Location:  Tom's Performance Machine and Repair

Purpose:    Install and test custom "X" crossover pipe constructed by Louis Ott

The Car:    87S4 AT 133,000 miles, Adj. FPR, Autothority Chips, RMB, freshly flushed/calibrated injectors.

Test runs were conducted before the installation to determine baseline.  These runs are shown below (Runs 002, 003, and 004)

 

The next set of runs were done after installing the X crossover (Runs 006, 007, and 008).

Here are the curves of the best baseline run (004) compared to runs 006/007.  Nice gains throughout the whole range

Nice gains and a great sounding exhaust too.....Thanks Louie!!!