2017-2019 L5P Duramax S400/S400 Compound Turbo Kit

FKF 2017-2019 Dual Non-VGT Compound Turbo Kit

Features-

5" 6061 Aluminum V banded Intake with Correct MAF location (Can be built with 6" intake depending on Turbo Selection)

3.5" 6061 Aluminum Cold Side Crossover (V banded to atmospheric turbo with 3.5" Vanjen to Valley Turbocharger)

3.5" 6061 Aluminum 2 Piece Hot side Pipe ( 3.5" Vanjen Connection & 1/8" NPT Port for Nitrous Injection/Pre intercooled Monitoring)

3.5" 6061 Aluminum Cold Side Pipe

3.5" 6061 Aluminum Y bridge with 3.5" Vanjen Connection to Cold Side (x2 NPT port for 10 Bar MAP sensor)

3.5" 304 Stainless Hot Side Exhaust Crossover (Boasts a 1" Thick T6 Port Matched Flange)

4" 304 Stainless 2 Piece Downpipe 

Billet Steel T4 Valley Pedestal (Wastegate Provision)

Billet Aluminum T6 Atmo Turbo Pedestal (Built in -12 Oil Drain Bung)

Battery relocation kit (relocates to Box)

Fender Mounted Coolant Tank

-12 Drain Lines/Bungs for both turbos + -6 Feed lines and Fittings for both turbos

-Kit will come standard with both T4 and T6 Turbo Blankets

Powder coating Included in kit pricing. Please state in cart notes if you would prefer kit to come in raw finish

This is a performance driven turbo kit with the highest HP L5Ps in the world running a similar style kit

Highly recommend install by a certified FKF Dealer or experienced installer

Can be adapted to 20+ trucks. Please contact for more information

If you would like to choose and source your own turbochargers, they will have to be shipped to us for mockup with the kit e.g. GT55/S400 or Garrett style valley turbo

Turbo Choices offered by us-

TNT- S488 96x88 1.32AR/S467 83x74 1.0AR- 1000HP capable fuel only, keeps spool time very fast. Pair with minimum 100s/12mm

TNT- S492 103/92 1.32AR/S472 87x83 1.0AR- 1300HP capable Fuel only. Pair with 200s/14mm

TNT DBB 5R 94mm 112x102 1.24AR/S476 87x82 1.0AR- The sky's the limit

Hand Built turbo kit, 8-14 Week Build Time

If custom powder coat colour is desired- Select “Custom Colour” and state colour in the cart notes

Color Link- https://www.prismaticpowders.com/

Being Built to Order these kits are final sale

Tags- S4/S4, S400 Compound Turbo, GT55/S400