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See update at bottom of post December 2020 Credit to member Hickster for the list. HONDA CIVIC 'M' SERIES COMPATIBILITY DATABASE Civic5 accepts no responsibility for any inaccuracies or omissions from this database and all that STEERING AND SUSPENSION COMPONENTS *Wheel and tyre info....Stock ET is 45 for all M's (widest recommended rim with this et is 6.5" at r15? ). DC2 alloys need spacers to fit over 282 calipers *Springs and shock absorbers....Same as dc2/eg/ek/ej/400/45/zs. DC2 coilovers will need the Integra LCA. Matched springs and shocks are specific to the weight of the model so Aerodeck are different as are other civics or Integras. *Front upper wishbone....Same as dc2/eg/400/45/zs. EK is different the bushes are pressed into the arm. *Front lower wishbone....Same as dc2/eg/ek/ej/400/45/zs *Front hub carrier and balljoints....Same as dc2/eg/ek/ej/400/45/zs *Hubs....All M's use 4 x100 pcd hubs from contemporary civics except the MB6 which uses 4 x 114.3 (4.5") pcd hubs from the Integra and Prelude. *Front ARB....Same as dc2/eg/ek/ej/400/45/zs. To upgrade arb size you will need to change the body mounting bushes *Rear ARB....Same as dc2/eg/ek/ej/400/45/zs. To upgrade arb size you will need to change the body mounting bushes. *Front suspension bushings....Same as dc2/eg/ek/ej/400/45/zs *Track rod ends....Same as 45/400/zs *Steering rack...Same as 45/400 *PAS pump...Non Honda engined Rovers use flexible hosing (mounted on right of engine) *Rear trailing arm....Same as dc2/eg/ek/ej/400/45/zs. Drum versions can not be converted to disc. *Rear upper control arm....Same as dc2/eg/ek/ej/400/45/zs *Rear lower control arm....Same as dc2/eg/ej/400/45/zs. Some LCA's do not have a mounting for an ARB. *Rear toe adjuster....Same as dc2/eg/ek/ej/400/45/zs *Trailing arm (compliance) bush....Same as dc2/eg/ek/ej/400/45/zs *Rear suspension bushes....Same as dc2/eg/ek/ej/400/45/zs BODY PANELS AND LIGHTS *Front bumper....All different, to change MA to MB you also need to change bonnet (and front crossmember?) MB6 front lips will not fit the MA without modification. *Rear bumper....MB will fit MA *Sideskirts........MA/MB/45/400/ZS all fit the same mounting points. Vti-s and ZS180 having variations in style. *Front wings....All different *Bonnet....All different. *Bonnet catch and struts....MA/MB/45/400/ZS all same. Catch lever varies on MA. *Scuttle cover....MA/MB/45/400/ZS all same *Windscreen....MA/MB/45/400/ZS all same *Door glass.... MA/MB/45/400/ZS all same *Tailgate....MA/MB same apart from number plate surround. *Tailgate catch and struts....MA/MB/45/400/ZS all same, all standard struts will take the weight of the standard vti spoiler. *Doors.... MA/MB/45/400/ZS all same *Headlights.... MA/MB slightly different outer shape. There are no aftermarket headlights. *Taillights....MB fit MA, MB have clear indicators, MA amber. *Side repeaters.... MA/MB/45/400/ZS all same *Fog lights....MA and MB have slightly different surrounds? *Wing mirrors.... MA/MB/45/400/ZS all fit same, some electric, some manual *Sunroof.... MA/MB/45/400/ZS same. *Handles and other trim pieces.... MA/MB/45/400/ZS same apart from number plate surrounds/ rear light trims. INTERIOR *Front seats and rails....MA/MB/400/45/ZS same fitting. Other Honda seats will need modification to the rails. *Rear seats and rails....MA/MB same ZS will not fit. *Centre console....MA/MB/400/45/ZS same fitting. Some models have a centre arm rest that fits all M's *Dashboard....MA/MB/400/45/ZS same fitting. The MB6 vti-s has carbon dash inserts. *Steering wheel....MA/MB same MB6 has leather finish. Rover will fit but are trispoke so you will not be able to get rid of the Rover airbag and logo. (DC2 will fit with modification?) *Steering column....MA/MB/400/45/ZS same *Switches etc....MA/MB/400/45/ZS same *Instrument cluster....MA/MB/400/45 same. (ZS 180 and MB6 have different tacho's?) *Door cards....MA/MB/400/45/ZS same *Pillar trims....MA/MB/400/45/ZS same *Headlining....MA/MB/400/45/ZS same *Rear mirror....MA/MB/400/45/ZS same *Parcel shelf....MA/MB *Audio components....MA/MB/400/45/ZS same. The MB6 and some Rovers have better speakers and door tweeters that fit all M's. BRAKING COMPONENTS *Front discs....262 except MB6 which uses the 282 system. Some companies make 282 rotors to fit 4x 100 hubs (generally as an upgrade to EG civics) *Rear discs/drums *Front calipers....Single pot lucas 262 system. Same as 400/45/ZS/EG/EK. 282 for MB6. *Rear calipers....Same as 400/45/ZS/EG/EK/EJ. *Master cylinder....Same as 400/45/ZS/EG/EK/EJ.(?) Does the 'teg use this too? *Brake fluid.... *Brake hoses....Same as 400/45/ZS/EG/EK. Drum and disc versions are different. ECU AND ELECTRICAL OBD Loom/ aftermarket wiring Lamda IACV FIT VTEC controlers Fuses and resistors Battery Alternator D SERIES ENGINES- D14A2, D14A4, D14A3 (EDM), D14A8, D15Z1, D15Z8, D16B2, D16Y5. Engine mounts Sparkplugs Engine oil Oil filter Fuel filter Distributer HT leads Valves and valvetrain parts Cam Cambelt Cam gears Crank Pistons Con rods Intake Throttle body Intake manifold Radiator Fan Thermostat Coolant FI info B SERIES ENGINES- B18C4 Same sort of stuff TRANSMISSION COMPONENTS Shifter UJ Shift rod Extension rod Shift bushings Clutch Master cylinder Reservoir Release cylinder Gearbox Gearbox oil Driveshafts EXHAUST COMPONENTS Manifold....B and D series engines use a slightly different manifold Cat section....UKDM cat (different length from the JDM cat) Mid section....MA/MB all same (?) do rover fit? Backbox....MA/MB all same except Aerodeck which has a longer tail (?) There's probably a lot I've missed off, might be best to improve it as we fill out the list? We probably ought to have glossary for terms (stuff like DC2, EG, ITR, IM, PCD) to make it accessible for noobs and non Honda geeks UPDATE 8/12/2020: REPAIR PANELS: Brand new sills: https://www.ebay.co.uk/itm/143504334196