Build types and Parts Combinations for the 2006-2011 Civic Si, K20Z3, FA5 / FG2

Stock

Stock, Bone Stock

Factory K20Z3, PRB/RRB-style intake system, factory header/catalyst/exhaust, factory calibration

2006-2011 Si

170-200

170-200

Mild street build

OEM+, Stockish

Drop-in filter or mild intake, axle-back/cat-back, shifter bushings, engine mounts, FlashPro calibration

2006-2011 Si

170-200

180-205

Intake build

CAI Build, Intake + Tune

Hybrid Racing CAI, Injen CAI/SRI, FlashPro, MAP-based calibration where required

2006-2011 Si

170-200

185-210

Intake + exhaust

I/E

CAI/SRI, 70-76 mm cat-back, FlashPro calibration

2006-2011 Si

170-200

190-210

Intake/header/exhaust

I/H/E

Hybrid Racing/Injen intake, Skunk2 Alpha or similar header, 2.5-3 inch exhaust, FlashPro

2006-2011 Si

170-200

205-220

Full bolt-on

FBO

3-3.5 inch CAI, race header, 70-76 mm exhaust, FlashPro, optimized fuel/ignition/VTC

2006-2011 Si

170-200

210-225

Max-effort bolt-on

Max-Effort FBO

Hybrid Racing 3.5-inch-type intake, RBC/RRC or ported manifold, larger throttle body, high-flow header, 3-inch exhaust, aggressive NA calibration

2006-2011 Si

170-200

215-230

Drop-in cam

Cammed, Cam-Only

Drag Cartel drop-in cams or similar, FlashPro, preferably intake/header/exhaust

2006-2011 Si

170-200

215-230

FBO + cams

Cammed FBO, All-Motor

Drag Cartel/Skunk2/BC cams, springs/retainers as required, large CAI, manifold, throttle body, header, exhaust, FlashPro

2006-2011 Si

170-200

225-245

High-compression K20

High Comp, High-Comp K20

CP/JE/Wiseco pistons, forged rods where desired, cams, Supertech/Ferrea valvetrain, ported head, intake manifold, large TB, race header

2006-2011 Si

170-200

235-260

Max-effort NA K20

Built All-Motor, NA Monster

12+:1 compression, forged rotating assembly, ported head, aggressive cams, valvetrain, large manifold/TB, 3.5-inch intake, race header, E85 or high-octane fuel where appropriate

2006-2011 Si

170-200

245-270+

Basic K24 swap

K24 Swap, 2.4 Swap

JDM K24A/K24A2-type engine, K20Z3 transmission, 50° VTC where appropriate, PRB/RRC oil-pump conversion, RBC manifold, CAI, FlashPro

2006-2011 Si

170-200

220-245

K24/K20 hybrid

Frankenstein, K20/K24, K24/K20

K24 block, K20Z3/K20A2-style head, K-series oil-pump conversion, K20-compatible pan/header arrangement, intake/manifold/TB, FlashPro

2006-2011 Si

170-200

230-255

Cammed K24/K20

Cammed Frankenstein, All-Motor 2.4

K24 bottom end, K20 head, Drag Cartel/Skunk2/BC cams, upgraded valvetrain, 50° VTC, RBC/RRC manifold, large TB, header, large exhaust

2006-2011 Si

170-200

245-275

High-compression K24/K20

Big NA K, Built Frankenstein

Forged high-compression K24, K20 head, aggressive cams, porting, upgraded valvetrain, large intake/manifold/TB, race header, E85 or high-octane fuel

2006-2011 Si

170-200

260-300+

Low-boost turbo

Low Boost, Stock-Block Turbo, SBT

Small turbo, manifold, 38-44 mm wastegate, BOV, FMIC, charge piping, 3-inch downpipe, injectors, pump, FlashPro

2006-2011 Si

170-200

280-350

Street turbo

Street Turbo

Garrett G/GTX, Precision or BorgWarner turbo, tubular/cast manifold, wastegate, BOV, FMIC, 1000+ cc injectors, pump, clutch, FlashPro

2006-2011 Si

170-200

350-450

Stock-block high-output turbo

Stock Block, SBT

Mid-size turbo, high-flow manifold, intercooler, 3-inch+ exhaust, 1000-1700 cc injectors, large pump, boost control, clutch

2006-2011 Si

170-200

400-500+

Built-bottom turbo

Built K, Built Turbo

Forged pistons, forged rods, bearings, ARP hardware, valvetrain, turbo system, large injectors, return fuel system where needed

2006-2011 Si

170-200

450-650+

Sleeved turbo

Sleeved K, Big-Power K

Darton/aftermarket sleeves, forged pistons/rods, head studs, built head, large-frame turbo, return fuel system, upgraded transmission/clutch

2006-2011 Si

170-200

600-900+

Extreme drag turbo

Drag K, Big Turbo K

Sleeved block, large-frame turbo, race manifold, large wastegate(s), mechanical fuel system/large EFI fuel system, dogbox/gearset, drag clutch, slicks

2006-2011 Si

170-200

700-1000+ depending build

Rotrex supercharger

Rotrex Build, Kraftwerks Build, Centri

Rotrex C30-94, Kraftwerks manifold, 110 mm pulley, intercooler, piping, bypass valve, 1000 cc injectors, upgraded pump, FlashPro

2006-2011 Si

170-200

340-380

Pulleyed Rotrex

Pulleyed Kraftwerks, High-Boost Rotrex

C30-94, smaller pulley where appropriate, header/exhaust, larger injectors, fuel pump, upgraded clutch, custom calibration

2006-2011 Si

170-200

375-425+

Built Rotrex

Built Centri, Big Rotrex

Forged engine, upgraded valvetrain, high-flow fuel system, C30/C38-series supercharger depending fabrication, intercooler, custom tuning

2006-2011 Si

170-200

400-550+

E85 NA

Corn-Fed NA, E85 All-Motor

FBO or cams, ethanol-compatible injectors/pump, E85 calibration

2006-2011 Si

170-200

220-260 depending engine

E85 turbo

Corn-Fed Turbo, E85T

Turbo kit, 1300-2200 cc-class injectors depending target, high-flow pump(s), ethanol-compatible fuel system, FlashPro

2006-2011 Si

170-200

350-700+

Flex-fuel

Flex Build

Ethanol-content sensor/interface, larger injectors, pump, compatible fuel hardware, flex-fuel calibration

2006-2011 Si

Depends on base build

Depends on engine/boost

Road-course NA

Track Build, Circuit Build

FBO/NA power package, baffled pan, oil cooler, radiator, gauges/logging, brakes, suspension, LSD

2006-2011 Si

170-200

205-240

Road-course FI

Boosted Track Build

Conservative turbo/Rotrex setup, intercooler, oil cooler, radiator, baffled pan, brake cooling, moderate boost

2006-2011 Si

170-200

280-400

Sleeper

Sleeper Build

Stock exterior/interior, quiet exhaust, concealed turbo/Rotrex components where practical, upgraded fuel system and calibration

2006-2011 Si

170-200

300-500+