Skip to content

Your cart is empty

Continue shopping

Have an account?

Log in to check out faster.

Your cart

Loading...

Order special instructions

Order special instructions

Subtotal

$0.00 USD

Taxes and shipping calculated at checkout

We do not show live inventory. Please contact us to confirm stock.

Home
About
Contact
Reviews
Products
Promotions

Facebook
Instagram
YouTube

Search

Home
About
Contact
Reviews
Products
Promotions

Search

Collection: 2017 - 20 Civic Si

Note: Products are sorted by Best Selling. You can change to by Alphabetical, Price, Brand, or Product Type.

Sort by:

412 products

Filter:

Product type (0)

Product type

Braking (47 products)
Chassis Bracing (14 products)
Decals (10 products)
Electronics (11 products)
Engine (94 products)
Exhaust Systems (24 products)
Exterior (24 products)
Interior (56 products)
Lighting (7 products)
Merchandise (1 product)
Suspension (57 products)
Tires (13 products)
Transmission (26 products)
Wheel Accessories (8 products)
Wheels (17 products)

Braking (47 products)
Chassis Bracing (14 products)
Decals (10 products)
Electronics (11 products)
Engine (94 products)
Exhaust Systems (24 products)
Exterior (24 products)
Interior (56 products)
Lighting (7 products)
Merchandise (1 product)
Suspension (57 products)
Tires (13 products)
Transmission (26 products)
Wheel Accessories (8 products)
Wheels (17 products)

Brand (0)

Brand

Price

The highest price is $5,099.99

$

From

To

Sort by:

Filter and sort Filter

Filter and sort

Filter

412 products

Product type

Braking (47 products)
Chassis Bracing (14 products)
Decals (10 products)
Electronics (11 products)
Engine (94 products)
Exhaust Systems (24 products)
Exterior (24 products)
Interior (56 products)
Lighting (7 products)
Merchandise (1 products)
Suspension (57 products)
Tires (13 products)
Transmission (26 products)
Wheel Accessories (8 products)
Wheels (17 products)

Clear

Brand

Clear

Price

The highest price is $5,099.99

$

From

$

To

Clear

Sort by:

Remove all

412 products

ACT Race (6-Puck Sprung) Clutch Kit | 16-22+ Civic 1.5T & Si, 23+ Integra A-Spec

Sale

ACT Race (6-Puck Sprung) Clutch Kit | 16-22+ Civic 1.5T & Si, 23+ Integra A-Spec

Vendor:
ACT

1 total reviews

Regular price From $1,118.00 USD

Regular price ~~$1,433.00 USD~~ Sale price From $1,118.00 USD
Unit price per

Sale
PRL High Performance 1.3 Bar Radiator Cap (Type-A) | 16-21 Civic, 17-23+ Civic Type R FK8 & FL5, 23+ Integra Type S DE5

PRL High Performance 1.3 Bar Radiator Cap (Type-A) | 16-21 Civic, 17-23+ Civic Type R FK8 & FL5, 23+ Integra Type S DE5

Vendor:
PRL Motorsports

No reviews

Regular price $26.99 USD

Regular price Sale price $26.99 USD
Unit price per
Wunderladen AEM In-Tank Fuel Pump (LPFP) | 16-21 Civic

Wunderladen AEM In-Tank Fuel Pump (LPFP) | 16-21 Civic

Vendor:
Wunderladen Racing

1 review

1 total reviews

Regular price $195.00 USD

Regular price ~~$180.00 USD~~ Sale price $195.00 USD
Unit price per
RV6 Preprogramed Speedo Corrector | 16-21 Civic 1.5T & Si

RV6 Preprogramed Speedo Corrector | 16-21 Civic 1.5T & Si

Vendor:
RV6

No reviews

Regular price $129.00 USD

Regular price ~~$129.00 USD~~ Sale price $129.00 USD
Unit price per
RV6 Speed Sensor Spacer | 16-21 Civic 1.5T & Si

RV6 Speed Sensor Spacer | 16-21 Civic 1.5T & Si

Vendor:
RV6

No reviews

Regular price $2.00 USD

Regular price ~~$1.00 USD~~ Sale price $2.00 USD
Unit price per
RV6 Helical Cut 3rd & 4th Gear Set | 16-21 Civic 1.5T & Si

