Quote:
Originally Posted by DohcTor
@ tahdizzle lol ... Fail. Nice try though.
I'll look for some real dynos later, just for you mate.
I've seen the 2006 civic si hit 240 WHP with;
- 3.5" intake
- 3" header-back exhaust
- cam upgrade
- intake manifold upgrade
- Flashpro
At this point , they can raise their rev limit to nearly 10k too which is pretty dam cool if you ask me
Here we see a pretty conservative build using the mods i listed above. With e85 @ a better tuner he could hit 250WHP on a N/A 2Liter 
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Engine: K20Z3
Intake: Stock with K&N Filter
Exhaust: Kidd Racing Dominator Header, Go Power Motorsports Exhaust
Valvetrain: Brian Crower
Bottom end: Stock
Engine management system: Hondata Flashpro
Other engine and drivetrain mods: Brian Crower Stage 2 Cams
Track info: None
Dyno Type: Dyna Pack
This is the info on the mods to go with that tune.....
Valvetrain, and Cams I guess are "Bolt-Ons" since you technically only have to remove some bolts.
***Updated 7/26/09***
Engine:K20Z3
Intake: T1R CF Intake
Exhaust: KiddRacing Header + test pipe + GReddy Spectrum Elite 60mm exhaust
Valvetrain: Toruku Street Cams, Stock Valvetrain
Bottom end: Stock
Engine management system: Hondata FlashPro
Fuel system: Stock
Other engine and drivetrain mods: P2R throttle body spacer + gaskets, Boomba Racing Motor Mounts
Track info: N/A

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Here is another Civic Si w/ pretty much the same mods and a tune. But the one you posted is "Conservative".