felters Posted February 5, 2006 Share Posted February 5, 2006 I'm doing some trackdays this summer and my exhaust is setting off car alarms when I drive down the road. How do I make it quieter? Quote Link to comment Share on other sites More sharing options...
stu999 Posted May 3, 2006 Share Posted May 3, 2006 Enjoy. It's all part of Westfield ownership Indeed it is. But not when the trackday organiser won't let you play because your car is deemed to be too noisy... The noise from your Westfield will mainly come from the exhaust, but there may also be a considerable amount of noise generated from the induction system too. Exhaust wise, you need more silencer. Longer, larger diameter, or ideally a combination of both. It is highly recommended to purchase a repackable type (the sound deadening materials inside will degrade in time). There are quite a few companies out there who specialise in silencers/systems, and the Westfield factory themselves also offer a 'trackday' silencer. Induction noise can be a tad more difficult to control. Airboxes are becoming more commonplace, in a bid to lessen the roar from a wide open throttle. Note that a change in the exhaust and/or induction system may effect the 'tune' of the engine - possibly requiring adjustments in fuelling and igniton timing. Quote Link to comment Share on other sites More sharing options...
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