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    The Bulletproof Kit
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Northstar and GM Engine Experts since 2008

We have the best parts in the world for these Northstars. Hands down.

If you want the best, you came to the right place.

Head Stud Kits - Performance Tuning - Upgrades - Repairs

Cadillac DTS - Cadillac Eldorado - Cadillac STS - Bonneville GXP - Oldsmobile Aurora - Buick Lucerne & More

Welcome to Northstar Performance!

     Yes! You found us! We are here to solve the problems you are experiencing with your Northstar engine. Is it loosing coolant? Overheating? Leaking Oil? Well, we have the ONLY proven solution, and it's available at very reasonable prices!

Before you go out and have your car fixed by your mechanic, or do it yourself, PLEASE read our website and go through it. There is a lot of knowledge here that even the most seasoned mechanics can make use of. The repairs on these engines are definitely not as easy as your typical Chevy 350....but with the right knowledge, parts, skills, and a few tips from the pros, the repairs will be successful, EVERY TIME!

The #1 reason that repairs fail on these engines is lack of knowledge or the wrong parts. There are many repair shops that do the job correctly, using our patented head stud kit. This ensures repairs will last. I have written a short article on what to look for and what to watch out for. You can read it by clicking Here

To order our patented SureGrip Head Stud Kit, Click Here

New Products

  • 2000-2003 PCM Tuning
  • E/K Body Engine Mounts
  • 04-05 PCM Tuning
  • Eagle Forged Rods
  • Vinyl Decals
  • Gasket Sets

PCM Tuning - click here!

Engine Mounts - click here!

Stop Patent Infringement - click here!

Vehicles We Specialize In

Buick Lucerne (V8)
Pontiac Bonneville GXP
Oldsmobile Aurora

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Making Northstar Engines Stronger Since 2008!
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