The flange is built to match the stock 4AGE 20V ITB system to get a seamless and turbulence-absolutely free air movement during the combustion chamber. The supply time may be superior though. the final purchase acquired to me in about ten times. I had been anticipating it sooner This Plenum https://madbookmarks.com/story18494701/how-much-you-need-to-expect-you-ll-pay-for-a-good-4age-20v-for-sale