2.0L GM Ecotec LTG Big Bore High Pressure Fuel Pump Kit

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WHP Potential On Gasoline:
840 WHP
WHP Potential on E85:
640 WHP
Tune Requirement:
Recommended Tuning Suite:
HP Tuners
Flow Rate Increase Over Stock:
Max Operating Pressure:
240 Bar / 24MPa / 3480.9psi
Geometric Displacement (stock camshaft):
1.659 cc/rev

Big Bore pump kits are build to order; usually ships in 2 weeks


What sets the Nostrum LTG Big Bore apart:

  • CFD Optimized damper assembly
  • E-85 Compatible
  • Fully welded stainless steel pump construction
  • 63% flow increase over stock pump
  • 240bar maximum operating pressure (higher than stock)
  • 100% production tested & serialized for traceability

Size matters. Have a big turbo LTG? Nostrum’s Big Bore HPFP is the pump you need. Flowing 63% more fuel and operating at higher pressure than the stock HPFP, our Big Bore pump is the largest one available for this platform.  
The massive amount of fuel that the Big Bore pump can move gives you loads of torque down low, and huge potential horsepower gains, as long as your injectors can keep up. 

Start strong, finish stronger. 

Complete your LTG fuel system by pairing your shiny new Nostrum Big Bore with our Stage 1 injectors. Flowing 20% more than the stock injectors, the Stage 1 LTG injectors are able to take advantage of the Big Bore’s higher max operating pressure of 240 Bar (versus the 180 Bar stock pump,) meaning even more fuel delivered into the cylinder. More fuel, more boost, more power. 

Nostrum backs every part we sell with a limited lifetime warranty. Every HPFP is serialized and 2D coded for traceability through our manufacturing process and is dynamically tested at multiple vehicle relevant rpm-target pressure points on our in-house test assets. These products come complete with everything you need inside the box, including detailed installation instructions. Tuning guides are also available for your dealer or tuner. We have customer service and calibration engineers on staff to provide you with any support that you may need, from installation to tuning. 

What comes in the box: 
  • Nostrum big bore high pressure fuel pump
  • Mounting flange, alignment tool, and electric harness adapter
  • Stainless-steel high-pressure tube with OEM style vacuum brazed spherical fittings
  • All necessary hardware including abrasion protection sleeve for low pressure line
  • Includes AN fitting adapter for low pressure connection to OE Fuel line
  • Detailed Install Guide
  • Tuning Guide (Dealers and Certified Tuners Only)
Vehicle application list: 
  • 2016+ 2.0L Chevy Camaro
  • 2013-2019 2.0L Cadillac ATS
  • 2014-2017 2.0L Buick Regal GS
  • 2014-2020 2.0L Buick Regal
  • 2016+ 2.0L Chevy Malibu
  • 2014-2019 Cadillac CTS

Certified Tuner:

  • Cooper’s Camaro 

Dyno graph sponsorship results: 


Certified tuner: 
  • Cooper's Camaro

Frequently ask question: 

Q: Do I need a LPFP upgrade? 

A: Many people choose to upgrade to a ZL1 in-tank pump to help ensure their HPFP is being fed properly. Consult with your tuner for your build’s requirements.  

Q: Are these parts compatible with FWD models? 

A: We are working on confirming compatibility with FWD LTG models.  

Q:  Is this pump compatible with ZZP camshafts? 

A: We have had customers successfully use our big bore LTG pump with the zzp camshafts. Our engineering team conducted integration confirmation early in the LTG program for the ZZP camshaft, however it has come to our attention recently that there are two different ZZP camshafts with different HPFP lobes. Traceablity and clarification on the two different profiles has not been internally validated and we cannot gaurantee compatibility between aftermarket parts. 

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