Request a catalogue

Available Catalogues

I'm interested in:
  • Motorsport
  • Motorcycle
  • Performance
  • Tools and Workshop
 

Exhaust Manifolds

Showing 24 of 41 items
demontweeks_pipm046
 
 
NZ$659.35INC VATNZ$659.35EX VAT
demontweeks_mtkssxfd014_akn
 
 
NZ$601.24INC VATNZ$601.24EX VAT
demontweeks_scosmnc014
 
 
NZ$682.50INC VATNZ$682.50EX VAT
demontweeks_scosfdm068
 
 
NZ$489.12INC VATNZ$489.12EX VAT
demontweeks_pipm057
 
 
NZ$647.42INC VATNZ$647.42EX VAT
demontweeks_pipm041
 
 
NZ$290.78INC VATNZ$290.78EX VAT
demontweeks_pipm040
 
 
NZ$361.71INC VATNZ$361.71EX VAT
demontweeks_pipm015
 
 
NZ$789.98INC VATNZ$789.98EX VAT
demontweeks_mtkssxvw175_akn
 
 
NZ$1,707.87INC VATNZ$1,707.87EX VAT
demontweeks_mtkssxvw072_akn
 
 
NZ$1,329.26INC VATNZ$1,329.26EX VAT
demontweeks_mtkssxpo026_akn
 
 
NZ$1,483.62INC VATNZ$1,483.62EX VAT
demontweeks_mtkmcxvw201_akn
 
 
NZ$754.01INC VATNZ$754.01EX VAT
demontweeks_lssmt107
 
 
NZ$2,964.00INC VATNZ$2,964.00EX VAT
demontweeks_lssmt011
 
 
NZ$2,964.00INC VATNZ$2,964.00EX VAT
demontweeks_lsslm188
 
 
NZ$5,241.60INC VATNZ$5,241.60EX VAT
demontweeks_lsslm169
 
 
NZ$5,241.60INC VATNZ$5,241.60EX VAT
demontweeks_lsslm129
 
 
NZ$3,783.00INC VATNZ$3,783.00EX VAT
Showing 24 of 41 items

An exhaust manifold is normally the most important part of the exhaust to replace on a normally aspirated engine.

Your exhaust manifold is bolted directly to your engine’s cylinder head and is responsible for the flow of exhaust gases away from the engine through the exhaust system. When seeking to increase power output, fitting an upgraded exhaust manifold should be considered. If you are increasing boost, fuel pressure or any other input to the engine, the output (exhaust fumes) need to be removed as efficiently as possible. A better designed manifold will increase scavenging effect which will, in turn, increase the flowrate of air into the pistons resulting in more power and torque.

On popular cars you may have a choice of manifold - A 4-1 exhaust manifold has the least restrictive design possible, enabling the biggest possible gains at high revs. Perfect for driving flat-out. A 4-2-1 manifold has an intermediate stage which improves low-end torque which can be better on road.
Either on its own or in combination with an exhaust system, a manifold is one of the biggest improvement you can make to the exhaust.