1955 Chevy Truck QTP Electric Exhaust Cutout - Loud, Proud & Quiet

Here's the QTP tucked up in place.

Josh continued the install by routing 2 1/2-pipe towards the Flowmaster mufflers.

The next move was to hang the passenger side--and, just like with the driver side, make sure the QTP was tucked up out of the way at an equal length. Not matching the exhaust pipe lenght can affect overall performance of the QTPs when they are uncorked (opened up).

Notice that Josh has paid close attention to squaring the Flowmasters up with parallel lines of the truck's chassis.

Notice that Josh has paid close attention to squaring the Flowmasters up with the parallel lines of the truck's chassis.

Continuing in that vein, Josh completed the job by matching the angle the dual pipes exiting the Flowmasters were at. Then the truck was ready for Harold to wire the QTPs up.

The QTPs come with good instructions, so there's no need to repeat them here. The red light on the QTP switch is closed.

Flip the switch to green, and the QTPs are open.

Back to red, and the QTPs hush right up-- then it's back to the sweet sound of a pair of Flowmasters.

"It's all BS until it hits the dyno." Thanks to the Mustang Dyno at our tech center, we were able to prove for ourselves (not just taking the manufacturer's word) that these things really made power. Sometimes more noise isjust less power.