3.5 Litre - (1) - RA1014

Not suitable for 3.5 litre manual with optional oil cooler.

3.9 litre -

Manual - (1) - RA1028

Automatic - (1) - RA1069

4.2 litre (LSE) - (1) - RA1080

Used to replace original bolts to enable easier installation of manifolds. Includes 16 studs, nuts & washers.

Sports Exhaust Available for all Classic V8 models, our stainless steel Sports Exhausts comprise tubular manifolds and large bore, single pipe systems with sport silencers. Designed to increase power and torque, Sports Systems improve the look of your Range Rover as well. The sound is pure V8 but comfortably refined inside the car at cruising speeds. Each system includes fitting instructions, gaskets special mountings and fittings to assemble system utilising existing mountings where applicable.

Enhancements for Sports Exhaust Our Sports Exhaust Systems are designed to give an increase in power & torque on an otherwise unmodified vehicle. The way they achieve this is by helping the engine to 'breathe out' more efficiently. Naturally, they work just as well (or even better) on modified engines, since most modifications are designed to make the engine breathe more efficiently. Fitting K & N air filters at the same time as our Sports System will help the engine to 'breathe in' more efficiently - by removing the restrictive standard air filter - yielding even better results. (For K & N filters, see our Fuel Section). To gain maximum benefit from our Sports System, particularly in large capacity V8s (3.9, 4.2 or even 4.6 litre versions), fit our Big Valve Performance cylinder heads. These heads are ported and gas-flowed to help the engine achieve optimum efficiency. (For Performance cylinder heads, refer to our V8 Engine Section). Finally, don't forget your fuel system: all this extra efficiency will be lost if your carbs are worn out or your injection system is not up to scratch! The original carbs should be adequate for an otherwise unmodified 3.5 engine fitted with a Sports System and K & N filters (provided they are correctly set up). For the same vehicle fitted with modified cylinder heads or a bigger engine, however, we would recommend fitting either a Holley or Weber 4 barrel carb (see our Fuel Section). Similarly, standard efi vehicles will need no modifications to the injection system when fitting a Sports System and K & N. If further modifications are being considered, such as a change of camshaft, Performance cylinder heads or a bigger engine, we strongly recommend a remapped ecu to provide the correct fuelling. We can remap your existing ecu to suit your engine's requirements exactly, giving crisper throttle response, more power and torque and better fuel efficiency. (see our Fuel Section).

Manifold Insulation Wrap Tubular manifolds by design produce a vast of amount of heat in the engine compartment. This increases the possibility of electrical/ignition components not working effectively and promotes a higher risk of fire (if any combustible material comes in to contact with the manifold), not to mention the likelihood of severe burns when working on the engine! By wrapping your tubular manifold with Thermo-Tec insulating wrap you can overcome all these risk factors. Thermo-Tec keeps the heat within the exhaust manifold so the exhaust gases have a much higher velocity, this induces negative pressure (scavenging) which increases air intake flow, resulting in better performance & economy. Technical Notes: Thermo-Tec heat wrap - which is race & rally proven - comes in rolls 2" wide x 50ft long and moulds to the contours of the manifold. Being a Silica based fabric (it does not contain asbestos or carcinogens) it is unaffected by oil or water, withstands temperatures up to 1000 degrees Celsius and reduces under bonnet temperatures by up to 70%. Snap-Strap Retaining Kit. We strongly recommend that you use Snap-Straps to retain the insulation wrap. These are Stainless Steel straps with a narrow profile (for tight spots) that you cut to length and fasten with 'snap' type heads.

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