CX Twin Turbo Header Manifold Downpipe Kit For G-Body LS1 LS Motor Monte Carlo for Sale

Price: $1,190

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CXRacing Twin Turbo Header Kit ForGM G-Body Cars with LSx Motor Swap.

Supports Dual T4 Turbo, Dual 46mm Wastegate. Fits T4 Turbo with 3" Vband Exhaust Housing. 3" Downpipe

Fits 1980s GM G-Body RWD Cars, Such As Grand National, Cutlass, Monte Carlo, El Camino, Malibu, Bonneville, Grand Prix.

Includes Turbo Headers, Downpipes, WG Dumptube.

1. Turbo, Wastegate, Intercooler, Piping Kit, BOV Are NOT Included, We Offer Them With Different Kits, Check Our Other Listings.

2. This Kit Is Developed Based On A 1981 Oldsmobile Cutlass Supreme, for Other G-Body Chassis, Fitment Might Be Slightly Off and Some Modifications Are Needed.

3. No Installation Instruction Is Provided, However, We Show Many Installed Pictures and Video. It Is For Advanced User Knows How To Install A Turbo Kit.

4. This Is A Proprietary Design By CXRacing, If Your Engine Sits Too Low, Downpipe Might Hit.


Chassis: GM G-Body RWD In The 1980s

Motor: LS1/ LSx


1. This Kit is for Turbo Header Kit Hardware Only, Supports 900-1000 WHP. However, You Must Have a Built Motor, Upgraded Fuel System, Tune the System, and Stronger Transmission and Rear End to Support Bigger Power.

2. Need to Drill Two Oil Return Ports on the Oil Pan for Turbo Oil Return, and Weld Two AN10 Fitting (Make Sure to Clear Crank Clearance Inside the Oil Pan When Welding the Fitting). Turbo Oil Feeds Run From Oil Filter Sandwich.

Product Being Sold:

Manifold/Header Kit with Dumptube and Downpipe
Note: Turbo, Wastegate, Intercooler, Piping Kit, BOV Are NOT Included

This is CXRacing's Newest Products for the Application Stated Above. All Parts Are Developed from Ground Up in Our R&D Center in USA, Designed and Built for Improved Performance Gains, with Excellent Fitment and Easy Installation. Product Info and Spec: Manifold/Header/Downpipe Kit:
T4 Turbo Flange, 46mm Vband WG Flange
Stainless Cast Turbo Elbow Adapter, Easy Installation
3" Downpipe
1.5" WG Dump Tube
Note: Downpipes End at the Transmission Shaft Area, You Will Need to Build the Rest Of the Exhaust System (Not Inlcuded)


  • Off Road or Track Use ONLY, NOT for Street Use.

  • Due to The Complexity of Swapping a Motor to Different Chassis, Please Make Sure that You Understand the Application Stated Here are the Right Parts for Your Project.

  • Parts Being Sold are The Kit Being Advertised ONLY. Other Parts Shown On Pictures are For Demo Only (of Our Complete Swap Kit). Check Our Other items.


Our New Products are developed in the US on our own race cars, fully Tested with fitment and Performance.
Dyno and Track Proven. All Race Cars Below Use CXRACING Products.

Click Below Picture to Watch Installed and Running Video:


Note: Below Pictured Turbo, Wastegate, Intercooler, Piping Kit, BOV Are NOT Included



Below Are Our Policy and Product Warning/Disclaimer, Please Read Before Buying:

  • All CXRACING products and products listed in this store are for Off Road Racing or Track Racing Use Only, NOT for Street use.
  • CXRacing does NOT recommend or support any Road/Street Usage of these products, nor liable for any issues might result from such usage of these products on Road/Street condition
  • Any Modifications to your vehicle Are AT YOUR OWN RISK.
  • You Should Also Contact Your Car’s Manufacturer to Determine What Effects Modifications May Have on Your Safety, and Vehicle Warranty for installing these aftermarket products.
  • In all circumstances, CXRacing's maximum liability is limited to the purchase price of the products sold. CXRacing shall NOT, UNDER ANY CIRCUMSTANCES, be liable upon a claim or action in contract, tort, indemnity or contribution, or other claims relating to the products it sells which exceeds this liability limit. CXRacing shall NOT be liable for third party claims for damages against the customer, or for malfunction, delays, interruption of services, loss of business, loss or damage to exemplary damages, whether or not CXRacing is apprised of the possibility of such claims of damage.
  • No warranty is expressed for all Products.
  • You agree to the policy and terms stated on this listing by buying or offerding on this item. Please Do NOT buy or offer if you disagree with our policy and terms.



  • All shipping and handling fees are non-refundable in any circumstances. For Return item, if it is free shipping, 20% re-stocking fee will be applied.
  • Shipping cost included on listing is for US Continental 48 States only.
  • PO box, APO, FPO, HI, AK, PR, GU, VI and other countries, shipping and handling fees cost more.
  • For shipments to California addresses, we are required to collect the most current tax rate.
  • Buyer pays shipping for return item regardless the reasons.

We sell most of our products internationally.

Shipping cost outside US continental States is Higher, Please Refer to the following Table for Extra Costs.

Destination Shipping Method ETA Cost PR, Guam, VI ,AK, APO , HI USPS $137 Canada USPS or Fedex $210 Other Countries USPS or Fedex $305


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