High-heat coatings that keep exhaust heat in and reduce heat soak—helping your engine bay stay cooler.
Premium high-heat ceramic coatings
Reduce heat. Protect parts. Look incredible doing it.
Knott Hott Ceramic Coatings applies performance-focused finishes for headers, turbos, exhaust systems, and select internal engine parts—built for durability, efficiency, and a premium look.
Up to 1800°F rated coatings
Family-owned Idaho shop
Emmett, ID • Serving Treasure Valley
What we coat
Core services with a premium finish.
From daily drivers to race builds: we apply coatings that prioritize durability, thermal control, and a clean, high-end aesthetic.
Custom colors and premium metallic finishes—designed to stand up to heat and look sharp.
Lower outside turbo temps and protect the housing. Built for performance and longevity.
We also coat pistons and bearings to reduce friction—supporting efficiency and durability.
Heat dispersant coatings for radiators, heat exchangers, and oil coolers—built to work hard.
Gallery
Real parts. Real finishes.
A small sample of coated headers, turbo parts, and performance components. Want to see something specific? Contact us and tell us what you’re building.
Simple process
Quality you can see—built on prep.
Coatings only perform as well as the surface beneath them. We focus on consistent prep and careful inspection so your parts come back clean, protected, and ready.
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Prep & blast
Remove contaminants and create the right surface profile. -
Mask & coat
Apply the right coating system for heat, wear, and finish goals. -
Cure & finish
Controlled curing for durability, then final finish checks. -
Inspect & return
Final inspection before pickup or shipment.
Have a unique application? Tell us what you’re building and the environment it sees (heat, road salt, track use, etc.). We’ll recommend the best coating path.
Coating systems we use
FAQs
Fast answers, no fluff.
A few of the questions we hear most. For the full list, visit the FAQ page.
What temperature can exhaust system coatings withstand?
Some testing has shown coatings can handle base metal temperatures in excess of 1800°F. Color change can occur at lower temperatures and doesn’t necessarily indicate coating failure.
What parts should be coated?
Any part subject to friction, heat damage, corrosion, or abrasion—including engine components, drivetrain parts, exhaust, firewall, braking, and wheels.
Will I see a temperature change?
Reports and testing show coated parts can run cooler. Thermal dispersant coatings have shown a minimum 20% decrease in temperature in various tests.
Ready when you are
Call for a detailed estimate.
Average price is $300 depending on size and choice of coating. Call for a more detailed estimate. Tell us what you’re coating and your finish goals—we’ll recommend the right coating system and next steps. For the fastest response, call. Emails are checked in the mornings only.