RV6 Helical Cut 3rd & 4th Gear Set | 16-21 Civic 1.5T & Si

Vendor:
RV6

1 review

1 total reviews

Regular price $789.00 USD

Regular price ~~$699.00 USD~~ Sale price $789.00 USD
Unit price per
Hasport Full Engine Mount Kit | 17 - 21 Civic 1.5T & Si

Sale

Hasport Full Engine Mount Kit | 17 - 21 Civic 1.5T & Si

Vendor:
Hasport Performance

2 reviews

2 total reviews

Regular price $635.00 USD

Regular price ~~$705.56 USD~~ Sale price $635.00 USD
Unit price per

Sale
Project Mu Club Racer Rear Brake Pads | 16-21 Civic, 17-23+ Type R FK8 & FL5, 23+ Integra Type S DE5

Project Mu Club Racer Rear Brake Pads | 16-21 Civic, 17-23+ Type R FK8 & FL5, 23+ Integra Type S DE5

Vendor:
Project Mu

Regular price $185.00 USD

Regular price Sale price $185.00 USD
Unit price per
PRL Shift Knob | 16-22+ Civic, 18-22 Accord, 23+ Integra

PRL Shift Knob | 16-22+ Civic, 18-22 Accord, 23+ Integra

Vendor:
PRL Motorsports

Regular price From $74.99 USD

Regular price ~~$74.99 USD~~ Sale price From $74.99 USD
Unit price per
PRL MAF Housing Conversion Kit | 16-21 Civic 1.5T & Si

PRL MAF Housing Conversion Kit | 16-21 Civic 1.5T & Si

Vendor:
PRL Motorsports

1 review

1 total reviews

Regular price $249.99 USD

Regular price ~~$249.99 USD~~ Sale price $249.99 USD
Unit price per
Whiteline Control Arm Lower Inner Front Bushing | 16-21 Civic

Whiteline Control Arm Lower Inner Front Bushing | 16-21 Civic

Vendor:
Whiteline

Regular price $49.88 USD

Regular price ~~$48.88 USD~~ Sale price $49.88 USD
Unit price per
27WON Honda 4-BAR MAP Sensor | 16-22+ Civic, 18-22 Accord, 23+ Integra A-Spec

27WON Honda 4-BAR MAP Sensor | 16-22+ Civic, 18-22 Accord, 23+ Integra A-Spec

Vendor:
27WON

Regular price $172.71 USD

Regular price ~~$172.71 USD~~ Sale price $172.71 USD
Unit price per
27WON Master Cylinder Brace | 16-21 Civic

27WON Master Cylinder Brace | 16-21 Civic

Vendor:
27WON

1 review

1 total reviews

Regular price $82.71 USD

Regular price ~~$82.71 USD~~ Sale price $82.71 USD
Unit price per
27WON Exhaust | 17-20 Civic Si

27WON Exhaust | 17-20 Civic Si

Vendor:
27WON

No reviews

Regular price From $1,192.71 USD

Regular price ~~$1,192.71 USD~~ Sale price From $1,192.71 USD
Unit price per
Acuity Stage 2 Shift Kit | 16-21 Civic (non-Type R)

Acuity Stage 2 Shift Kit | 16-21 Civic (non-Type R)

Vendor:
Acuity Instruments

1 review

1 total reviews

Regular price $348.00 USD

Regular price ~~$348.00 USD~~ Sale price $348.00 USD
Unit price per
Superspeed Wheels 76RR | 16 - 22+ Civic, 23+ Integra A-Spec

Sale

Superspeed Wheels 76RR | 16 - 22+ Civic, 23+ Integra A-Spec

Vendor:
Superspeed Wheels

No reviews

Regular price From $235.00 USD

Regular price ~~$270.00 USD~~ Sale price From $235.00 USD
Unit price per

Sale

1
…
11
12
13
14
15
…
26

Installation Videos
Blog
Contact

Terms of Service
Shipping
Disclaimer

Unity Performance is not affiliated with any automobile manufacturers. Manufacturer names and/or part numbers are used only for identification purposes.

Facebook
Instagram
YouTube

Country/region

Country/region

Payment methods

© 2025, Unity Performance Powered by Shopify

Choosing a selection results in a full page refresh.
Opens in a new window.