One of the most complete, quality twin piping kits on the market at the best price. Made with quality 409 stainless steel piping, Tig Welded, powdercoating included. (See also our 2/3rds kits, and our Complete Kit which offers both turbos at deep discounts!)

The kit consists of all the options you can choose independently from our site all in one place deeply discounted. This complete kit INCLUDES: Piping Kit and BOTH turbochargers,  powdercoating included.

This is our 2/3 kit for 94-98 Dodge Cummins diesels. It makes buying compound (twin) turbos easy. Use your stock turbo, and we supply the piping kit and the S400. These kits take the guess work out of selecting the right combo and perform amazing.

This is our 2/3 S300/S400 kit for 94-98 12V Dodge Cummins diesels. It makes adding a second turbo easy. Use your S300 2nd Gen T3 gated turbo and an aftermarket 12V manifold, and we supply the piping kit and the S400 turbo. These kits take the guess work out of selecting the right combo. This kit comes with a new 475 96/1.32 T6 turbo with upgraded internals by Forced Inductions, with a 6-month warranty.

This is our 2/3 S300/S400 kit for 98.5-02 12V Dodge Cummins diesels. It makes adding a second turbo easy. Use your S300 2nd Gen T3 gated turbo and 24V T3 manifold, and we supply the piping kit and the S400 turbo. These kits take the guess work out of selecting the right combo. This kit comes with a new 475 96/1.32 T6 turbo with upgraded internals by Forced Inductions, with a 6-month warranty.

This is our 2/3 kit for 99-02 Dodge Cummins diesels. It makes adding a second compound (twin) turbo easy. Use your stock turbo, and we supply the rest. These kits take the guess work out of selecting the right combo and perform amazing.

This is our 2/3 K27/S472 83/1.10 kit for 94-02 Dodge Cummins diesels. It makes adding a second turbo easy. Use your Borg Warner K27 turbo and we supply the piping kit and a new S472 83/1.10. These kits take the guess work out of selecting the right combo.

Crazy Carl's S400/S400 COMPLETE Racing Twin Kit! Polished Stainless Piping, Steed Manifold, brand name Racing Turbos. This kit provides sufficient airflow to reach 1200 to 1500 horsepower. Designed the Crazy Carl's way: Exceeding your expectations with better quality material, superior design, and the most competitive pricing for the money.

Crazy Carl's S400/S400 Racing Twin Kit Piping, with Polished Stainless Piping, designed to work with T4 stock angle Steed Manifold and S400 T4/S400 T6 turbo config. This kit provides sufficient airflow to reach 1200 to 1500 horsepower. Designed the Crazy Carl's way: Exceeding your expectations with better quality material, superior design, and the most competitive pricing for the money.

This is our 2/3 kit for 03-07 5.9 Dodge Cummins diesels using the stock HE351 turbo. It makes the transition to compound (twin) turbos easy. Use your stock turbo, and we supply the piping kit and the S472. These kits take the guess work out of selecting the right combo and perform amazing.

This is our 2/3 S300/S400 kit for 03-07 5.9 Dodge Cummins diesels. It
makes adding a second turbo easy. Use your S300 3rd Gen T3 gated turbo
and a 2nd gen manifold, and we supply the piping kit and the 475 turbo.
These kits take the guess work out of selecting the right combo.

This is our triple turbo kit. It is completely custom, made-to-order only. Please email us with any serious inquires. It does NOT include the turbos. We can supply near any turbo(s) or you source them yourself. The exhaust manifold, piping ,...

A side x side turbo set up for 94-02 Cummins trucks, this is a perfect kit for someone who tows heavy loads or wants a fun daily driver or weekend warrior. This kit comes with two turbos and the twin piping kit and parts.

Stainless Diesel's Knuckle Sandwich 400/400 - race ready twin'sThis setup packs a serious punch, with enough air to support 1450+hp!.

This Compound kit is built for  Dodge kits CR Cummins 5.9 '03-'07 for use with an S400 T4 turbo on the manifold with a 5" inlet and a T6 s400 atmospheric 5" or 5.5" inlet Turbo. Just add Turbos and Go with this setup!

06-07 FMW 467.7 5.9L Single Swap Turbo & Piping Kit

The sole job of the spring wastegate actuator, is to act as a pressure relief valve that controls the turbocharger boost output.

Replacement spring for SD S300 billet spring wastegate actuator.

Race proven design combines with heat and oil resistant high temp silicone, designed to withstand over 100 PSI of boost and ensure the long lasting quality.

BLACK OUT OF STOCK TIL SEPT /ONE ORANGE SET IN STOCK Race proven design combines with heat and oil resistant high temp silicone, designed to withstand over 100 PSI of boost and ensure the long lasting quality.

Want faster spool for your compound turbo kit?  This 472 83/1.10 T6 turbo will supply enough air
for 550HP and will work better with an HX35 or smaller S300 and spool much quicker than
475/96/1.32. Now with billet wheel.

This is our new t-shirt.  Images printed on front and back. Show off and be seen! Let folks know you're a Cummins owner who loves their truck!!

The Industrial Injection 2nd Gen 5.9L Cummins Compound Phatshaft Add-A-Turbo Kit is designed to be used on a 12V or 24V Cummins that is already running an Industrial Injection Phatshaft or similar turbos and is then compounded with a BorgWarner S475 turbo to maximize the engines efficiency when larger injectors are added.

Billet boost-leak tester for a 4-inch-inlet turbo. For use with regulated shop air and soapy water for boost leak tests.