What is the difference between the Force II and the American Thunder exhaust systems outside of the obvious muffler configuration? Which would be best for a stock L78 with headers only? I am trying to keep the car as stock as possible thanks

If you want stock as possible, I would think the Force II would be the way to go.

I've had both systems on different Camaros, and I like the Force II better. A little quieter, but sounds great at WOT. I think the sound is because the muffler is positioned farther back. However, the AT system is easier to install, and has the good looking stainless tips, which I believe all for the same price as the Force II.

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Matt Jones
1969 Base Camaro
Vortec 355, Perf. RPM, Demon Carb., TH-400
All sheetmetal is NOS GM
See my UPDATED webpage at: http://www.geocities.com/compuboy007/ (Updated: 1/13/03)

I agree with Matt. I love my AT system (sounds bada$$) but, if you want to keep the car somewhat original, go with the Force II.

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1969, X-44, Export Model, Hugger Orange, Std. Int., BT 12 bolt, PDB, GMPP 350HO, M22 Supercase, SSM Lift Bars, AirGap, Holley 750, FlowMaster American Thunder Exhaust, FlowTech Headers, 15X7 Ralleys

Who makes Force II?

Flowmaster makes them both. American Thunder is 2.5" duals, force 2 is a single exhaust crossflow style.

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68 Coupe, 350 4-speed
Jim's Camaro Corner (http://www.personal.psu.edu/jxu109/)