6Boost Exhaust Manifold, for Nissan SR20DE/DET/VE/VET, Low Mount T3/45 'Open Entry' Single 45mm Wastegate Port Add Titanium Stud Kit:No or ECU output

or ECU output

and the other is they are not optimised for throttle response

These are commonly known as Bosch 968's or Bosch 968 injectors

Dashpot functionality to smooth re-entry into idle and prevent undershoot

6Boost Exhaust Manifold, for Nissan SR20DE/DET/VE/VET, Low Mount T3/45 'Open Entry' Single 45mm Wastegate Port Add Titanium Stud Kit:No or ECU output6Boost Exhaust Manifold, for Nissan SR20DE DET VE VET, Low Mount T3 45 'Open Entry' Single 45mm Wastegate Port ' Prepare to unlock the full potential of your turbocharged engine with a 6Boost turbo manifold. All 6Boost manifolds are specifically designed for your application and built around a unique "merge collector" design. This means no pipes cross each other and the merge collector directs all exhaust gases at the turbine entry. Design All 6Boost