Tried to post this in the Rotary Performance sections...but since no one looks there...I'll try the REAL section!!


Which do you think would do the job more effectively...the Magnaflow is longer and wider making me think it would have more packing, thus being quieter. Unless the Borla technology will make the smaller casing just as quiet....already have two 4" round magnaflows as presilencers in a long primary system.

Also considering dumping the RB long primary system and getting the SDJ system to collect earlier, but am worried about power loss, anyone have experience here?

What are the old rotaries running to calm the noise!!!...more importantly, the drone at crusing speeds (2800-3200rpm)