Si Only | 9th Gen Civic Forum

Intakes and TB Spacers

8.9K 2.9M

19 h ago

8.9K

2.9M

19 h ago

Exhausts and Downpipes

10.8K 3.4M

17 d ago

10.8K

3.4M

17 d ago

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

3K

510K

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

12

5K

Fist car.first manual. 13 si tips welcome.

–

–

N/A

4 Piston Racing new head program

3 4 5

92

7K

Starter relay location

0

118

by Blue_9th_gen

Battery Relocation

11

316

by fahnix

K24Z7 electric water pump finally possible

11

411

by TenZen

Need Help Identifying Fuel Injectors

11

469

2015 Si Power Mods

16

1K

Getting tired of slowness

6

618

by TenZen

Buddy Club Shifter parts

3

438

by eyi526

My FBO E85 people what spark plugs are you running?

2

283

by Giduo

2013 si feeling loss power

16

641

Innovative motor mounts

13

968

Back to Stock Rear Motor Mount and VERY pleased

2

22

10K

Stock exhaust size and weight?

2

32

30K

by 9thgensifamily

K24Z7 - NA Power Potential?

16

18K

by 9thgensifamily

Anyone delete the resonator from Full Race catback?

1

468

by Blue civic si

The worst has happened, engine failure!!!! What are my options

2 3

53

2K

by Giduo

Tranny noise loudest on decel

5

530

by 9thgensifamily

Rebuilding My K24Z7 Due To Oil Consumption, Here's The Plan, Any Other "While I'm In There" Mods?

4

1K

17

13K

Acuity Instruments Fuel Rail Install

6

1K

by TenZen

Great coil over for daily driving

1

647

My 2015 Civic Si simple build! Enjoy,

2

24

5K

by fahnix

5

1K

Recommended bolt ons to do?

7

1K

by Kevlar

Hasport rear motor mount failure and other entrails....

1

687

by Kevlar

Any gains from the hondata flashpro on a stock si?

8

9K

Question about Acuity Air Intake

2

745

Acuity transmission parts

13

2K

rv6 downpipe exhaust leak?

12

1K

Introducing my build

2

22

3K

by 9thgensifamily

Alpha series header

19

2K

by Drummy

0

474

K tuned exhaust / downpipe

1

783

Full Race 3" Catback Exhaust

0

718