1968 Pontiac Firebird - Headers

1-7/8" tubing Edelbrock D-Port header flanges.

Doug welds 1-7/8" tubing to a pair of Edelbrock D-Port header flanges.

4-way collectors

The header tubes feed into pre-formed, 16ga. steel, 4-way collectors. The collectors, in turn, feed into 3.5 x 2.25-inch oval tubing which will carry the exhaust to the mufflers.

3.5 x 2.25-inch oval tubing Spin Tech Performance muffler

Oval tubing was used to give greater ground clearance. Whe it came time to hange the mufflers, it was decided that they hung too low. something would have to be done about that.

Spin Tech Performance mufflers Spin Tech Performance mufflers

Custom Spin Tech Performance mufflers.

Spin Tech Performance muffler Spin Tech Performance mufflers

In order to tuck the mufflers up under the rear of the frame, we had to chop off the ends of the Spin Techs and modify the inlets and outlets.

Atech Motorsports, electric exhaust cutouts

Atech Motorsports, electric exhaust cutouts

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Hot Rods & Custom Stuff, 2324 Auto Park Way, Escondido, CA., 1-800-HOT-ROD-5.
Hot Rods & Custom Stuff - builds, restores, paints, services and sells parts for classic autos, cars, trucks and street rods.