Si Only | 9th Gen Civic Forum

Intakes and TB Spacers

9.1K

3.4M

1 mo ago

9.1K

3.4M

1 mo ago

Exhausts and Downpipes

11.4K

4.1M

1 d ago

11.4K

4.1M

1 d ago

Sticky Whats a good bolt on mod for the Civic SI ?

3K

546K

Sticky The Si 'What's My Next Mod?' thread

12

7K

full race replacement v-band clamp

SilentSeal
7 d ago
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1000cc injector with rbc need a base map help plz

11

233

by Twhite

What do I need to swap in type s oil pump

12

4K

by fkx

Ok RBC I UNDERSTAND, BUT WAT BOUT 2005 ACCORD INTAKE MANIFOLD???

6

9K

by fkx

Stage 3 action clutch - misfire code

2

290

by fb6ben

front and back bumper replacements options other than OEM? FG4

1

252

by kev604

2

581

by kev604

Skunk2 valve cover hardware fitment issue

0

444

2012 si having battery light issues, traction control issues speed sensor malfunctioning

7

502

by Kseries tice

9th gen Civic Si Hasport motor mounts w/ battery relocation kit

1

432

by TenZen

Anyone tried the new Hybrid Racing shifter!🤯

17

5K

ABS Control Modulator

1

309

by kev604

4

1K

Battery Relocation

12

4K

3

629

engine drain plug

6

638

by TenZen

0

388

Final drive swap

8

937

Clutch Suggestions?

11

3K

Oem clutch holding capacity?

1

537

by eyi526

2014 civic si clutch slipping-45k miles stock

9

910

by Big Banton Bey

Previous Owner's Modifications

12

2K

by EffBee6fromthe209

Any gains from the hondata flashpro on a stock si?

10

20K

by Teeps

Question about race batteries

0

692

4 Piston Racing new head program

8 9 10

191

26K

How to reach 300whp

8

2K

What does the button next to the aux do? *Updated*

19

2K

Upgrading Spark Plugs

3

1K

by Gh0st

K-Tuned / Hybrid Racing / Updated OEM CMC

9

2K

by themusicguy1989

Car running too rich under wot

9

1K

by 2013ACURAILX

1

790

10

1K

New guy questions

2

1K

Can I fix this noise?

12

2K

1

1K

by REDRICER1024