Comp Cams LS1 2.08"/4.900" W/.170" TIP INT VALVES Turbo Boost Controller or do I need both

or do I need both ends

Catback exhausts bolt directly to your existing catalytic converter

FX 1988 - 1991 Toyota Corolla GTS 1985 - 1993 Toyota Corolla LE 1985 - 1986 Toyota Corolla LE Limited 1992 Toyota Corolla LSX 1985 - 1987 Toyota Corolla Sport DLX

(Fit models with OEM wheel lip molding)

82 Turbo Manifold Kit – Ramhorn Design | K20 K24 K Swap (EG/EK Civic Si)

Comp Cams LS1 2.08"/4.900" W/.170" TIP INT VALVES Turbo Boost Controller or do I need bothSportsman Stainless Steel Valves; LS1 Intake 2. 08 x 4. 900 with . 170 Tip COMP Cams Sportsman Stainless Steel Valves are available in a variety of diameters and stem lengths for street competition engines. Made from 21 4N forged high strength steel alloy with 50 HRc minimum hard tips (eliminates the need for a lash cap), these valves are state of the art, delivering tremendous performance and durability. Recommended for all hydraulic, mechanical and