Fupower Custom Auto Parts Manufacturer - Best Racing parts manufactuer in China
Q50 Q60 VR30DDTT Resonated Lower Downpipes
In-house dyno testing was performed on a 3.0tt 300hp variant which was completely stock aside from these downpipes. Not only was peak power and torque increased without performing any additional mods or tuning, but power and torque see noticeable improvements across the entire range. Also of note is that lower downpipes will not trigger a CEL as long as the upstream (primary) cats are functioning normally.
Lower downpipes will only help your engine breath better as you increase boost pressure, upgrade your intakes, and the rest of your exhaust system. The in-line resonators do a great job keeping rasp down. In fact, on our testing car (with a full stock exhaust), it really only sounds louder during hard acceleration. When mated up to free-flowing aftermarket exhaust systems, these will provide a throatier sound than stock cats, without the rasp you get with straight down-pipes.