Northern Performance

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Northern Performance LS/LT EFI Dyno + drivability tuning. Aftermarket Parts sales + sourcing. Mild to Wild Street cars. Specializing in LSX performance. Efi Tuning. Performance Parts.

-Clean title,title in hand 1999 Pontiac WS6 turbo charged Trans Am. $29,500 obo -80k mile car. Black leather. T tops. Fi...
10/20/2026

-Clean title,title in hand 1999 Pontiac WS6 turbo charged Trans Am. $29,500 obo

-80k mile car. Black leather. T tops. Fikse FM5 18x10 and 18x9. Great tires.
-5.3 aluminum block, 243 heads, head studs, rod bolts, btr turbo cam, springs/trunnions etc. ati balancer. Ls1 intake manifold and oe throttle.
-Twin 450’s in tank. 8an fuel lines. Regulator. 80lb deka injectors, Huron speed rails.
-Fresh 4l80e buddy built for 900hp. FTI 3,800 stall converter, winters shifter, b&m flex plate, tru cool 40k cooler, lokar dipstick.
PST 3.5” aluminum driveshaft 1350’s both sides.
-moser 9” axle with 31 spline axles, 3.59 gear, and torsional differential.
Umi torque arm kit and lower control arms. Eibach rear lowering springs. Sway bar.
-Huron speed t4 kit with Huron speed t4 turbo. Front mount intercooler etc. this is an ac kit. Ac was not available to put back on the car but can be added.
-complete Midwest chassis stage 5 front tubular suspension with Viking coilovers.
-strange brakes all around. W/proportioning valve etc.
-engine management is a Holley terminator x max with trans control. 7” Holley screen/dash with a carbon perfect fit overlay in the cluster.
-fresh 4 step paint correction and 5 year ceramic coating. Paint looks awesome! It comes with its small flaws if 27 years and 80l miles but it is a looker 😍
Dyno tuned on 9/10 psi at 510/530 in 3rd gear unlocked on the Dyno.

All fresh fluids front to back. Zero miles on the build other than Dyno time.
I purchased this from a friend that gave up on it. To take it on. Help him out. And make sure it gets finished and goes to a good home.

Thanks for reading. Let’s seal a deal and get it gone!

10/19/2026

Merica baby. Enjoy Fred!

The Porsche exhaust is a wrap. Onto the Dyno today! I will be in the office on the phone tomorrow! Sorry for the delay. ...
10/19/2026

The Porsche exhaust is a wrap. Onto the Dyno today!
I will be in the office on the phone tomorrow! Sorry for the delay. It’s been a steady rush to get these projects that have been sitting here out the door before we add more!
Thanks for understanding.

10/17/2026

Just a few minute chat face to phone to keep everyone updated 🤣

Honestly though. It’s always a lot, but I wouldn’t trade it for the world.

As of this week we have topped our new high score of jobs/hours billed and income.
With no end in sight. We have more work than we ever have. Blessed to have built this thing from nothing off from a dream here in small town America.

Thank you everyone for the continued support! Everyone here and our families appreciate you!

Sweet ass WS6 in blue with Fikse wheels is peak 2000’s!!!!!Onto the Dyno session!
10/17/2026

Sweet ass WS6 in blue with Fikse wheels is peak 2000’s!!!!!

Onto the Dyno session!

PSA to anyone installing a rear main seal. (Mostly to the guy that installed this)It’s backwards brooooo 🤣
10/16/2026

PSA to anyone installing a rear main seal.
(Mostly to the guy that installed this)

It’s backwards brooooo 🤣

10/15/2026

Ls3 swapped cutty in for a tune.

Customer- “hesitation, will not burn the tires, just runs poorly”

Me “alright alright alright” 😎

What more is there to love about a car than a navy blue metallic Pontiac trans am WS6?A blue ws6 with the northern perfo...
10/14/2026

What more is there to love about a car than a navy blue metallic Pontiac trans am WS6?

A blue ws6 with the northern performance touch.
Paint correction and ceramic coated ✅
Turbocharged aluminum cammed 5.3 ✅
Built 4l80e and FTI 3,800 stall ✅
Moser 9” with a 3.50 gear and torsion diff ✅
Fikse 18” staggered FM5 wheels ✅
Pump gas, leather interior, overdrive, and some of the best looking body lines ever ✅

The coolest part. This car will be for sale very soon. It could land in your driveway and all of your neighbors can be jealous.

In between it all. We assemble some pretty sweet engines. 450” LS7 is next on the chopping block. After January being ou...
10/14/2026

In between it all. We assemble some pretty sweet engines. 450” LS7 is next on the chopping block.
After January being our new high score for engines sold. We have a pretty promising end goal in mind for the year and I’ll post that when we get there!
5 more in line. A few more at the machine shop. A few to alter/refresh.

Address

1361 Pineview Street
Ga***rd, MI
49735

Opening Hours

Monday 10am - 6pm
Tuesday 10am - 6pm
Wednesday 10am - 6pm
Thursday 10am - 6pm
Friday 10am - 6pm

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