Mounting flanges, intake manifolds, intake carb holders, velocity stacks, air filters
LOTS OF PARTS ON THIS PAGE PLEASE SCROLL DOWN ALL THE WAY
Velocity stacks
Air filters
Mikuni rubber mounting flanges
Harley-Davidson mikuni
Amal to mikuni rubber mounting flanges
ATV intake manifold flange
Street intake manifold flange
Offroad intake manifold flange
Carb boots for Yamaha YFZ350 Banshee
Hose clamps
FCR-MX aluminum mounting flanges and bells
CR special carb spigots
Mikuni rubber mounting flanges | |||||||
(A) 8.5mm bolt hole center to center spacing | Carb bore size | (I) Carb spigot diameter | (G) Flange throat depth | Flange throat dia | Typical carb size reference no. | Mikuni no. | Order no. |
60 | 30 | 35 | 28 | NA | 26-28 | M-VM28-200K | 002-050 |
57 | 30 | 37 | 23 | NA | 26-28 | 990-842-046 | 002-051 |
75 | 34 | 40 | 32 | NA | 30-34 | 990-842-007 | 002-052 |
60 | 36 | 40 | 25 | NA | 30-34 | M-VM-34-200K | 002-053 |
70 | 40 | 43 | 25 | NA | 36-40 | M-VM-36-200K | 002-054 |
75 | 40 | 43 | 28 | NA | 36-38 | I-VM-38-200-1 | 002-055 |
75 | 46 | 52 | 32 | NA | 40-44 | M-VM40-200K | 002-056 |
70-75 | 40 | 43 | 28 | NA | 36-40 | KHS-004 | 002-986 |
70-75 | 42 | 45 | 25 | round | 42 | HS42/018-42K | 007-460 |
70-75 | 42 | 45 | 25 | oval | 42 | HS42/062-42K | 007-468 |
70-75 | 45 | 48 | 25 | round | 45 | HS42/018-45K | 007-461 |
70-75 | 45 | 48 | 25 | oval | 45 | HS42/062-45K | 007-469 |
70-75 | 48 | 52 | 25 | oval | 48 | HS42/062-48K | 007-467 |
Amal to Mikuni Rubber Mounting Flanges | |||||||
VM30 50.80 (2”) | 30 | 40 | 24 | 30 | NA | VM30 | 005-801 |
VM30 50.80 (2”) | 32 | 40 | 24 | 34 | NA | VM32 | 005-802 |
ATV Intake Manifolds |
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Model | Year | Carb application | Qty | Order No. |
ARCTIC CAT |
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DVX400 | 03-08 | Stock | 1 | 11-6183 |
HONDA |
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Honda ATC250R | 85-86 | PWK 38 - 39mm | 1 | 005-831 |
Honda TRX250R | 86-89 | PWK 38 - 39mm | 1 | 005-831 |
TRX400FA/FGA Rancher AT | 04-07 | Stock | 1 | 11-3608 |
TRX420FA/FPA 4 Trax Rancher | 07-10 | Stock | 1 | 11-3608 |
TRX420FE Rancher 420 ES | 07-10 | Stock | 1 | 11-3639 |
TRX420FM Rancher 420 | 07-09 | Stock | 1 | 11-3639 |
TRX420FPE/FPM Rancher 420 | 09-10 | Stock | 1 | 11-3639 |
TRX420TE/TM Rancher 420 | 07-10 | Stock | 1 | 11-3639 |
TRX450R | 04-05 | Stock | 1 | 11-3638 |
TRX500FA Foreman Rubicon | 01-09 | Stock | 1 | 11-3616 |
TRX500FGA Foreman Rubicon | 04-08 | Stock | 1 | 11-3616 |
TRX500FM Foreman 4X4 | 05-08 | Stock | 1 | 11-3610 |
TRX500FPA Foreman Rubicon | 09 | Stock | 1 | 11-3616 |
TRX500FPE/FPM Foreman | 07-09 | Stock | 1 | 11-3610 |
TRX500TM Foreman | 05-06 | Stock | 1 | 11-3610 |
TRX650FA Fourtrax Rincon | 03-05 | Stock | 1 | 11-3618 |
TRX650FGA Fourtrax Rincon | 04-05 | Stock | 1 | 11-3618 |
