PERFORMANCE EXHAUST MANIFOLDS
The classic route to more power, designed with modern know-how
Difficulty:
Time to fit: 2 hours Almost all of the classic Ford engines benefit from a freeflowing exhaust manifold, which can not only increase power over the standard item, but torque as well. For mild states of tune, opt for a GT-spec manifold, but for something wilder go aftermarket As a general rule, 4-2-1 configurations are best for road use.
Turn to page 88 for our dyno test on exhaust manifolds.
How much: £204 (new, 4-2-1 for Mk1 Fiesta XR2, Burton Power)