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ITG Megaflow Air Filters

Handmade in Britain and race-proven, the ITG Megaflow range delivers maximum airflow and filtration for classic and performance carburettors. Choose your frame style below, then find the internal height to suit your engine bay.

Sausage / Domed
Standard / Straight-Sided
Sausage / Domed Megaflow Filters
Available in two frame colours at the same price — Red Frame (standard part number) or Black Frame (B suffix). Click any part number to view the product.
JC20

JC20 Sausage Megaflow Filter

Single Carburettor
Red FrameBlack FrameDescriptionRRP
JC20/S/25JC20/S/25B25mm Internal Height£150.00
JC20/S/40JC20/S/40B40mm Internal Height£109.20
JC20/S/65JC20/S/65B65mm Internal Height£113.40
JC20/S/100JC20/S/100B100mm Internal Height£120.00
JC20/S/125JC20/S/125B125mm Internal Height£163.80
JC30

JC30 Sausage Megaflow Filter

Single Carburettor
Red FrameBlack FrameDescriptionRRP
JC30/S/25JC30/S/25B25mm Internal Height£163.80
JC30/S/40JC30/S/40B40mm Internal Height£122.40
JC30/S/65JC30/S/65B65mm Internal Height£130.80
JC30/S/100JC30/S/100B100mm Internal Height£138.60
JC30/S/125JC30/S/125B125mm Internal Height£147.60
JC40

JC40 Sausage Megaflow Filter

Small Twin Carburettors
Red FrameBlack FrameDescriptionRRP
JC40/S/25JC40/S/25B25mm Internal Height£204.00
JC40/S/40JC40/S/40B40mm Internal Height£145.20
JC40/S/65JC40/S/65B65mm Internal Height£152.40
JC40/S/100JC40/S/100B100mm Internal Height£161.40
JC40/S/125JC40/S/125B125mm Internal Height£169.20
JC50

JC50 Sausage Megaflow Filter

Large Twin Carburettors
Red FrameBlack FrameDescriptionRRP
JC50/S/25JC50/S/25B25mm Internal Height£213.00
JC50/S/40JC50/S/40B40mm Internal Height£163.80
JC50/S/65JC50/S/65B65mm Internal Height£169.20
JC50/S/100JC50/S/100B100mm Internal Height£175.20
JC50/S/125JC50/S/125B125mm Internal Height£180.00
JC55

JC55 Sausage Megaflow Filter

Large Twin Carburettors
Red FrameBlack FrameDescriptionRRP
JC55/S/25JC55/S/25B25mm Internal Height£327.60
JC55/S/40JC55/S/40B40mm Internal Height£238.20
JC55/S/65JC55/S/65B65mm Internal Height£246.00
JC55/S/100JC55/S/100B100mm Internal Height£252.00
JC55/S/125JC55/S/125B125mm Internal Height£258.60
JC90S

JC90S Sausage Megaflow Filter

Filter Pair for Porsche 911 with Weber IDA3C
Part No.DescriptionRRP
JC90SBSausage Filter & Baseplate for Weber IDA3C (Pair)£410.40
JC90SBFSausage Filter Only – please specify side for logo orientation (e.g. Nearside Filter)£161.40
JC100

JC100 Sausage Megaflow Filter

Large Twin Carburettors
Red FrameBlack FrameDescriptionRRP
JC100/S/40JC100/S/40B40mm Internal Height£258.60
JC100/S/65JC100/S/65B65mm Internal Height£264.60
JC100/S/100JC100/S/100B100mm Internal Height£272.40
JC100/S/125JC100/S/125B125mm Internal Height£279.60
Domed Racing Filter Assemblies
JC70

JC70 Megaflow Filter

Domed Racing Filter Assembly (503×135 – 75mm Int. Height)
Part No.DescriptionRRP
JC70Racing Filter complete with Aluminium Baseplate£286.20
JC70FJC70 Racing Filter Only£255.60
JC70BPBlank Baseplate for JC70 Racing Filter£34.20
JC71

JC71 Megaflow Filter

Domed Frame Racing Filter Assembly (451×135 – 75mm Int. Height)
Part No.DescriptionRRP
JC71Racing Filter complete with Aluminium Baseplate£286.20
JC71FJC71 Racing Filter Only£255.60
JC71BPBlank Baseplate for JC71 Racing Filter£34.20

Complete your setup — add the matching baseplate

Every Megaflow carburettor filter mounts to a baseplate matched to your carburettor. Choose your filter above, then add the correct baseplate from the same JC series (a JC50 filter takes a JC50 baseplate, and so on).