TRX700XX | 08-09 | Stock | 1 | 11-3641 |
KAWASAKI |
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KFX400 | 03-08 | Stock | 1 | 11-6183 |
KVF400 PRAIRIE - 2WD/4X4 | 97-02 | Stock | 1 | 11-3667 |
KFX450R KSF450B | 08-12 | Stock | 1 | 11-3666 |
KFX450R KSF450B Monster Energy | 09 | Stock | 1 | 11-3666 |
SUZUKI |
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LT-A400F King Quad Auto | 11 | Stock | 1 | 11-6185 |
LT-F400F King Quad | 11 | Stock | 1 | 11-6185 |
LT-Z400 Quadsport | 03-08 | Stock | 1 | 11-6183 |
YAMAHA |
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YFA1 Breeze | 89-03 | Stock | 1 | 11-3650 |
YFM125G Grizzly 125 | 04-11 | Stock | 1 | 11-3650 |
Yamaha YFS200 Blaster | 88-06 | Stock | 1 | 005-840 |
YFM250R Raptor 250 | 08-11 | Stock | 1 | 11-3655 |
YFM250X Beartracker | 99-04 | Stock | 1 | 11-3658 |
YFM350ER Moto-4 | 87-95 | Stock | 1 | 11-4200 |
YFM350FW Big Bear 4WD | 87-97 | Stock | 1 | 11-4200 |
YFM350FX Wolverine | 95 | Stock | 1 | 11-4202 |
YFM350U Big Bear 2WD | 96-98 | Stock | 1 | 11-4200 |
YFM350X Warrior | 87-04 | Stock | 1 | 11-4202 |
YFZ350 Banshee | 87-05 | Stock | 2 | 11-4221 |
Yamaha YFZ350 Banshee | 87-06 | Stock, PWK28, with boost holes at top | 2 | 005-835 |
Yamaha YFZ350 Banshee | 87-06 | PJ34, PWK33 - 35, TM34. With boost holes at top | 2 | 005-836 |
Yamaha YFZ350 Banshee | 87-06 | PJ34, PWK33 - 35, TM34. No boost holes at top | 2 | 005-837 |
Yamaha YFZ350 Banshee | 87-06 | PWK38 - 39, TM38, TM34. No boost holes at top | 2 | 005-844 |
YFZ350 Banshee mounts to stock airbox | 87-06 | Stock, PWK28 | 2 | 005-845 |
YFZ350 Banshee mounts to stock airbox | 87-06 | PJ34, PWK33 - 35, TM34 | 2 | 005-846 |
YFM400A Kodiak 2WD | 00-04 | Stock | 1 | 11-3663 |
YFM400F Kodiak 4WD | 93-98 | Stock | 1 | 11-4200 |
YFM400F Kodiak 4WD | 00-06 | Stock | 1 | 11-3663 |
YFM4FG Grizzly 400 4WD | 07-08 | Stock | 1 | 11-3663 |
YXR45F Rhino 450 Side X Side | 06-09 | Stock | 1 | 11-3646 |
YFM450F Kodiak 4WD | 03-06 | Stock | 1 | 11-3663 |
YFM450FX Wolverine 4WD | 06-09 | Stock | 1 | 11-3663 |
YFM45FG Grizzly 450 | 07-12 | Stock | 1 | 11-3663 |
YFM55G Grizzly 550 | 09-11 | Stock | 1 | 11-3665 |
YFM600F Grizzly 600 | 98-00 | Stock | 1 | 11-3657 |
YFM660F Grizzly 660 | 02-08 | Stock | 1 | 11-3664 |
YXR660 Rhino Side X Side | 04-07 | Stock | 1 | 11-3664 |
YFM7FG Grizzly 700 | 07-11 | Stock | 1 | 11-3649 |
YXR7F Rhino 700 FI Side X Side | 08-11 | Stock | 1 | 11-3659 |
Street Intake Manifolds |
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Model | Year | Carb application | Order No. | |
Harley Davidson |
Mikuni number | |||
H-D® HSR42 to 2 bolt flange round | 007-460 | HS42/018-42K | ||
H-D® HSR45 to 2 bolt flange round | 007-461 | HS42/018-45K | ||
H-D® HSR48 to 2 bolt flange (oval) | extra clamp order 007-498 | 007-467 | HS42/062-48K | |
