Parts graph
4G63T
The 4G63T in the CP9A/CT9A Evolution is a rally-homologation 2.0L turbo four that runs ~280whp on bolt-ons with the stock 16G, 400-450whp on stock-frame FP Green/Red upgrades, and 550whp+ with a built bottom end behind an open-manifold big single. The real gates in the graph are fueling (stock 560cc injectors go static by ~380whp), engine management (EcuFlash/Tactrix on CT9A, standalone on CP9A which has no reflash path), valve springs for 272-class cams, and the AWD driveline — transfer case and ACD/AYC fluid history decide whether launches are a party trick or a tow bill.
Compatibility intel 18 edges
The rules that make combinations work — or not. This is the knowledge that used to live in dead forum threads.
- Kelford 272 Camshaft SetrequiresGSC Power-Division Beehive Spring Kit w/ Ti Retainers272 degrees of duration floats the stock springs by ~7,500rpm, and a kissed valve on a 4G63 means the head comes off at minimum.
- Kelford 272 Camshaft SetrequiresTactrix Openport 2.0 (EcuFlash/EvoScan)Big cams shift the whole VE curve; on the stock map they hunt at idle and give back the midrange you paid for.
- ETS Turbo Kit w/ Precision PT6266 Gen2recommendsKelford 272 Camshaft SetA 6266 runs out of stock-cam head flow up top; 272s move the powerband to where the big single actually lives.
- FP Green Turbocharger (TD05HR stock frame)requiresID1050-XDS Injectors (set of 4)The stock 560cc injectors go static around 380whp on pump gas — the Green pegs them before it peaks.
- ETS Turbo Kit w/ Precision PT6266 Gen2requiresETS 3.5in Front Mount Intercooler + PipingThe factory core is honest to about 400whp; past that, pressure drop and heat soak climb faster than boost does.
- ETS Turbo Kit w/ Precision PT6266 Gen2requiresManley 2.3L Stroker Kit (94mm crank, Turbo Tuff rods, forged pistons)Cast pistons and stock rods at 600whp is no longer a tolerance debate — this is exactly how 4G63s window blocks.
- FP Green Turbocharger (TD05HR stock frame)recommendsManley 2.3L Stroker Kit (94mm crank, Turbo Tuff rods, forged pistons)Stock-block 400whp is proven on a good tune; the honest 7-bolt worry is rod bearings under sustained high rpm, not the DSM crank-walk ghost.
- Zeitronix ECA-2 Flex Fuel Kit (GM sensor)requiresWalbro 450LPH E85 Pump (F90000274)E85 needs roughly 35% more volume at the same power; the 20-year-old lift pump is done by ~350whp on ethanol.
- Zeitronix ECA-2 Flex Fuel Kit (GM sensor)requiresLink G4X EvoLink Plug-In ECUTrue blend tables are standalone territory — ROM flex patches exist for late CT9A, but CP9A has no reflash path at all.
- ID1050-XDS Injectors (set of 4)requiresTactrix Openport 2.0 (EcuFlash/EvoScan)Dead times and injector scaling must be flashed before first crank, or 1050s wash the cylinders on a cold start.
- Exedy Hyper Compe-D Twin Plate ClutchrecommendsEvo Transfer Case Rebuild (exchange service)Added clamp force sends launch shock straight into a 20-year-old viscous coupling; drag launches on an unserviced case are a countdown.
- Feal 441+ Coilovers (Rally/Gravel Spec)conflictsOhlins Road & Track DFV CoiloversPick a surface: gravel travel and soft rebound wallow on circuit, while tarmac valving skips over washboard and cases jumps.
- FP Red Turbocharger (TD05HR stock frame)conflictsETS Turbo Kit w/ Precision PT6266 Gen2Stock-frame Red and the T4 open-manifold single are competing answers to the same hotside — buying both means you chose twice.
- 4G63TrecommendsDiaQueen ACD/AYC Fluid Service KitAYC pumps die of neglected fluid, not use — a $135 flush beats a $2,500 rear differential every time.
- Omni Power 4-Bar MAP Sensor (Speed Density)requiresTactrix Openport 2.0 (EcuFlash/EvoScan)The 4-bar sensor is dead weight without the speed-density ROM patch — SD lives in the flash, not the sensor.
- ETS Turbo Kit w/ Precision PT6266 Gen2recommendsOmni Power 4-Bar MAP Sensor (Speed Density)Big singles out-flow the Karman vortex MAS metering range; speed density is how 500whp-plus CT9As meter air.
- ETS Turbo Kit w/ Precision PT6266 Gen2requiresExedy Hyper Compe-D Twin Plate Clutch500lb-ft through an organic street disc glazes it in a week of boost; a twin-plate is the entry fee at this torque.
- Zeitronix ECA-2 Flex Fuel Kit (GM sensor)unlocksFP Green Turbocharger (TD05HR stock frame)E85's knock resistance lets the Green hold boost and timing it could never keep on 93 octane — the cheapest 40whp on the platform.
