This eliminates severe turbulence caused when stock type mufflers are welded to the collectors. All of this will hide inside the collectors & your collectors weld to the muffler body. Photo showing the adapters trimmed – nice smooth transitions into the muffler flowpaths. Showing inlet end of Cobrapack & new adapterĬut off the 3” muffler inlet & cut adapterĬut-off excess 3.5” diameter adapter – leave it a little big for further trimming/grinding as this will just barely fit inside of the merge collector 3.5” OD end: (all you are using is the flare area) One end of the adapter is 3.5” OD, the other end is 3” OD. Here is the procedure to install the inlet “funnels” – part # 3530-AD. 48357 - (248) 889-4364 POWERSTICKS & AccuSeals -Īwarded Best New Performance Products of 2004 by RPM Motoring Monthly! NO MAN WITH A GOOD CAR NEEDS TO BE JUSTIFIED.
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