H-D® HSR42 to 2 bolt flange (oval) | 007-468 | HS42/062-42K | ||
H-D® HSR42 to 2 bolt flange (oval) 007-469 | 007-469 | HS42/062-45K | ||
Intake manifold for HSR42/45 Twin Cam with MAPS hole HS42/061-45TC | 007-457 | HS42/061-45TC | ||
Intake manifold for HSR42/45 Evo style without hole HS42/061-45 | 007-459 | HS42/061-45 | ||
Other manifolds and flanges for H-D | ||||
Honda |
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VT500C Shadow | 83-86 | Stock | 11-4841 | |
VT500FT Ascot V-Twin 83-84 11-4841 | 87-90 | Stock | 11-4841 | |
CBR600F Hurricane | 87-90 | Stock | 11-4845 | |
CBR600F2 | 91-94 | Stock | 11-4659 | |
CBR600F3 | 95-96 | Stock | 11-4659 | |
CBR600F4 | 99-05 | Stock | 11-4848 | |
CBR600RR | 03-06 | Stock | 11-4851 | |
CBR600SJR | 1996 | Stock | 11-4659 | |
VT600C VLX Shadow | 88-97 | Stock | 11-4694 | |
VT600CD AC | 89-90 | Stock | 11-4694 | |
VT600CD Shadow DLX | 93-00 | Stock | 11-4694 | |
NT650 Hawk GT | 88-91 | Stock | 11-4697 | |
CB750KO | 69-70 | Stock | 005-897 | |
CB750K1-K5 | 71-75 | Stock | 005-898 | |
CB750K | 76 | Stock | 005-898 | |
CB750F Super Sport | 76 | Stock | 005-898 | |
VFR750F Interceptor | 90-93 | Stock | 11-4655 | |
VT750CD Shadow DLX | 98-01 | Stock | 11-4694 | |
VT750CD2 Shadow DLX | 98-01 | Stock | 11-4694 | |
VT750CD Shadow DLX Ace | 02-03 | Stock | 11-4694 | |
VT750DC-DCB Shadow Spirit | 01-07 | Stock | 11-4694 | |
VFR800 | 02-09 | Stock | 11-4692 | |
VFR800A ABS | 02-09 | Stock | 11-4692 | |
VFR800Fi | 98-01 | Stock | 11-4633 | |
CBR1000RR | 04-05 | Stock | 11-4852 | |
CBX 1000 | 79-80 | Stock | 11-7314 | |
CBX 1000 | 81-82 | Stock | 11-7317 | |
GL1000 Goldwing- intake manifold o-ring only | 75-79 and 80-83 | Stock | 18-4610 | |
ST1100/A | 91-02 | Stock | 11-4677 | |
ST1100/P | 03 | Stock | 11-4677 | |
GL1200 Goldwing- intake manifold o-ring only | 84-87 | Stock | 18-4611 | |
ST1300/A | 03-12 | Stock | 11-4855 | |
ST1300P Police | 05-12 | Stock | 11-4855 | |
GL1500 Goldwing O-ring between intake plate and carburetor body |
88-90 | Stock | 18-4640 | |
GL1500A Goldwing O-ring between intake plate and carburetor body |
91-00 | Stock | 18-4640 | |
GL1500I Goldwing O-ring between intake plate and carburetor body |
91-96 | Stock | 18-4640 | |
GL1500C Valkyrie | 97-03 | Stock | 11-4856 | |
GL1800 Goldwing | 01-12 | Stock | 11-4857 | |
KAWASAKI |
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EX250F Ninja 250R | 88-07 | Stock | 11-7460 | |
EX500 Ninja 500R | 87-09 | Stock | 11-7332 | |
ZX600A Ninja 600R | 85-87 | Stock | 11-7333 | |
ZX600C Ninja 600R | 88-96 | Stock | 11-7333 | |
ZX600D Ninja ZX-6 | 90-93 | Stock | 11-7339 | |
ZX600E Ninja ZX-6 | 93-04 | Stock | 11-7340 | |
ZX600F Ninja ZX-6R | 95-97 | Stock | 11-7341 | |
ZX600G Ninja ZX-6R | 99-00 | Stock | 11-7327 | |
ZX600J Ninja ZX-6R | 01-02 | Stock | 11-7327 | |
ZX600J ZZR600 | 05-08 | Stock | 11-7327 | |
