I need advice ASAP on this turbo kit!!!

SMSS

Heres eveyrthing the kit comes with. Can i get a few opinions on this kit. Looking to buy it this afternoon but i dont know much about turbos yet

100% BRAND NEW TOP MOUNT 1000HP TURBO KIT IN STOCK FOR ALL
2JZGE "1993-98 MKIV TOYOTA SUPRA NA (NON TURBO APPLICATION CONVERSION)
ALL 2JZGE NA ENGINE OR SWAP
Lexus 1992-97 SC300
Lexus 2001-05 IS300

MANIFOLD:
100% BRAND NEW IN STOCK READY TO SHIP
100% SUS321 HIGH GRADE STAINLESS STELL
DIRECT BOLT-ON FOR ALL T4 TURBO
HOLD UP TO 1200HP
100% TIG WELDED (PERFECTION GUARANTEE)
COMPLETE BOLTS AND GASKET ENCLOSED
RUST PROOF GUARANTEE FOR LIFE
USE EXTERNAL WASTEGATE (HKS / TIAL 40-50MM WASTEGATE)

DOWNPIPE/INTAKE/WASTEGATE TUBE
100% BRAND NEW IN STOCK READY TO SHIP
100% SUS321 HIGH GRADE STAINLESS STELL
DIRECT BOLT-ON FOR 2JZGE OR 2JZGTE ENGINE
HOLD UP TO 1200HP
4" INTAKE TUBE
3" V BAND DOWNPIPE
50MM WASTEGATE TUBE (HKS 50MM WASTEGATE)
O2 SENSER INSERTED
100% TIG WELDED (PERFECTION GUARANTEE)
COMPLETE BOLTS AND GASKET ENCLOSED
RUST PROOF GUARANTEE FOR LIFE
USE 3" V BAND TURBO

GT45 TURBO (Y2K,T88 SERIES)
Dual Journal bearing (base garrett turbo)

Oil cooled bearing system

T4 turbine inlet flange

Ideal for medium displacement engines making up to 1000+ hp

large Compressor Inlet for the max flow

Autual picture presented

All turbo are Banlanced with American HDFMANN balance mechine

Heavey duty K18 alloy turbine wheels

Super Shine Polished Surface for best apperance

4" V Band Turbine inlet

Dual Turbine Entry

Turbocharger Specification
Inlet (Exducer/Hot Side) T-4 Flange 70.1mm x 82.55mm (2.76" x3.25").

A/R 1.05 Exducer

A/R 0.66 Compressor

Cooling/Lubrication Oil

Outlet (exducer/hot side) 4.25" V-Band

Inlet (compressor/cold side) O 109mm (4.25")

Outlet (compressor/cold side) O 86mm (3.38")

Compressor major diameter O 98 mm

Package Includes
GT45/Y2K Turbo x1

6 x Studs

4.25" Clamps x 1

4.25" Flange x 1

Oil Feed/Oil drain Gasket

TYPE SUPER SOUND BOV KIT
100% BRAND NEW IN STOCK READY TO SHIP
1.75 INCH ADAPTER FOR MOST OF TURBO CAR
HEAVEY DUTY HIGH GRADE ALUMINUM
X-LARGE TRUMPET ENCLOSED(FITTED)
DIRECT BOLT-ON FOR ALL TURBO APPLICATION WITH FLANGE UNIVERSAL FITTING KIT
HOLD UP TO 700HP OR 20 PSI OF BOOST PRESSURE
ONE PIECE CONSTRUCTED (PERFECTION GUARANTEE)
COMPLETE BOLTS AND GASKET ENCLOSED
FULLY ADJUSTABLE PRESSURE
SUPER SOUND (VERY LOUD)
100% SATISFICATION GUARANTEE

HKS STY 50MM WASTEGATE
For turbocharger equipped vehicles wastegate sizing is critical. Too small of a wastegate can cause boost creep which can result in engine damage, and too large of a wastegate can cause unstable boost, resulting in inconsitant power output. This wastegate features a large 50mm valve capable of supporting up to 1000hp. The diaphram is made of nomex reinforced high temp silicone for long life. Each unit is unpacked and tested for sufficient valve travel, and tested for leakage.

Features:

50mm Valve
Die Cast Body
Nomex Reinforced High Temp Silicone Diaphram
Billet Steel Valve
Thick Inlet and Outlet Flanges
Package includes Wastegate, Inlet and Outlet Flanges, Inlet and Outlet Gaskets, and mounting hardware