If you own a Honda Civic Type R and you’re chasing sharper shifts and more confident cornering, one of the most effective upgrades you can make is to replace the factory transmission mounts. The stock mounts are engineered to prioritize comfort and noise isolation, but they allow noticeable drivetrain movement during hard acceleration and aggressive gear changes. Upgrading to stiffer aftermarket mounts transforms the connection between the engine, transmission, and chassis, delivering a more direct, mechanical feel that serious drivers crave. In this comprehensive guide, we’ll cover why this upgrade matters, the various mount types available, how to choose the right set for your driving style, and a detailed installation walkthrough so you can tackle the job yourself.

Why Upgrade Your Transmission Mounts?

The Honda Civic Type R is a front‑wheel‑drive performance machine that produces substantial torque from its turbocharged 2.0‑liter engine. Under hard acceleration or when shifting quickly, the factory rubber mounts can flex significantly, causing the entire powertrain to rock. This movement manifests in several undesirable ways:

  • Vague shifter feel – the gear lever moves as the transmission shifts position, making precise engagement difficult.
  • Wheel hop – excessive drivetrain motion can cause the front wheels to bounce, reducing traction and potentially damaging driveline components.
  • Delayed throttle response – engine movement triggers torque sensors, momentarily retarding timing.
  • Imprecise handling – the engine’s mass shifting under braking or cornering unsettles the chassis.

Upgraded mounts, typically made from polyurethane or billet aluminum with stiffer bushings, minimize this movement. The result is a tighter connection between you and the driveline, crisper shifts, and a more planted feel at the limit. While you gain performance, you also trade some vibration isolation; the trade‑off is well worth it for enthusiasts who prioritize driving engagement.

Signs That You Need Upgraded Mounts

Even if you haven’t noticed extreme movement, several symptoms indicate your stock mounts are being pushed beyond their design limits:

  • Difficulty engaging gears, especially 2nd or 3rd at high revs.
  • A “clunk” or thud from the engine bay when lifting off the throttle or shifting.
  • Visible engine rocking when you open the hood and rev the engine.
  • Wheel hop during aggressive launches or on bumpy pavement.
  • Shifter wandering to one side under load.

If you experience any of these, upgrading your transmission mounts will provide immediate, noticeable improvements.

Types of Transmission Mounts

Aftermarket mounts for the Civic Type R come in several formulations, each with distinct characteristics. Your choice should match your performance goals and tolerance for NVH (noise, vibration, harshness).

Polyurethane Mounts

Polyurethane is the most popular upgrade material. It’s significantly stiffer than rubber but retains some compliance to absorb minor vibrations. Durometer ratings (e.g., 70A, 80A, 90A) indicate stiffness; softer ones are daily‑driver friendly, while harder ones approach solid‑mount firmness. Many brands offer street and race versions. Pros: improved shift feel, reduced wheel hop, moderate NVH increase. Cons: can squeak over time, higher cost than rubber, may amplify drivetrain noise.

Solid (Billet Aluminum) Mounts

Solid mounts replace the entire rubber bushing with an aluminum or steel insert. They offer zero compliance, transferring every force directly to the chassis. These are ideal for dedicated track cars where maximum control and minimal movement are paramount. Pros: absolute shift precision, eliminates wheel hop, extremely durable. Cons: significant vibration in the cabin, interior panels may rattle, harsh for daily driving.

Hybrid Mounts

Some manufacturers combine a solid metal outer housing with a removable polyurethane insert, allowing you to swap inserts for different stiffness levels. Companies like Hasport and Innovative Mounts offer this versatility. Pros: customizable, one set works for street and track. Cons: slightly more expensive, requires additional time to swap inserts.

Choosing the Right Mount for Your Driving Style

Your choice should align with how you use your Civic Type R. Here’s a breakdown to help you decide.

Daily Driver / Street Use

If your CTR is your primary transportation, opt for a 68A–75A durometer polyurethane mount. Brands like PRL Motorsports and Innovative Mounts offer street‑friendly options. They will stiffen the driveline noticeably without making the cabin unbearable. You’ll feel more vibration at idle and low revs, but it settles as you drive. This is the sweet spot for most enthusiasts.

Weekend Track / Autocross Use

For cars that see frequent track days or autocross, a 75A–90A polyurethane mount or a solid aluminum mount is appropriate. The increased stiffness pays dividends in wheel hop elimination and shift consistency. Prepare for elevated NVH – you may need to turn up the stereo. Hasport and Boomba Racing make mounts specifically for this environment.

Full Race Build

If the car is trailered or used exclusively for competition, solid billet mounts are the way to go. They offer the ultimate in control and feedback. Vibration is constant and intense, but you’re prioritizing performance over comfort. Expect to reinforce other chassis points to handle the increased loads.