KZ900A4/A5 (LH) | 76 | Stock | 11-4165 | 005-865 complete set |
KZ900A4/A5 (RH) | 76 | Stock | 11-4164 | |
KZ900B1 LTD (LH) | 76-77 | Stock | 11-4165 | 005-865 complete set |
KZ900B1 LTD (RH) | 76-77 | Stock | 11-4164 | |
ZX900A GPz900-Ninja | 84-86 | Stock | 11-7334 | |
Z1/Z1A/Z1B 900 | 73-75 | Stock | 11-4165 | 005-865 complete set |
Z1/Z1A/Z1B 900 | 73-75 | Stock | 11-4164 | |
KZ1000A1/A2(LH) | 77-78 | Stock | 11-4165 | 005-865 complete set |
KZ1000A1/A2(RH) | 77-78 | Stock | 11-4164 | |
KZ1000A3/A4 MKII (LH) | 79-80 | Stock | 11-4165 | 005-865 complete set |
KZ1000A3/A4 MKII (RH) | 79-80 | Stock | 11-4164 | |
KZ1000B LTD (LH) | 77-80 | Stock | 11-4165 | 005-865 complete set |
KZ1000B LTD (RH) | 77-80 | Stock | 11-4164 | |
KZ1000C1~C4 Police (LH) | 78-81 | Stock | 11-4165 | 005-865 complete set |
KZ1000C1~C4 Police (RH) | 78-81 | Stock | 11-4164 | |
KZ1000D1 Z1R (LH) | 78 | Stock | 11-4165 | 005-865 complete set |
KZ1000D1 Z1R (RH) | 78 | Stock | 11-4164 | |
KZ1000D3 Z1R (LH) | 80 | Stock | 11-4165 | 005-865 complete set |
KZ1000D3 Z1R (RH) | 80 | Stock | 11-4164 | |
KZ1000E1/E2 Shaft (LH) | 79-80 | Stock | 11-4165 | 005-865 complete set |
KZ1000E1/E2 Shaft (RH) | 79-80 | Stock | 11-4164 | |
KZ1000J1/J2 | 81-82 | Stock | 11-4853 | |
KZ1000J3 | 83 | Stock | 005-867 | |
KZ1000K1/K2 LTD | 81-82 | Stock | 11-4853 | |
KZ1000M1/M2 CSR | 81-82 | Stock | 11-4853 | |
KZ1000P Police | 82-06 | Stock | 11-4853 | |
KZ1000R1 Replica | 82 | Stock | 11-4853 | |
KZ1000R2 Replica | 83 | Stock | 005-867 | |
ZX1000 ZX-10 Ninja | 88-90 | Stock | 11-7335 | |
KZ1100A1/A2 Shaft | 81-82 | Stock | 11-4853 | |
KZ1100A3 Shaft | 83 | Stock | 005-867 | |
KZ1100B2 GPz | 82 | Stock | 11-4853 | |
KZ1100D1 Spectre | 82 | Stock | 11-4853 | |
KZ1100D2 Spectre | 83 | Stock | 005-867 | |
KZ1100L1 LTD | 83 | Stock | 11-4853 | |
ZN1100B1/B2 LTD | 84-85 | Stock | 005-867 | |
ZR1100C ZRX1100 | 99-00 | Stock | 11-7343 | |
ZX1100A1/A2 GPz | 83-84 | Stock | 005-867 | |
ZX1100C ZX-11 Ninja | 90-93 | Stock | 11-7338 | |
ZX1100D ZX-11 Ninja | 93-01 | Stock | 11-7338 | |
ZX1100E GPz1100 | 95-97 | Stock | 11-7343 | |
ZR1200A ZRX1200 | 01-05 | Stock | 11-7343 | |
ZX1200C ZZR1200 | 02-05 | Stock | 11-7338 | |
YAMAHA |
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RD350LC | 81-82 | Stock | 11-4221 | |
RZ350 | 84-85 | Stock | 005-835 or 11-4221 | |
SR500E/F/G/H | 78-81 | Stock | 005-880 | |
TT500C/D/E/F/G/H | 76-81 | Stock | 005-880 | |
XT500C/D/E/F/G/H | 76-81 | Stock | 005-880 | |
FZ600 | 86-88 | Stock | 005-881 or 11-6240 | |
XJ600 Seca II | 92 | Stock | 11-4863 | |
XJ600N/S Seca II | 97-98 | Stock | 11-4863 | |
YX600S/SC~A/AC Radian | 86-90 | Stock | 005-881 or 11-6240 | |
YZF600R | 95-07 | Stock | 11-4860 | |
TX/XS650 Twin | 74-77 | Stock | 11-4210 | |
XS650 Twin | For mounting aftermarket Mikuni VM carburetors to XS650 2-cylinder models from 1970-1979. 70mm bolt hole center |
