6Boost Exhaust Manifold, for Nissan RB20/25DET, T4/2x40 'Divided Entry' Twin 40mm Wastegate Ports "Non Sportsman Mid Frame ie PT6766-7675" Add a titanium stud kit:Yes Additional springs are also available

Additional springs are also available – by using various combinations of 5psi

Compressed Thickness:

90° swivel fittings and tube

Compatible with most aftermarket ECU's

Complies with SFI spec 18

6Boost Exhaust Manifold, for Nissan RB20/25DET, T4/2x40 'Divided Entry' Twin 40mm Wastegate Ports "Non Sportsman Mid Frame ie PT6766-7675" Add a titanium stud kit:Yes Additional springs are also available6Boost Exhaust Manifold, for Nissan RB20 25DET, T4 2x40 'Divided Entry' Twin 40mm Wastegate Ports "Non Sportsman Mid Frame ie PT6766 7675" 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