| Item | Weight Saving | Supplier | Comments | |
| (kg) | ||||
| Remove passenger footrest | 0.55 | |||
| Remove rear mid spoiler+foglight+reversing light+brackets | 5.60 | |||
| Remove resonator valve | 0.70 | |||
| Remove rear windscreen assembly | 0.37 | |||
| Remove fuel charcoal cannister with breather plumbing | 0.70 | |||
| Remove inner air filter and clip | 0.33 | |||
| Remove mid spoiler pedestrian hoops | 0.15 | |||
| Add oil cooler oil cooler +3kg+1.5kg extra oil | -4.50 | Lotus | essential for track use | |
| Add catch tank and breatherhose | -1.30 | Lotus | part of 190 upgrade | |
| Carbon fibre boost tube | 0.50 | Reverie | replaces engine compartment lid | |
| Race battery 2.7 vs 11.35 | 8.65 | Lotus | ||
| Carbon fibre mudguards | 5.00 | Lotus | ||
| Aluminium air box back plate (standard 340r item is steel) | 0.50 | Lotus | ||
| Alloy fuel tank (weight saving of fuel capacity reduced by 2 gallon) | 9.00 | |||
| Alloy Fuel Tank (weight saving of tank itself) | 6.55 | Lotus | ||
| Carbon fibre track seats (2kg vs 8.5 kg) x2 | 13.00 | Lotus | ||
| Carbon fibre steering wheel 1.7kg vs 0.7kg | 1.00 | Reverie | ||
| Custom built lightweight rollover bar (11kg vs 22kg) | 11.00 | Rollcentre | custom built | |
| Miniature Titanium silencer (2.2 vs 16) | 13.80 | Blueflame | custom built | |
| Carbon Fibre Race Airbox | 0.50 | Lotus | ||
| Lightweight alternator (3.35 kg vs 5.9kg) | 2.55 | QED | complete kit inc pulley & belt | |
| Carbon lightweight wing supports (550vs2kg x 2) | 2.90 | Reverie | ||
| Elise tray vs 340r tray 1.65 vs 2.22 | 0.57 | Lotus | ||
| Bells & rotors (4.95 vs 5.5) x 4 | 2.20 | Eliseparts | ||
| Total weight saving | 80.32 | |||