Flowmaster exhaust
06-03-2014, 01:09 AM
#1
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Location: Orange County CA
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Flowmaster exhaust
Has anybody tried the flow master exhaust on the C7 corvette. Im very curious to know if there are any gains and especially sound?
06-03-2014, 09:02 PM
#3
The last time I looked at the C7 Flowmaster exhaust, it appeared to not have the NPP muffler valves and not have the AFM muffler valves.
So this is an exhaust for those without NPP and then taking off AFM. Well, disable the AFM with the inTune device. Then if the exhaust should be popping too much try a K&N oiled air filter. Next, try a richer air/fuel ratio with either the inTune device or the HKS AFR device.
But for those wanting to stay closer to OEM, the BB Fusion has both NPP muffler valves and AFM muffler valves. Then the BB PRT and BB Bullet have only the AFM muffler valves
.
So this is an exhaust for those without NPP and then taking off AFM. Well, disable the AFM with the inTune device. Then if the exhaust should be popping too much try a K&N oiled air filter. Next, try a richer air/fuel ratio with either the inTune device or the HKS AFR device.
But for those wanting to stay closer to OEM, the BB Fusion has both NPP muffler valves and AFM muffler valves. Then the BB PRT and BB Bullet have only the AFM muffler valves
.
Last edited by B Stead; 06-03-2014 at 09:06 PM.
06-04-2014, 02:11 PM
#4
Drifting
I would imagine that you will retain the stock AFM valves. You will lose the NPP valves.
From what I have read about other year vettes is that you will have a lot of drone with the Flowmasters. Power gain will be minimal for a axle back, it would just be done for change in sound, not really about performance.
From what I have read about other year vettes is that you will have a lot of drone with the Flowmasters. Power gain will be minimal for a axle back, it would just be done for change in sound, not really about performance.
