Check the listing for details. Porsche 997 Cold Air Induction Resonator Delete Air Filter Box Plug Bung Cap. Condition: New. Listed at 37.48 USD. THIS LISTING IS FORThe- Air Filter housing Bung Plug for use in the resonator delete conversion This Quality Plug is made from high grade Aluminium and is hard anodised for a long-lasting superior quality product compared to others currently available *Take note this listing is for the Air Box Plug only and does not include the induction pipe. The Air Filter box modification is an upgrade that removes the resonator box from within air filter housing. This will increase the surface area of the filter and increase the available flow of air by 25%.It combines this with a slight increase in induction roar, similar to fitting a mild sports exhaust whilst retaining the original intake system.The modification is said to increase midrange acceleration between 3000-6000 RPMFitment - Air box Notes - Bung Only pipe or full kit available in separate listings *******************THIS PART WAS WILL BE SUITABLE FOR MODELS *MAKE - Porsche Carrera 997MODEL - 2005 - 2012ENGINE - Petrol 3.6 / 3.8GEARBOX - Manual or Auto********************************WE INCLUDE RECORDED DELIVERY AND RAPID DISPATCH AS STANDARDWe hold all our own stock here in the UK. We supply VAT invoices on request for business customers.YOU HAVE 14 DAYS TO RETURN ITEMS FOR WHATEVER REASONWe test all our products to ensure hassle free satisfaction for our customers.IF YOU HAVE ANY SPECIFIC QUESTIONSTHEN PLEASE ASK US VIA THE eBay MESSAGE SYSTEM e-Breaker A long-standing UK based seller. Committed to Providing quality products. and excellent customer service