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Description
Hasport Rear Engine Mount 12-15 Civic SiPRODUCT DETAILS Hasport FG4RR Rear Engine Mount for 20122015 Honda Civic Si If your 20122015 Civic Si feels like the drivetrain is slopping around, lazy shift engagement, clunks, or wheel hop on hard launch, the factory rear mount is usually the culprit. The Hasport FG4RR rear engine mount tightens up the FG4 chassis by controlling engine movement, sharpening throttle response, and keeping everything where it belongs when you actually drive the car
PRODUCT DETAILS
Hasport FG4RR Rear Engine Mount for 2012–2015 Honda Civic Si
If your 2012–2015 Civic Si feels like the drivetrain is slopping around, lazy shift engagement, clunks, or wheel hop on hard launch, the factory rear mount is usually the culprit. The Hasport FG4RR rear engine mount tightens up the FG4 chassis by controlling engine movement, sharpening throttle response, and keeping everything where it belongs when you actually drive the car hard. Honda tuned the OEM rear mount for comfort first. After 10+ years, that rubber turns into a marshmallow. The engine and trans rock back and forth under acceleration, braking, and shifts, which leads to missed gears, extra shock on the other mounts, and that vague “mushy” feel. The Hasport Civic Si rear mount swaps the stock piece for a much more rigid unit with your choice of bushing stiffness, so you can match it to how you really use the car. Hasport has been a go-to name in Honda mounts for a long time, and this FG4RR is a direct bolt-in for the FG4 Civic Si subframe and factory bracket, no weird universal brackets, no hacking.
Key Benefits
- Locks down engine movement during acceleration and shifts so the drivetrain stays in line when you’re on it
- Cleaner, more consistent shift feel because the trans isn’t rotating away from the shifter cables
- Less wheel hop on launches compared to tired OEM rubber or generic replacement mounts
- More repeatable throttle response since the engine isn’t rocking back and forth every time you mat it
- Direct bolt-in replacement for the stock rear engine mount, no cutting, welding, or “universal fit” nonsense
- Built specifically for the FG4 Civic Si chassis, not a one-size-fits-nothing bracket
Precision You Can Actually Feel
The Hasport FG4RR rear engine mount uses proper CAD/CAM development, so the geometry, alignment, and clearances actually make sense in an FG4 engine bay. On these cars, keeping the engine where Honda intended is a big deal, especially if you’re launching hard or running sticky tires. By cutting down engine rotation more than the factory piece, this Hasport Civic Si engine mount helps keep axle angles, exhaust clearance, and shifter linkage geometry much more consistent. In practice, the car feels tighter, more predictable, and more connected, instead of the engine trying to leave the bay every time you clutch-kick it. This isn’t a “close enough, drill a new hole” mount. Hasport builds the FG4RR specifically around the 2012–2015 Civic Si layout, which is why it behaves better than bargain mounts that claim to fit everything.
Urethane Durometer Options Explained
You get four urethane options on this Hasport rear mount for the 2012 Civic and up, all the way to the 2015 Si. Pick wrong and you’ll either hate the vibration or still hate the wheel hop, so it’s worth a minute to choose correctly.
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62A Urethane (U62A – Street)
Softest of the bunch. Ideal if you daily the car and want a vibration minimizing engine mount that still fixes the worst of the slop. NVH goes up slightly over dead stock, but it’s totally livable for a commuter that still hits a backroad now and then. -
70A Urethane (U70A – Track/Spirited Street)
The “I actually drive this thing hard” Civic performance rear mount. Noticeably stiffer than stock, much better control, but NVH is still reasonable. Good match for bolt-on FG4s, occasional track days, and people who don’t mind a bit more feedback. -
88A Urethane (U88A – Race/Heavy Track)
For aggressive street builds and regular track work. Engine movement is basically gone, shifts feel locked in, and launches are more repeatable. Expect clear vibration at idle and low RPM—this isn’t the bushing for someone hunting luxury-car vibes. -
94A Urethane (U94A – Extreme)
The stiffest Hasport bushing Civic Si 2012 option. Aim this at drag, time attack, or any car that spends most of its life on track or trailer. Maximum drivetrain control, maximum NVH. If you daily your FG4, don’t pretend you’ll love this one.
Vehicle Compatibility
Direct fit for:
- 2012 Honda Civic Si
- 2013 Honda Civic Si
- 2014 Honda Civic Si
- 2015 Honda Civic Si
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.7 ★★★★★
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Product Reviews
★★★★★ 5
Perfect for the bathroom
Color: Dark Brown, Size: 15.7 inch, Color: Dark Brown, Size: 15.7 inch
I recently installed the these floating shelves with Wire Storage Basket, and I'm genuinely impressed with their blend of style and practicality. The shelves were easy to mount, and the included hardware felt sturdy, ensuring they're securely in place. Right off the bat, I noticed the quality of the materials; the wood has a nice finish, and the wire basket is well-constructed, promising durability.
Functionality is where these shelves truly shine. The wire basket is perfect for storing smaller items, keeping them organized and within easy reach, while the shelf space is great for displaying decorative pieces. They've helped me declutter my space and add a touch of rustic charm at the same time.
Aesthetically, these shelves look great in my bathroom. Overall, these floating shelves have exceeded my expectations, offering a stylish and functional storage solution that's built to last.
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Reviewed in the United States on January 9, 2026
★★★★★ 5
Looks great and holds firm.
Color: Dark Brown, Size: 15.7 inch
Looks great in my bathroom. Great functionality and good quality shelving and frame. I wouldn't stack an Encyclopedia Britanica on it, but it will solidly hold bathroom items with no problem. I added a couple of motion-activated rechargeable light on each side of this unit and it really looks great while serving a very practical purpose.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Looks great
Color: Dark Brown, Size: 15.7 inch, Color: Dark Brown, Size: 15.7 inch
Ive had this shelf for 2 months now and love it! It looks grwat, was easy to put together and pretty sturdy.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Nice bathroom shelf!
Color: Dark Brown, Size: 15.7 inch, Color: Dark Brown, Size: 15.7 inch
This is really cute! It’s easy to hang
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Reviewed in the United States on April 21, 2026
★★★★★ 4
Nice shelves
Color: Black, Size: 15.7 inch, Color: Black, Size: 15.7 inch
My son has a small bedroom & not a lot of storage, so I was looking for something to hold his cologne & hair products, etc. I know these are ‘bathroom shelves’, but the black went well with his room decor. They look great & are exactly what he needed. They were easy to install & seem stable. The only slightly negative thing is the quality of the shelf part. It’s a cheap mdf-type material & had a couple areas that had the black paint scratched off, but it was so minor I’m fine with it. They look nice & have an industrial look, which is great for a boys room.
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Reviewed in the United States on January 14, 2025