CT4-V CT4-V BW Exhaust

[Raj01]

I recently dropped the muffler on the BW and did an 10” muffler to the straight tips and a straight pipes to the valved tips and it sounds awesome. I saw this on the forum with a 5. It now sounds Much more aggressive and the burbles are consistently there when the valves are open, valves closed it sounds nearly stock. The video is a brake boost launch in V mode.

 

[bl4ck_wng]

How much louder is it vs stock with the valves open?

 

[Raj01]

Much louder compared to stock it feels about 60% louder when the valves are open and the pops are almost like thunder. There is a bit of drone when cruising on the highway and streets but the different of noise in the cabin is relatively the same but from the outside it is crazy.

 

[bl4ck_wng]

Some drone with the valves open is no problem as long as they can be closed up for the neighborhood. Back in the day I used to not care at all, but nowadays NJ cops are more like proctologists.

Did this set a CEL?

 

[Raj01]

It did not set CEL, I think as long as the valves aren’t touched or messed with you should be good.

 

[mfbmike]

Any muffler modifications behind the o2's will not trigger a CEL. CEL's to do with exhaust are when you start messing with downpipes.

 

[bl4ck_wng]

Hey OP, now that you have had this installed for some time-- what are your overall thoughts on drone?

I would like to keep the valves closed setting as close to what OEM is-- Does yours drone when cruising at highway speeds with valves closed on this setup? or is it close enough to stock to use BT for a phone call/use the radio?