Several manufacturers produce high‑quality transmission mounts for the FK8/FK8R. Here are three proven options:

  • Hasport Performance Mounts – Available in street (60A), sport (70A), and race (85A) durometers. Their FK8 kit includes both engine and transmission mounts, ensuring a matched set. Widely trusted in the Honda community.
  • Innovative Mounts – Known for their billet aluminum housings and replaceable polyurethane inserts. The IME-FK8-70A is a popular street choice.
  • PRL Motorsports – Offers a complete mount set with performance polyurethane, designed to complement their turbo and intercooler upgrades.

Installation Guide: Replacing Your Transmission Mounts

Installing upgraded transmission mounts is a straightforward job that most DIYers can complete in a weekend. You’ll need basic hand tools, a jack, jack stands, and a torque wrench. Always consult your vehicle’s service manual for vehicle‑specific details.

Tools and Materials Needed

  • Floor jack and two jack stands
  • Socket set (10mm, 12mm, 14mm, 17mm, 19mm)
  • Torque wrench (ft‑lb range)
  • Extensions and wobble sockets (reach is tight)
  • Penetrating oil (for rusted bolts)
  • Threadlocker (blue Loctite recommended)
  • Shop rag and safety glasses

Step‑by‑Step Installation

  1. Prepare the vehicle. Park on a level surface, chock the rear wheels, and lift the front end using the front subframe lift points. Place jack stands under the frame rails. Do not rely on the jack alone.
  2. Support the transmission. Place a jack (with a block of wood) under the transmission oil pan. Slightly raise it to take the weight off the mounts, but do not lift the vehicle. This prevents damage to the transmission.
  3. Remove the driver‑side undercover (if equipped) to access the transmission mount. It’s a simple plastic panel held by 10mm screws or push clips.
  4. Unbolt the stock transmission mount. You’ll see a large bolt (typically 19mm) securing the mount to the transmission, and two or three bolts attaching the mount bracket to the chassis. Remove them carefully. The transmission may shift slightly – that’s why you have the jack supporting it.
  5. Remove the mount assembly. The mount consists of a bracket and a rubber bushing. Separate them on the bench. Clean the bracket contact surfaces.
  6. Install the new mount. If your aftermarket mount uses a separate insert, press it into the bracket. Apply a small amount of grease to polyurethane bushings to prevent squeaks. Bolt the assembly loosely to the chassis first, then to the transmission. Use threadlocker on all bolts.
  7. Tighten to spec. Torque the transmission‑to‑mount bolt to approximately 47 ft‑lb, and the chassis‑side bolts to 32 ft‑lb (check manual for exact values). Over‑torquing polyurethane can cause premature failure.
  8. Repeat for the rear mount (if upgrading). Many kits include both front and rear transmission mounts. Access the rear mount from underneath the car – it’s near the firewall on the passenger side. Follow the same support/remove/replace procedure.
  9. Lower and test. Remove the transmission jack, replace the undercover, lower the car, and take a cautious test drive. Let the car warm up to normal operating temperature. You’ll notice increased vibration at idle, but shifts should feel direct and precise.

Important tip: After 100–200 miles, re‑check the bolts. Polyurethane mounts can “settle” and may need a re‑torque. This is normal.

Benefits Beyond Shifting

Upgrading transmission mounts does more than improve gear changes. Here are additional performance gains:

  • Reduced wheel hop – by locking the drivetrain in place, power is delivered more effectively, especially on imperfect surfaces.
  • Improved throttle response – less engine motion means the electronic throttle control doesn’t see erratic movement, leading to more linear response.
  • Better chassis feedback – you feel the road and engine behavior more directly, aiding driver confidence.
  • Longer drivetrain life – reduced movement lessens stress on CV joints, axles, and transmission casings.

Potential Downsides to Consider

No upgrade is without compromise. Be aware of these before you buy:

  • Increased NVH – the most common complaint. Vibrations at idle and low RPM can be intrusive, especially in solid or high‑durometer mounts. Some drivers find aftermarket mounts unacceptable for a daily driver.
  • Interior rattles – the increased feedback can loosen interior trim pieces over time. Sound deadening is an effective countermeasure.
  • Higher cost – quality mount sets range from $150 to $400, but they last much longer than rubber. Consider it a long‑term investment.
  • Installation difficulty – while manageable, some bolts can be stubborn. Use penetrating oil and patience.

If you’re unsure about the NVH level, ask fellow CTR owners at a local meet or on forums like CivicX Forum for real‑world feedback.

Final Tips for a Successful Upgrade

Before you begin, read through the entire installation instruction supplied with your mounts. Many manufacturers provide model‑specific notes. Also consider replacing the engine mounts if you’re already doing the transmission mounts – doing them together ensures balanced stiffness and prevents future work. Keep your original mounts if you ever decide to sell the car; some buyers prefer a stock driving experience.

Upgrading the transmission mounts on your Honda Civic Type R is one of the most rewarding modifications you can make for driving feel. Whether you choose a mild polyurethane set for street comfort or a solid race mount for the track, the improvement in shift accuracy and chassis response will make every drive more engaging. Invest the time in proper installation, re‑torque after break‑in, and enjoy the sharper, more connected experience your Type R deserves.