Aftermarket Mikuni | 005-815 | |
XS650 SE/SF Special | 78-79 | Stock | 11-6239 | |
XS650G/H Special II | 80-81 | Stock | 005-877 or 11-6239 | |
XS650SG/SH Special | 80-81 | Stock | 005-877 or 11-6239 | |
XS650SJ/SK Heritage Special | 82-83 | Stock | 005-877 or 11-6239 | |
XVS650 V-Star | 98-11 | Stock | 11-4864 | |
FZX700 Fazer | 86 | Stock | 11-4866 | |
FZ750 | 85-86 | Stock | 11-4866 | |
FZR750 | 86-87 | Stock | 11-4866 | |
XS750E/SE/F/SF | 78-79 | Stock | ||
XV750H/J/K Virago | 81-83 | Stock | 11-5454 | |
XV750MK Midnight Virago | 83 | Stock | 11-5454 | |
YZF750R | 94-98 | Stock | 11-4869 | |
XS850G/H | 80-81 | Stock | ||
XS850LG/LH Midnight Special | 80-81 | Stock | ||
XV920RH/RJ Euro model | 81-82 | Stock | 11-5454 | |
XV920J/K Virago | 82-83 | Stock | 11-5454 | |
FZR1000 | 89-95 | Stock | 11-4869 | |
FJ1000L/LC/N/NC | 84-85 | Stock | 11-6236 | |
GTS1000 | 93-94 | Stock | 11-4866 | |
YZF1000R | 97 | Stock | 11-4869 | |
YZF1000R | 98 | Stock | 11-4865 | |
YZF-R1 | 99-01 | Stock | 11-4865 | |
XJ1100 J Maxim | 82 | Stock | 11-6113 OR 005-879 | |
XS1100E/F/G/H | 78-81 | Stock | 11-6113 OR 005-879 | |
XS1100LG/LH Midnight Special | 80-81 | Stock | 11-6113 OR 005-879 | |
XS1100SF/SG/SH Special | 79-81 | Stock | 11-6113 OR 005-879 | |
XV1100 Virago | 88-99 | 11-4191 | ||
FJ1200A (ABS) | 92-93 | Stock | 11-6236 | |
FJ1200S/SC/T/TC | 86-87 | Stock | 11-6236 | |
FJ1200U/UC~D/DC | 89-92 | Stock | 11-6236 | |
VMX1200 V-Max (All) | 85-07 | Stock | 11-6076 | |
XVZ12 Venture & Royale | 83-93 | Stock | 11-6234 | |
XVZ13 Venture & Royale | 83-93 | Stock | 11-6234 |
OFFROAD Intake Manifolds |
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Model | Year | Carb application | Order No. |
HONDA |
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CRF250R | 04-05 | Stock | 11-3603 |
CRF250R | 06-09 | Stock | 11-3605 |
CRF250X | 04-12 | Stock | 11-3603 |
YAMAHA |
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YZ85 | 02-12 | Stock | 11-6108 |
WR250F | 07-12 | Stock | 11-6121 |
YZ250F | 07-11 | Stock | 11-6121 |
XT350 dual sport | 85-00 | Stock | 11-4876 |
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Qty | Order No. | |
Hose Clamp | TMX/ 002-32 | each | 007-498 |
FCR AIR CLEANER/AIRBOX ADAPTERS FOR REMOVABLE BELL CARBS


Screws to mount airbox adapters 021-012
FCR28 - FCR33 2-1/4” (57mm) 28mm 021-211
FCR35 - FCR41 2-7/16” (62mm) x 66mm OA 28mm 021-212
FCR35 - FCR41 2-1/4” (57mm) 40mm 021-213
FCR35 - FCR41 2 bolt to Kawasaki Airbox 39mm 021-214
FCR35 - FCR41 2-11/16” (68mm) 28mm 021-215
FCR35 - FCR41 2-3/8” (60.3mm) 26mm 021-216
FCR35 - FCR41 (58.8mm) 26mm 021-216
FCR35 - FCR41 Raptor (O.D. 52mm) 27mm 021-600
FCR35 - FCR41 FCR to H-D® CV 3 bolt 34mm 021-601
FCR35 - FCR41 Big Twin, sportster 883/1200 31.5mm 021-601A
FCR35 - FCR41 TRX450/XR650R 49mm (O.D. 62.4mm) 021-612
