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Featured Products
Master EFI Tuner - GM EFI
This book, Master EFI Tuner - GM EFI, will provide you with all of the necessary theoretical knowledge required to understand and tune General Motors' EFI systems. You get straight forward information that is easily understood and immediately useable by you to tune your own engine! 
Tuner's Pro Kit - HP Tuners GM Pro & Master EFI Tuner - GM EFI
Become a Master EFI Tuner! This kit includes HP Tuners Pro tuning software and Master EFI Tuner - GM EFI, our 207 page EFI tuning book that includes in-depth tuning information & theory along with dyno-proven case studies that show you how the tuning process is applied to real-world examples. With this package, you'll save money and be able to tune vehicles like a Pro!  |
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Welcome to MASPORT SPEED SHOP 
Welcome to MASPORT SPEED SHOP, your EFI TUNING EXPERTS.
ORDER YOUR COPY OF MASTER EFI TUNER - GM EFI NOW! Master EFI Tuner has proven to be a smashing hit with EFI tuners and shops alike, so it's no wonder that we've already sold out of four print runs. We are now accepting orders for MASTER EFI TUNER - GM EFI. CLICK HERE to GET YOUR BOOK ORDERED TODAY!
COMING SOON: MASTER EFI TUNER - FORD EFI. Learn how to tune Ford EFI vehicles with this new tuning book coming in early 2010. Same quality, just as easy to follow, now for the FORD FANS!!
We're open Monday-Friday 9:00-5:00. (561) 338-9321.
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