Engine Tuning and Diagnostics

Instruments, chips, devices and software for sale to diagnose issues within an engine, and maximize its tuning for optimal performance. These can be used to tune a drag race, circle track, oval track or sports car engine for speed and power, but are equally applicable to street cars,hot rods, trucks and muscle cars to improve their fuel efficiency, engine torque and power, and other performance needs.

Engine Tuning and Diagnostics Close Subcategory -

Last Post: Today

Premier Ads (View All) Get Listed Here - Only $20

Filter By:
Sort By:

Nitro- methane 100% 1 gallons -
1 Gallon Torco Nitromethane 100% Nitro cannot be used straight. It must be...

Posted Today, 12:50 AM
Nashville , TN

We will flow test you mechanical fuel pump and report to you with two...

Posted Today, 12:50 AM
Nashville , TN

This was bought new in 1966 and is a one owner, and used 5 or 6times. In excellent condition with original box, and box is in good shape too.

Posted Today, 12:45 AM
Cardwell , AR

AEM V2 ECU for OBD1 Honda or Acura never used. 

Posted on 09/17/2019
Aiken , SC

Motec M4 with harness and distributor and 3 bar map sensor for Honda B-Series. Was on LS-Vtec. Has tune on it for 160lb injectors and E85.

Posted on 09/17/2019
Aiken , SC

brand new EFI-Systems Series 4 PMS. Fits 89-93 5.0L Mustang with 2 bar MAP sensor, never used, easy to use, excellent...

Posted 2 days ago
Dearborn , MI

Purchased in Dec 2018. Free update still available. Owner retiring

Posted 2 days ago
Millbrook ,

Fast ecu in excellent shape, no issues at all. Has 16 injector upgrade

Posted 2 days ago
Waxahachie , TX

Racepak sd card reader makes pulling data from your v300 easy and fast. Brand new.

Posted 3 days ago
Tallahassee , FL

Replay Tach w/RPM Switch
Digital Delay, the company that invented and patented the Crossover, designed and manufactured the Replay Tach with RPM...

Posted 5 days ago
Charlotte Hall , MD

Copyright © 2005-2019 MH Sub I, LLC dba Internet Brands All Rights Reserved.

Designated trademarks and brands are the property of their respective owners. Use of this Web site constitutes acceptance of the RacingJunk.com
Terms of Use, Classifieds Disclaimer, Privacy Policy, and Cookie Policy