FCR35 - FCR41 YFZ450 (O.D. 58.3mm) 23.5mm 021-613
FCR35 - FCR41 FCR-MX OEM (O.D. 56mm) 21.5mm 021-614
Applications below list adapter only and do not include air filters. Some air filters and adapter o-ring listed farther down page
KAWASAKI
ZX750 ZX7R 96-99 39, 41mm 021-214 ram air KA-7598 fits stock airbox
ZX900 ZX-9R 94-99 39, 41mm 021-214 ram air
ZX1000B ZX-10 88-90 37, 39, 41mm 021-212 RU-2952 005-174 dual filter kit
ZX1100C ZX-11 90-93 37, 39, 41mm 021-214 ram air KA-0004 fits stock airbox
ZX1100D ZX-11 93-99 37, 39, 41mm 021-214 ram air KA-0010 fits stock airbox
ZX1100D ZX-11 (race cars only) 37, 39, 41mm 021-212 RU-2952 005-174 dual filter kit
ZRX1100A Zephyr 99-00 39, 41mm 021-216 RU-2922 005-184 dual filter kit
KTM
LC4 400RXC/ 600RXC all 39, 41mm 021-212 use OEM filter
950 Adventurer 03-07 39, 41mm 021-212 dual filter kit
MOTO GUZZI
Sport 1000 (carbureted models) 94-97 021-600 use OEM filter
SUZUKI
DR350S 90-99 35mm 021-216 stock airbox
DRZ400 00-07 39, 41mm 021-216 stock airbox
DRZ400SM 2009 39mm(will fit, but click here as best results require some filing/machining) 021-213
LT-Z400 04-06 39, 41mm 021-216A stock airbox, 021-216A is not avail, next closest size is 021-216
GSX-R600 1993 39, 41mm 021-216 RU-3092 005-340 dual filter kit
SV650 99-02 39, 41mm 021-215 SU-6599 005-639 fits stock airbox
SV650 99-02 39, 41mm 021-216A RU-0800 005-116 individual pods, 021-216A is N/A, next closest size is 021-216
GSX-R750 (air cooled) 86-92 39, 41mm 021-216 RU-2922 005-184 dual filter kit
GSX-R750W (liquid cooled) 93-95 37, 39, 41mm 021-216 RU-3092 005-340 dual filter kit
GSX-R750 96-97 35, 39, 41mm 021-215 ram air SU-7596 005-345 fits stock airbox
GSX-R1100 (air cooled) 86-92 39, 41mm 021-216 RU-2922 005-184 dual filter kit
GSX-R1100 (liquid cooled) 93-97 37, 39, 41mm 021-216 RU-3092 005-340 dual filter kit
GSF1200 97 39, 41mm 021-216 RU-2922 005-184 dual filter kit
TRIUMPH
DOHC Triple 94-96 39mm 021-212 RU-2780 005-188
YAMAHA
FZR400 88-89 32, 33mm 021-211 RC-2890 005-170 individual pods
YZF450 39, 41mm 021-613 fits stock airbox
FZR600 89-96 32, 33mm 021-211 RC-2890 005-170 individual pods
YZF600 95-89 33mm 021-211 RC-2890 005-170 individual pods
YZF-R6 35mm 021-600 RU-0981 005-744 individual pods
YZF750 94-97 39, 41mm 021-216 RU-3092 005-340 dual filter kit
TDM850, TRX850 all 39, 41mm 021-216 YA-7585 fits stock airbox
FZR1000 87-95 37, 39, 41mm 021-216 RU-3092 005-340 dual filter kit
FZR1000 87-88 37, 39, 41mm 021-212 RU-0800 005-116 single filter
YZF1000R 1997 39, 41mm 021-215 fits stock4 YA-1089 005-585 fits stock airbox
YZF-R1 98-99 39, 41mm 021-215 fits stock4 YA-1098 005-637 fits stock airbox
FCR Air Cleaner Adapter O-ring FCR Air Cleaner Adapter O-ring
to be used with FCR35-41mm air filter dapters. **Highly recommended
for Off-Road and RAM Air applications. 021-439

Air Filters