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<blockquote data-quote="SlugButter" data-source="post: 8782670" data-attributes="member: 678073"><p>Building in a sedan is going to be harder to get loud than your hatchback was. You’ll likely need to seal off the trunk and fire your subs/port into the cabin via the rear deck or where the rear seat backs are. I tried to hit 150 in a trunk with a sundown x 15 firing to the rear and never even made it close. 148.3 was the best we could do without sealing off the trunk and firing it forward, which we never did. I would’ve had to build the box in the actually trunk itself instead of sliding a box in that I built in the shop. I did the flare so it could be removed to change tuning from 30 to 38 HZ which gained a bit on the meter but I realized right away that 150 was going to be too expensive for the guy to hit it without doing a much more complicated and expensive build. We had discussed moving to an 18 inch sub firing forward into the cabin and using the entire trunk but he never pulled the trigger on spending the money. Hitting 150 out of a trunk is a good challenge. If you have a little money and a lot of time it can be a fun ongoing project.</p></blockquote><p></p>

[QUOTE="SlugButter, post: 8782670, member: 678073"] Building in a sedan is going to be harder to get loud than your hatchback was. You’ll likely need to seal off the trunk and fire your subs/port into the cabin via the rear deck or where the rear seat backs are. I tried to hit 150 in a trunk with a sundown x 15 firing to the rear and never even made it close. 148.3 was the best we could do without sealing off the trunk and firing it forward, which we never did. I would’ve had to build the box in the actually trunk itself instead of sliding a box in that I built in the shop. I did the flare so it could be removed to change tuning from 30 to 38 HZ which gained a bit on the meter but I realized right away that 150 was going to be too expensive for the guy to hit it without doing a much more complicated and expensive build. We had discussed moving to an 18 inch sub firing forward into the cabin and using the entire trunk but he never pulled the trigger on spending the money. Hitting 150 out of a trunk is a good challenge. If you have a little money and a lot of time it can be a fun ongoing project. [/QUOTE]

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