J Wiebe & Associates >> Northstar Performance International   

New Online Store! Click Here

   Main Index    


    SureGrip Stud Kits
    MLS Head Gaskets
    Main Stud Kits
    The Bulletproof Kit
    Engine Mounts
    E/K Body Engine Mounts
    Camshafts (replacement)
    Gaskets & Seals
    PCMs / ECMs / ECUs
    Flywheel Bolts
    Gasket Sets
    Intake Manifolds
    Bearing Kits - Crank & Rod
    New Crate Engines

Custom Tuning for GM Vehicles (including Northstar V8)

Northstar Tuning GM Vehicle Tuning Price List & Vehicle List
Questions &
Testimonials Shipping &
Order Now!
Hot Rods
& Sand Rails

More power -AND- better gas mileage - that's what our tunes deliver! You've probably seen all kinds of gimmicks and gadgets that promise this, but REAL tuning will get you the improvements you're looking for, and you found the right place that does it! How? By changing the way the engine does its job. Did you know that factory production vehicles are often de-tuned and are designed to burn more fuel than necessary? Keep reading to learn more.

There's doing work, and doing work efficiently. An engine is designed to work- to move your vehicle. That's its job. Is it doing it as best as it can? Probably not. We see it all the time how factory calibrations are not optimized for best performance and efficiency. YES - you can have both with a good PCM tune. How? We put our own calibration on your vehicles/ PCM (which stands for powertrain control module). It will change many parameters in your powertrain such as ignition timing, fuel maps, boost pressure (if applicable), shift points, etc. The goal is to give you the very BEST of both worlds. When your throttle position is beyond a certain point (say, 80% to the floor), our tune will give your vehicle more power for quicker acceleration. When you're cruising on the Interstate or idling in traffic, our tunes will allow your engine to do the same work, using less fuel- and that means more money in your pocket.

Installation is EASY! It takes only about 20 minutes to install a performance-tuned PCM in your vehicle and you can do it yourself with basic tools! Look us up on YouTube for installation videos!

AVAILABLE NOW for ALL front wheel drive Northstars!! And most RWD / AWD

Why should you buy a tune?

Well for starters; we remove the speed limiter. Most people would think this is done so that careless people can break the law. On the contrary- I have always personally believed that vehicles should never have a speed limiter in case of emergency. Put it this way: If you or someone else needs medical attention and can't wait for an ambulance; YOUR vehicle may be the only thing saving a life. Do you really want a speed limiter at that point in time?

There's another reason - for safety and driveability- why I personally believe ALL 96-99 Northstars need a custom tune. If there's an ABS or Traction Control fault; which could be as simple as a bad wheel hub sensor; you lose 1st gear. Want proof? Turn your traction control off.....then try to accelerate. You take off in second gear, slowly. For safety; you need acceleration just as much as you need good brakes. These cars are getting older and you don't want to be stuck in that position where you're trying to take off from a standstill in heavy traffic and you can't accelerate properly. Our tuning will fix that and give you FIRST GEAR again at ALL times including when you turn traction control off or if your car develops an ABS/TC fault.

We are the ONLY company that can offer such in-depth tuning for these engines! Other companies out there will sell you chips and aftermarket gadgets that plug in to your OBD-II port. They DON'T WORK!! What we sell, is professional tuning that uses your existing engine controls that just makes it work the way YOU want it to.

So you want more power? No problem. Want to save fuel? We can do that too. Did you install custom camshafts or a supercharger? We can tune it for you.

We can remove torque management, adjust the timing curve, remove VATS, Remove rev limiters, etc...The possibilities are endless.

Return To Stock anytime you need:

Anytime you want to return your car to stock, just swap in the original PCM. It's a simple process and we recommend keeping the original PCM around. Why? PCM failures happen from time to time. No more, or less with a tune. If it's electronic or mechanical, it can fail! If you keep a spare on the shelf that is programmed to your car (the stock one) you always have backup!

Hot Rod & Sand Rail Stand-Alone PCM tuning:

We are able to tune Northstar PCMs to work in hot-rods, sand rails, and other projects. The engine must be a 93-99 or a 2006-2011 for us to do this. There is a $100 additional licensing fee to do this that we forward to the software engineer that made this possible in appreciation for his efforts. $539 is the charge for a stand-alone PCM that will run your Northstar. We can provide the PCM harness pin-outs and make it work with or without the normally installed 4T80-E transmission. It used to be that you'd have to run an aftermarket standalone ECM on these engines......not anymore. the factory EFI system is EVERY BIT as capable (possibly more-so) to run a Northstar in your hot-rod or sand rail.

For a hot-rod build; we highly recommend using a 93-99 block and crank, with 95-99 heads (date is stamped in the heads). You MUST use the intake manifold from a 1996-1999. We can go into more detail for your build.


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

Information Desk

Contact Us
About Us
Our Mission
Privacy Policy


Subscribe To Our Newsletter!
Our newsletter will give you the inside scoop on all our developments and future specials!

Facebook Youtube Twitter Pintrest Google Plus

Making Northstar Engines Stronger Since 2008!
Email: info@northstarperformance.com | We have installers across the USA and Canada

Copyright 2020 Northstar Performance. All Rights Reserved.
Copying of any design, articles, and artwork from www.northstarperformance.com is strictly prohibitied. Permission may be granted- inquire to legal@northstarperformance.com
Questions concerning the security and privacy of this website? Read our Privacy Policy.