Bolt-Ons And All Motor

Getting Started On - Intakes, Exhausts, & Headers. All Motor Posts Go Here.

Intakes & TB Spacers

Aftermarket Intakes & Throttle Body Spacers
Threads
147
Messages
2.9K
Threads
147
Messages
2.9K
sunofwolf
K&N cold air intake

Exhaust & Downpipes

Discussion For Exhausts & Aftermarket Downpipes
Threads
289
Messages
5.4K
Threads
289
Messages
5.4K
squiggy
Anyone running Injen cat back?
Word3k
some more weird engine questions
Replies
4
Views
688
Word3k
Word3k
carpenj
2013 Si - Order of Mods
2
Replies
31
Views
18K
JayGeeisMe
JayGeeisMe
F
General Worries on install of bolt-ons
Replies
10
Views
1K
carpenj
carpenj
N
HELP FAST PLZZ!
Replies
12
Views
1K
fritz
fritz
cerezo28
First option?
Replies
19
Views
2K
cerezo28
cerezo28
EricMandery
SKUNK2 Exhaust & Greddy Momentum Intake
Replies
3
Views
2K
EricMandery
EricMandery
N
Help?
Replies
5
Views
778
webby
webby
wesellcarparts
Venair Coolant Hose Kits
Replies
17
Views
2K
bobshur
bobshur
Dennis Rockholt
First Mods??
Replies
19
Views
9K
squiggy
squiggy
DonDeeBoogie
K&N DROP IN FILTER
Replies
2
Views
1K
webby
webby
wesellcarparts
P2R Ported Intake Manifold
2 3
Replies
58
Views
10K
ickyhollow
ickyhollow
0260N5Si
Supercharger Options
Replies
1
Views
931
Dar-Dar
Dar-Dar
R
Hasport Rear Mount
2
Replies
20
Views
3K
axion_industries
axion_industries
2013_Si_Guy
flash pro vs. rv6 dp?
2
Replies
28
Views
6K
njhustler
njhustler
KylePriceSi
Ignition and Fuel.
Replies
11
Views
1K
webby
webby
Minty23
How much power could I gain ?
Replies
11
Views
2K
webby
webby
red13devil
Prl rbc conversion
Replies
17
Views
2K
TheSlowAndTheSerious
TheSlowAndTheSerious
njhustler
Cold air / ram air tube
Replies
17
Views
2K
jnastii
jnastii
tsumaku
Full si coupe exhaust system on r18 sedan
Replies
7
Views
1K
tsumaku
tsumaku
KylePriceSi
Just starting out.
Replies
2
Views
635
Dar-Dar
Dar-Dar
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