Manufacturer application charts 5 records
Fitment straight from the manufacturers’ current application pages — chart-level ground truth for this platform.
- CP9ACT9A
Application is stated for Lancer Evolution V–IX; chassis codes collapse those models to CP9A and CT9A.
- CD9ACE9ACN9ACP9ACT9ACT9W
The manufacturer chart explicitly enumerates these chassis.
- CT9A
Application page covers Evolution VII, VIII and IX.
- CT9A
Application page covers Lancer Evolution VII and VIII CT9A.
- S15AP1FD3SCN9ACP9A
Requested chassis extracted from the official application PDF; engine codes are not asserted in that chart.
Turbo & power
FP Green Turbocharger (TD05HR stock frame)
Forced Performance
The default first real turbo — stock-frame TD05HR bolt-on, ~400whp on E85 with supporting mods, full spool by ~4,000rpm.
FP Red Turbocharger (TD05HR stock frame)
Forced Performance
The Green's bigger brother: same stock-frame fitment, ~450whp ceiling, trades roughly 300rpm of spool for the extra top end.
ETS Turbo Kit w/ Precision PT6266 Gen2
Extreme Turbo Systems
T4 open-manifold big-single kit; 550-600whp territory that turns a street Evo into a build project.
Engine internals
Kelford 272 Camshaft Set
Kelford Cams
The classic 4G63 big-cam spec — noticeable lope, moves power up ~700rpm, and absolutely demands springs plus a retune.
GSC Power-Division Beehive Spring Kit w/ Ti Retainers
GSC Power-Division
Beehive design cuts retainer mass; controls 272-class cams to 8,000rpm without a punishing seat-pressure penalty.
Manley 2.3L Stroker Kit (94mm crank, Turbo Tuff rods, forged pistons)
Manley Performance
2.3L of torque that makes a big single act like a 16G downstairs; machine work and assembly not included in the price or the difficulty rating.
Injectors
ID1050-XDS Injectors (set of 4)
Injector Dynamics
Drop-in height for the 4G63 rail, E85-compatible internals, and the characterization data tuners actually trust; ~550whp on ethanol.
Fuel system
Walbro 450LPH E85 Pump (F90000274)
TI Automotive (Walbro)
Hides in the stock hanger with light modification and out-flows ethanol demand to ~650whp.
Zeitronix ECA-2 Flex Fuel Kit (GM sensor)
Zeitronix
GM flex sensor inline in the feed line with ethanol-content output the ECU or a gauge can read — E85 blending without guesswork.
Engine management
Link G4X EvoLink Plug-In ECU
Link Engine Management
Plug-in standalone for Evo 4-9 harnesses; flex fuel, boost-per-gear, and antilag without cutting a wire.
Tactrix Openport 2.0 (EcuFlash/EvoScan)
Tactrix
The $185 cable behind the entire CT9A reflash scene; CP9A predates the flashable ROM era — those cars go standalone (the ECMLink path stayed with DSM-era ECUs).
MAF & sensors
Omni Power 4-Bar MAP Sensor (Speed Density)
Omni Power
Enables speed density via ROM patch and deletes the restrictive Karman vortex MAS along with its metering ceiling.
Intercooler
ETS 3.5in Front Mount Intercooler + Piping
Extreme Turbo Systems
3.5in core with mandrel-bent piping replacing the crush-bent factory hot pipe — the honest fix once you pass what the OEM core handles.
Clutch
Exedy Hyper Compe-D Twin Plate Clutch
Exedy
Cerametallic twin that holds 600whp AWD launches with firm-but-streetable manners; 5-speed pattern — verify MR 6-speed fitment separately.
Drivetrain
Evo Transfer Case Rebuild (exchange service)
Jacks Transmissions
Fresh bearings, seals, and viscous coupling inspection — the service history most used Evos are missing when they arrive.
DiaQueen ACD/AYC Fluid Service Kit
Mitsubishi
OEM DiaQueen fluid for the ACD and AYC hydraulics; the pumps fail from old fluid long before they fail from use.
Suspension
Ohlins Road & Track DFV Coilovers
Ohlins
DFV damping is the tarmac benchmark for the CT9A — compliant on the street, composed at track pace.
Feal 441+ Coilovers (Rally/Gravel Spec)
Feal Suspension
Gravel-spec valving and extra travel, built per order in the US — the accessible rallycross and stage-rally answer.
Brakes
Girodisc 2-Piece Front Rotors (Evo Brembo)
Girodisc
Two-piece rotors for the factory Brembo caliper; sheds ~5lb per corner and takes track heat the OEM blanks can't — pair with Project Mu or PFC pads.
Wheels
Enkei RPF1 17x9 +35 (set of 4)
Enkei
The rally-bred pallet-stack special: ~17lb in 17x9, clears the Brembos, and square 255s fit all four corners.
Prices are typical 2026 USD street prices. Fitment data is community-sourced tuning knowledge, not a guarantee — verify with your tuner before ordering. Marketplace links (Yahoo Japan, UpGarage, Nengun, RHDJapan, eBay) land here next.