUITY has added epoxy filled lettering to the top of the knob and an engraved logo at the knob's base. The finished appearance is simply classic, showing obvious inspiration from supercars of years gone by. For the best shifting experience, pair your ESCO knob with ACUITY's shifter linkage bushings and/or performance shifter.
- 2016+ Honda Civic Sport with Manual Transmissions
- 2017+ Honda Civic Si
Click Here To Open Our Install Guides page, where you can access install PDF's for all of these products as well as videos for a number of products
Check Out This Review by Winding Road comparing a stock vehicle to one with our Stage 2 Shift kit:
Please note that all shipments ship the business day (mon-fri, except on holidays) after they are received.
Next-Day Shipping Policy:
Shipments are sent only after payment has been received. ACUITY Instruments LLC reserves the right to delay shipments temporarily if credit card fraud is suspected. ACUITY Instruments LLC ships all orders on the next business day. This means that if you purchase the "next day" shipping option, next day shipping will go out the next day, meaning a total transit time of 2-days. Similarly, 2-day shipping takes 3 days since the order is filled the next day. If you require faster shipping, we recommend you contact one of our vendors that carries inventory.
Everyone loves lots of shipping options! We offer USPS First Class, Priority, and Priority Express for shipments to most countries and states. We also offer UPS Ground, 2-Day, and other options for most US states and territories. Please remember, all orders ship the day after they are placed.
Shipping Insurance and Signature Policy:
Acuity insures all packages it ships. This insurance covers damage to or loss of the product while in transit only. This does not cover theft of the package after delivery. Because of this, a signature is required for delivery of all orders over $100 (before shipping costs). If you will not be available to receive the shipment, many carriers permit the recipient to leave a note on the door instructing them to leave the package. If you choose to do this, please remember that Acuity Instruments LLC cannot insure packages that are stolen.
Free Shipping Options:
Occasionally we offer shipping specials where orders over a certain amount are free. If we are offering this, you will see the free shipping option in your cart at checkout. If no options is visible at checkout, then either there is currently no free shipping offer or you are not in a zone that qualifies for free shipping. Most states in the continental USA qualify when a shipping special is being ordered. There is no choice of carrier for free shipping, but typically we will ship your order will likely ship using either USPS or UPS. If you'd like a faster delivery, you can opt out of the Free Shipping option in favor of a faster, paid, shipping option.
Taxes on International Shipments:
It is against Acuity's policy to falsify tax documents during the shipment of goods to locations outside of the USA. The tax documents for your shipment will reflect the price you paid for the parts. Please do not contact us requesting us to falsify tax documents so that you do not have to pay taxes on the shipment as we cannot do this.
Guaranteed Times by Carriers and Related Reimbursements:
On some shipping services, like USPS Priority Express, the service provider (USPS, UPS, DHL etc) will offer a shipping reimbursement if the order does not arrive on time. ACUITY does not assume responsibility for tracking these matters. If you suspect your service may have a delivery-time guarantee and was delivered late, please contact us with the order # and delivery info. Please note that a full refund is typically not provided by the carrier. ACUITY does not offer full reimbursement of shipping costs, but ACUITY will pass on 100% of any reimbursement for shipping costs from the carrier to the customer.
Domestic Transit Times:
For orders shipping within the continental USA, USPS First Class shipments will usually take around 5-7 business days for delivery. USPS Priority usually takes closer to 2-4 business days, and Priority Express usually takes about 2 business days. Your exact transit time will vary based on your location.
International Transit Times:
USPS First Class International shipping is very economical, but the transit time can be very slow. Please allow up to 4 weeks for delivery of orders shipped via USPS First Class International. USPS Priority mail is typically faster, normally taking closer to 2 weeks. USPS GXG is faster still, typically taking only about 1 week. Your exact transit times will vary depending on your location, and it is possible that your exact transit time will exceed the values provided here. We also offer UPS international shipping options for many countries.