Nitro-300 Xtreme Performance, LLC

Nitro-300 Xtreme Performance, LLC Nitro-300 Xtreme Performance is built for drivers, racers, and off-road enthusiasts who demand more from their equipment.

02/24/2026

We've launched our online store where we'll have 100's of parts along with custom fabricated items made right here in Tennessee. Check it out at shop.nitro300.com.

01/16/2026

Getting her cleaned up for some light production

New (old) machine in the house.  Picked up a Hardinge Turret Lathe.  It's been sitting for a good spell.  Got her cleane...
01/16/2026

New (old) machine in the house. Picked up a Hardinge Turret Lathe. It's been sitting for a good spell. Got her cleaned and running. She'll need some more TLC as the variable RPM system is not working.

The collets that came with the machine needed a deep clean to function. Years of oil and grime made them almost useless. Not anymore! We have inhouse REM Surface Engineering machines. After a few hours the collets are like new!

Soon we'll be using this old girl for some light production. Stay Tuned!

New machines update:First we have our BrakeQuip Crimping machine all set and ready for training.  Soon we'll be making D...
09/06/2025

New machines update:
First we have our BrakeQuip Crimping machine all set and ready for training. Soon we'll be making DOT approved Brake, Clutch & Power Steering lines for the motorsport/off-road market.

Next!!! Our Brand Spanking New Tormach Inc. 1100MX machining center with tool changer and 4th axis. We'll be making chips with this badboy soon as well.

Stay tuned as even more exciting things are happening at Nitro-300

08/02/2025

New and exciting things are coming to Nitro-300 Xtreme Performance, LLC. We've partnered with BrakeQuip to make DOT certified Brake, Clutch and Power Steering hoses. Our machine & supplies should be here by mid-August.

We've also secured a new CNC Machining center where we'll be able to manufacture custom mounts & fasteners for the Motorsports/Off-road market. That'll be here by the end of August.

Stay Tuned for more updates!!!

11/07/2024

ChatGTP offers this about Cryogenic Processing:

02/14/2024

Hello all - it's been a Long time since our last post however we have a Ton going on. Stay tuned for big updates!!!!

04/18/2023

Bulletproof reliability has become the norm in the automotive world. While vehicles built in the ‘60s were only expected to last to that magical 100,000-mile marker, it’s not uncommon for the most basic of modern-day beaters to surpass a quarter of a million miles. Enhancements in manufacturing ...

It's been some time since our last post however we're as busy running Cryo/Rem Polishing as ever.The next service we're ...
04/05/2023

It's been some time since our last post however we're as busy running Cryo/Rem Polishing as ever.

The next service we're offering is Cerakoting - we just completed our first job. These are a set of 1962 Jaguar Exhaust Manifolds we Coated Glacier Black. They turned out great for our first run.

Stay tuned for more exciting updates coming soon.

It's been a while since my last post however we've been extremely busy.  We've probably Nitro-300 Xtreme'd 50+ Tremec 5 ...
06/10/2022

It's been a while since my last post however we've been extremely busy. We've probably Nitro-300 Xtreme'd 50+ Tremec 5 & 6 speeds thanks to American Powertrain this year.

This update is to show a brand new Yukon Gear & Axle Ring & Pinion for a GM 8.5" rear-end, my personal project.

As you can see - straight out of the box the ring & pinion are coal black and rough as a country road. Why is that a concern? Because all that soot, shavings and garbage will cause friction and wear immediately - now all that crap will contaminate the fluid and flow to the bearings - not a good idea for a build.

So first we Cryo treated the gear set for added toughness, but more importantly we then Micro Polished the set which not only removed the grit and grime, but polished away the microscopic Peaks & Valleys for a smooth - less friction surface. Now once installed the rear-end will require NO Break-in period. It's a no-brainer!!!

MotorTrend TV Roadkill PowerNation TV Hotrod Magazine Mopar Connection Faster With Finnegan David Freiburger
Rem Chemicals Crossville Dragway Crossville Speedway

It's been a while since our last update - however  Powertrain has kept us slammed with Xtreme Finishing.  Tremec TKX's a...
02/16/2022

It's been a while since our last update - however Powertrain has kept us slammed with Xtreme Finishing. Tremec TKX's are flying off the shelves.

It's been a while since our last post however we've sure been busy processingTremec Transmissions TKX & Speeds.  We curr...
12/08/2021

It's been a while since our last post however we've sure been busy processingTremec Transmissions TKX & Speeds. We currently have 20 sets in the house in various stages of process.

Shout out to American Powertrain sales department & build department - Y'all Rock!!!!!

MotorTrend TV PowerNation TV David Freiburger Mike Finnegan's Fan Page Gas Monkey Garage

Address

Cookeville, TN
38506

Opening Hours

Monday 8:30am - 4:30pm
Tuesday 8:30am - 4:30pm
Wednesday 8:30am - 4:30pm
Thursday 8:30am - 4:30pm
Friday 8:30am - 1:30pm

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