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The large BIG MOUTH induction consists of an air dam that sits behind the frille and captures & directs high pressure air into the factory intake. The kit includes an intake cover that minimises air pressure loss.
This low cost entry level cold air induction may be used on its own or in conjunction with the Growler airbox.
Expect power gains of up to 10rwkw (turbo), increased torque and better fuel economy.
Posted by Pete A on 30th Dec 2011
Got the Big Mouth for my FG 6T for Xmas. Kids wanted to buy something for me. Car just out of warranty, didn't have a lot of dollars, first upgrade, reviews sounded good, so why not? Well, I fitted it Xmas day (took about 20 mins)and I cannot believe the difference straight away. Low end torque increase is really noticable. Significant better response down low. Other reviews say it takes about 2,000K's for the computer to really "learn it" but I don't know what that means. Right now the best $100 odd bucks I could imagine being invested.