Blueprinted bearings , Brakes , Suspension.

Total rebuild of steering and suspension . Wheel studs, brake lines, control arm bushings front and rear sub frame units . 

2026 SM For Sale

Alloy Radiators for Racing 1.6  1.8 - 1999 with cooling fans.

Large selection for every budget starting at $ 189 . Call for specific application.

New build in 2015 Raced in 2016 and 2018 US Majors and NE Division. 2017 NE Division STL Championship winning car . Being offered for sale with new Rosmar engine and transmission

Price $ 25,000 

Below are examples of our extensive parts inventory. Please call for latest inventory and special offers. We ship and deliver. Call ahead for delivery to race tracks in the North East.   Please call  9.00 am - 4.00 pm Eastern Standard time. We may be at a race track please leave message we will return your call.  

Alternators all 1990 - 2003 USED $ 100

Inspected tested and cleaned. Picture shows grooved pulley . V pulley type for 1.6 cars available .Starter motors for all years i,6 1.8 - 1999 and up.

  • Fenders $ 100
  • Doors $ 100
  • Front Bumper covers up to 1999 $ 150
  • Front bumper cover 1999- $ 200
  • Rear Bumper covers -99 $ 125 - 99 $ 200
  • Hoods -97 $ 250 99- 3-$ 300
  • Headlamps 99 - $ 125
  • Hard Tops $ 1000 .
  • Hundreds of used parts in stock call for prices.

 Hundreds of used and rebuilt Mazda parts in stock.


Divisional race winner 2018 . 2020 NEDiv STL Championship winning car .

The very best of everything built in to this car .

Kessler Engine ITS Spec including Carillo rods and custom pistons  . Mega Squirt ECU  . JRZ double adjustable dampers. racing Beat sway bar.  Racing Beat exhaust header. Rosmar Racing custom Dynomax exhaust system. Custom cold air intake system . Rosmar Racing blue printed differential. Rebuilt transmission . Super Miata motor mounts. Aim MXL Dash . Custom Roll Cage. Momo steering wheel . Cool box . Stroth Belts . Racetec seat . Speed com Raduim radios .Fire supresion system. Many more great components and modifications .


  •  1999 Spec Miata built for US Majors racing.
  • Complete new Build 2015.
  • Custom Berg roll cage
  • Double Nascar door bars
  • Custom Paint interior and exterior
  • Complete Data system .GPS.
  • Full Aim Dash MXL 2 .
  • New Livery wrap done in 2025
  • Raced in Champcar and winner of the 12 Hours of Thompson. 






  • Brand new blue printed front hubs and rear bearings.
  • Competition bushings.
  • Hauk Blue racing pads.
  • New Front brake Calipers.
  •  Kessler engineering engine .


  • Torson 4.3 blueprinted Differential .

ITS / STL Mazda Miata race car Sale .$32,995.

Air intake systems and components, Engine electrical components, fuel injectors ,sensors,pumps wiring etc.

Huge inventory of engine sensors, relays switches fuel components for engine management.  ECU $ 250 Fuel injectors $ 25 Fuel pumps $ 75 Call for more prices.

Rosmar Engineering . Race engines .

Complete high quality race engines from Rosmar Racing. Custom built for all SCCA classes. SM and STL Engines starting at $ 6,500 . special order only.

Please contact me directly at 203 901 3076 for more details .

Custom Build Blueprinted Drive Axles and Brakes.

Hand build drive axles measures polished and custom build with special Red Moly High impact Grease. $ 150

OEM brake Calipers rebuilt to factory spec . call .

Differential Rebuild Torson  Conversion.  Crown and Pinion set up.


Custom set up for low drag power and speed. Call for Pricing .

178 Sunny Valley Road , Unit # 3 . New Milford CT 06776    email rosmarllc@yahoo.com     Phone 203 901 3076

Transmissions for 1.6 /1.8 1990-1997, 1999 Six Speed Transmission for 2003-...............

All Used 1.6   $ 500

All Used 1.8   $ 500

All Used 1999 Five speed $ 750

Six Speed   $ 700

We also provide rebuilt units price range from$ 1200

OEM Used Radiators for all cars 1990/93 -1994/97 and 1999-  $ 75

Guaranteed selected ,tested used OEM radiators better than aftermarket.

Differentials for 1.6 open and LSD . 1.8 4.10 and  1999 4.30 Torson,

All used differentials cleaned and inspected prices start at $ 300 for open. 4.30 Conversion kits available with drive shaft and axles. Torson Differentials $ 1200

Rear tail lights for 1990/97  $100 each        1999-   $ 100 each .

Good Quality no cracks or breaks clean, include bulb holders and electrical connectors.