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#1
06-21-2018, 02:09 AM
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The Gramma car was the test bed for the installation video of the new Pypes oversized manifolds and exhaust system. It definitely woke the car up. I can honestly say that the Gramma car will leave our '73 SD455 in the dust. I did a little comparison timed sprint of a local on-ramp. The SD455 would get to the end of the short ramp at 50 mph. Gramma hit the same spot at 70 mph.
angry engine sound video clip: https://www.youtube.com/watch?v=ptAubfuN8N4 install video: https://www.youtube.com/watch?v=6b9nQOYa4Hk Last edited by njsteve; 06-21-2018 at 02:16 AM. 
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| The Following 2 Users Say Thank You to njsteve For This Useful Post: | ||
Baron Von Zeppelin (06-21-2018), PeteLeathersac (06-21-2018) | ||
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