Mercedes technical chief Paddy Lowe has backed up Williams Pat Symonds' comments that F1's 2016 challengers will be noticeable louder due to the new exhaust regulations.

Since the new generation of Formula 1 began in 2014 with the introduction of V6 turbo engines with hybrid technology the powertrains have continually been criticised for a lack of noise compared to its predecessors.

Last week Chief Technical Officer at Williams Symonds explained due to the revised exhaust regulations he expects the engines to be a little louder. The change in technical regulations means the engines must include two wastegate pipes in its exhaust system rather than just one.

Lowe has supported his rival's comments and is expecting to have similar levels of volume increase with both teams using Mercedes power units.

"In the last two years we've had a situation where the main exhaust goes through one tailpipe," Lowe explained. "Then we have a thing called the wastegate, which is a way of spilling out any extra pressure from the exhaust system.

"[Now] we have to duct that air separately through an extra tailpipe intended to make more noise. It will work, and we'll see how much louder they'll be. Some measurements have been made in labs and they've seen some significant increases.

"The reason for that is the wastegate was causing a sort of silencing of the main exhaust pipe, so by removing it from the main exhaust pipe we have less silencing."

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