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High Performance Automotive Transmissions & Driveline Parts

Welcome to Paramount Performance Products

Paramount Performance is a the top tier HEMI performance tranmission shop in the market! If you are looking for a transmission that will handle the additional power of forced induction, nitrous, or just the raw power of your new HEMI NA stroker, then you have come to the right place. We cover the older NAG1 transmission all the way through latest HP70 and HP90 transmissions with high performance upgrades, and even transfer cases and torque converters for these platforms!

To purchase Paramount Performance products or to speak to a representative, please visit modernmusclextreme.com.

Paramount Performance Products

2366 Faith Caroline Blvd
Rock Hill, SC 29732
Phone: (704) 451-6332

Business Hours:
Monday - Friday 8:30am to 5:30pm

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Paramount Performance is proud to offer this performance upgraded Chrysler HP90 A8 Hellcat transmission. Through extensive in-house testing and R&D they have developed a series of internal upgrades including clutches, clearancing, and other changes made to increase the holding power of this transmission. As with all of their other upgraded transmissions that they produce, our HP90 offering is second to none when it comes to all out performance and reliability.
Paramount Performance is proud to offer this performance upgraded Chrysler HP70 transmission. Through extensive in-house testing and R&D they have developed a series of internal upgrades including clutches, clearancing, and other changes made to increase the holding power of this transmission. As with all of their other upgraded transmissions that they produce, our HP70 offering is second to none when it comes to all out performance and reliability.
Paramount Performance is proud to offer this performance upgraded Chrysler HP70 Jeep SRT8 transmission. Through extensive in-house testing and R&D they have developed a series of internal upgrades including clutches, clearancing, and other changes made to increase the holding power of this transmission. As with all of their other upgraded transmissions that they produce, Our HP70 Jeep SRT8 offering is second to none when it comes to all out performance and reliability.
If your NAG1 / HEMI powered hotrod is pushing between 500 & 1350 FT-Lbs at the crankshaft then this is the transmission for you. Paramount Performance is the top name in the HEMI market for producing transmissions that can handle the added horsepower reliably! Available in multiple power levels, this NAG1 transmission can handle whatever your throw at it and get your horsepower to the ground!
This Jeep SRT8 Transfer Case by Paramount Performance has proven itself over and over again to reliably deliver the power from your HEMI to all 4 wheels. Built to withstand the extra power delivered by modified HEMI engines, this transfer case is a MUST have when you want all 4 wheels hooking on the blacktop!
Custom built to match your hotrod's modifications! Supercharged, turbo, twin turbo, NA, NA stroker, 440, nitrous etc., ALL take different converters. That is why I came out with the new “Dominator Series” torque converter. Extremely high stall speeds available for your NA Chryslers. WONDERFUL drivability on the street.

Parmount Performance Products also produce high performance transmission solutions for foreign platforms as well. I have you a question about any of our products please feel free to contact us. Thank you.

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