I had one similar to 2 except my pipes didn't Y into the muffler. The muffler had dual pipes in. Pretty good set-up.

it works for me. i dont really have anything to test it against. its a bit on the loud side, yet after doing a ghetto BP is not that much louder than with the stock GSLSE engine.

I think I am going to go with the second design, sans resonators, and into one muffler with dual inlets and outlets, like Viperx7 said.



Should be on ther end of next week! Today, hopefully we start it up!

The further back the "y" connects, the power band moves higher.

Good for ported engines.