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Frontline Developments Products
Moss Europe has been appointed the official distributor for Frontline Costello’s range of performance products.

Frontline Costello has developed a proven range of products for the MGB, Sprite & Midget of sportscars that improve the car’s ride & handling without detracting from the cars character.

They also produce a range of high quality 5 speed gearbox conversions for Sprite & Midget and Spitfire & GT6.

MGB Products

Telescopic Damper Conversion
This complete bolt-on kit has been developed to increase the efficiency, grip and feel whilst maintaining good levels of ride comfort. The kit is suitable for use with standard, lowered or uprated springs & anti-roll bars. More Info.

Castor Correction Kit
A simple way to enhance your MGB’s steering feel and response. This kit gives lighter steering without the ‘weighting’ often experienced during cornering, particularly when wide wheels with modern ‘grippy’ tyres are fitted. More Info.

Five Link Rear Suspension Kit
The ultimate rear suspension set up for an MGB. This computer designed system replaces the standard leaf spring and lever arm damper set-up with a four link system using ‘coil-over’ springs & dampers. More Info.

Panhard Rod Kit
This panhard rod transforms the back end of the MGB, removing lateral movement of the axle keeping it located in the centre of the car. More Info.

Spridget Products

Front Telescopic Damper Kit
This renowned kit transforms the ride and handling of the Spridget. Giving a steadier ride, more effective damping and increased negative camber. More Info.

Anti-Tramp Bar Kit
Prevents the axle from moving and twisting the leaf springs which causes ‘tramping’ as drive is taken up. More Info.

RTL – Rear Traction Link
This innovative development improves traction, controls the axle’s lateral movement and lowers the roll centre to improve the driving experience. More Info.

Panhard Rod Kit
This panhard rod transforms the back end of the Spridget, removing lateral movement of the axle keeping it located in the centre of the car. More Info.

Uprated Brake Kits
Choose either the ultimate 10” vented brake disc kit or the 9” solid disc kit, to improve your car’s braking. More Info.

Rear Disc Brake Kit
A bespoke kit to transform you Spridget to run rear disc brakes for improved braking balance and performance. More Info.

Limited Slip Differential & Uprated Half Shafts
These drive shafts and the LSD are designed to harness the power of uprated engines and deliver it to the wheels to give maximum traction. More Info.


Five Speed Gearbox Conversions

Give your car all the benefits of a 5 speed gearbox with these high quality well engineered kits.

More Info. for Sprite & Midgets

More Info. for Spitfire & GT6

Part #DescriptionApplicationPriceQty
Rqd		Qty 
FLD30701
Frontline Telescopic Damper Kit, Front
Note:
MGB £810.95
€965.03 		1
FLD30722
Frontline Castor Correction Kit
Note:
MGB £88.95
€105.85 		1
FLD30720
Frontline Five Link Rear Suspension Kit
Note:
MGB Roadster £1,521.95
€1,811.13 		1
FLD307201
Frontline Five Link Rear Suspension Kit
MGB GT £1,521.95
€1,811.13 		1
FLD30721
Frontline Panhard Rod
Note:
MGB £346.95
€412.88 		1
FLD30752
Frontline 4 Pot Vented Brake Kit
MGB £699.95
€832.94 		1
TMK30908
Frontline Front Telescopic Damper Kit
Note:
Sprite/Midget £479.95
€571.14 		1
FLD30930
Frontline Anti-Tramp Bar Kit
Note:
Sprite/Midget £173.95
€207.00 		1
FLD30931
Frontline 'RTL' Rear Traction Link Kit
Note: Semi-Elliptic
or
Quarter-Elliptic
Sprite/Midget £516.95
€615.17 		1
FLD30934
Frontline Panhard Rod Kit
Note:
Sprite/Midget
Quarter Eliptic Springs 		£184.95
€220.08 		1
FLD30933
Frontline Panhard Rod Kit
Note:
Sprite/Midget
Semi Eliptic Springs 		£184.95
€220.08 		1
FLD30949
Frontline Rear Disc Brake Kit
Note: Semi-Eliptic, 14" Wheels Only
Sprite/Midget £648.95
€772.25 		1
FLD309492
Frontline Rear Disc Brake Kit
Note: 1/4 Eliptic, 14" Wheels Only
Sprite/Midget £678.29
€807.17 		1
FLD309493
Frontline Rear Disc Brake Kit
Note: 1/4 Eliptic, 13" Wheels Only
Sprite/Midget £819.29
€974.96 		1
FLD30948
Frontline 9" Solid Disc Brake Kit
Cast Iron Calipers
Sprite/Midget £445.95
€530.68 		1
FLD30948X
Frontline 9" Solid Cross-Drilled Disc Brake Kit
Cast Iron Calipers
Sprite/Midget £503.95
€599.70 		1
FLD30935
Frontline LSD, fine spline
Note: Use with FLD30936 only.
Not compatible with standard spline drive shafts.
Sprite/Midget £710.95
€846.03 		1
FLD30936
Frontline Half Shafts, Uprated, Fine Spline
Note: Uprated EN40 grade steel.
Use with FLD30935 only.
Not compatible with standard differentials, or Quaife LSDs.
Sprite/Midget £280.95
€334.34 		1
TMK30919
Frontline 5 Speed Conversion Kit
Sprite/Midget 948 £1,729.00
€2,057.51 		1
TMK30920
Frontline 5 Speed Conversion Kit
Sprite/Midget 1098 £1,799.00
€2,140.80 		1
TMK30921
Frontline 5 Speed Conversion Kit
Sprite/Midget 1275 £1,718.95
€2,045.56 		1
TMK30922
Frontline 5 Speed Conversion Kit
Note: For models with screw on speedo cable to speedometer.
Midget 1500
Upto Aug 77
G-AN6-200000 		£1,643.95
€1,956.31 		1
TMK30923
Frontline 5 Speed Conversion Kit
Note: For models with clip on speedo cable to speedometer.
Midget 1500
From Aug 77
G-AN6-200001 on 		£1,643.95
€1,956.31 		1
TT30430
Frontline 5 Speed Conversion Kit
Spitfire 1300 £1,599.00
€1,902.81 		1
TT30431
Frontline 5 Speec Conversion Kit
Spitfire 1500 £1,599.00
€1,902.81 		1
TT30730
Frontline 5 Speed Conversion Kit
GT6 £1,799.00
€2,140.80 		1