Flowmaster original 40 series

Go to a muffler shop, buy a 40 series up there if you're not sure bout pipe size (I duno it off the top of my head), and have them weld it on there. Should be about 100

-rockstate

I too wanted to go with that setup, but it looks like Flowmaster doesn't make a 2 in 1 out 40 series. They do have a 2 in 2 out 40 series part #9525454.

keepontrukin said:

I too wanted to go with that setup, but it looks like Flowmaster doesn't make a 2 in 1 out 40 series. They do have a 2 in 2 out 40 series part #9525454.

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this was my first muffler. its a super40 dual in/out 2.5'' dia. it sounded good,but i wanted louder so i opted for the 10 series.

ballin said:

this was my first muffler. its a super40 dual in/out 2.5'' dia. it sounded good,but i wanted louder so i opted for the 10 series.

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That must sound pretty darn loud! I had never thought of going with a race muffler.

I posted response to a similar thread in the past. I have dual "Super 44's" with true dual pipes out behind each wheel. A cross-over pipe prior to mufflers on 08 4X4 CM. It sounds great with all the noise you need when you want it and not an overwelming amount of interior resonance. Choose wisely for a muffler shop. Find someone who works on hotrods and performance cars and you'll be very happy.