Browse Baseplates
Standard / Straight-Sided Megaflow Filters
Available in two frame colours at the same price — Red Frame (standard part number) or Black Frame (B suffix). Click any part number to view the product.
JC10

JC10 Megaflow Filter

Formula Ford / F2 Stock Cars
Part No.DescriptionRRP
JC10Formula Ford Megaflow Air Filter complete with fitting kit£115.80
JC10RFormula Ford Megaflow Air Filter complete with fitting kit (+50mm height)£122.40
JC10FJC10 Air Filter Only (No Fitting Kit)£96.00
JC10RFJC10R Air Filter Only (No Fitting Kit)£102.00
JC10KITSBFitting Kit for JC10 & JC10R Air Filter£44.40
JC20

JC20 Megaflow Filter

Single Small Carburettor (Straight Sided)
Red FrameBlack FrameDescriptionRRP
JC20/25JC20/25B25mm Internal Height£76.80
JC20/40JC20/40B40mm Internal Height£76.20
JC20/65JC20/65B65mm Internal Height£87.00
JC20/100JC20/100B100mm Internal Height£93.60
JC20/125JC20/125B125mm Internal Height£98.40
JC30

JC30 Megaflow Filter

Single Carburettor (Straight Sided)
Red FrameBlack FrameDescriptionRRP
JC30/25JC30/25B25mm Internal Height£114.60
JC30/40JC30/40B40mm Internal Height£122.40
JC30/65JC30/65B65mm Internal Height£130.80
JC30/100JC30/100B100mm Internal Height£138.60
JC30/125JC30/125B125mm Internal Height£147.60
JC40

JC40 Megaflow Filter

Small Twin Carburettors (Straight Sided)
Red FrameBlack FrameDescriptionRRP
JC40/25JC40/25B25mm Internal Height£136.20
JC40/40JC40/40B40mm Internal Height£145.20
JC40/65JC40/65B65mm Internal Height£152.40
JC40/100JC40/100B100mm Internal Height£161.40
JC40/125JC40/125B125mm Internal Height£169.20
JC50

JC50 Megaflow Filter

Large Twin Carburettors (Straight Sided)
Red FrameBlack FrameDescriptionRRP
JC50/25JC50/25B25mm Internal Height£152.40
JC50/40JC50/40B40mm Internal Height£163.80
JC50/65JC50/65B65mm Internal Height£169.20
JC50/100JC50/100B100mm Internal Height£175.20
JC50/125JC50/125B125mm Internal Height£180.00
JC55

JC55 Megaflow Filter

Large Twin Carburettors (Straight Sided)
Red FrameBlack FrameDescriptionRRP
JC55/25JC55/25B25mm Internal Height£279.60
JC55/40JC55/40B40mm Internal Height£282.60
JC55/65JC55/65B65mm Internal Height£291.00
JC55/100JC55/100B100mm Internal Height£300.00
JC55/125JC55/125B125mm Internal Height£306.00
JC90

JC90 Megaflow Filter

Filter Pair for Porsche 911 with Weber IDA3C (Straight Sided)
Part No.DescriptionRRP
JC90Filter & Baseplate for Weber IDA3C (Pair)£408.00
JC90FFilter Only – please specify side for logo orientation (e.g. Nearside Filter)£161.40
JC100

JC100 Megaflow Filter

Multi Carburettor Setups (Straight Sided)
Red FrameBlack FrameDescriptionRRP
JC100/25JC100/25B25mm Internal Height£292.20
JC100/40JC100/40B40mm Internal Height£300.00
JC100/65JC100/65B65mm Internal Height£306.00
JC100/100JC100/100B100mm Internal Height£313.80
JC100/125JC100/125B125mm Internal Height£320.40
Accessories
JCO

Megaflow Oversocks

For use in dusty conditions (for Straight Sided filters)
Part No.DescriptionRRP
JCO-10Oversock for JC10 Megaflow Filter£44.40
JCO-10ROversock for JC10R Megaflow Filter£46.80
JCO-20Oversock for JC20 Megaflow Filter£46.80
JCO-30Oversock for JC30 Megaflow Filter£55.20
JCO-40Oversock for JC40 Megaflow Filter£65.40
JCO-50Oversock for JC50 Megaflow Filter£67.80
JCO-55Oversock for JC55 Megaflow Filter£96.00
JCO-100Oversock for JC100 Megaflow Filter£102.00

Complete your setup — add the matching baseplate

Every Megaflow carburettor filter mounts to a baseplate matched to your carburettor. Choose your filter above, then add the correct baseplate from the same JC series (a JC50 filter takes a JC50 baseplate, and so on).

Browse Baseplates
For any filter height between the intervals stated, or for custom applications, please contact technical@itgairfilters.com