Love my LM with the stock system. I just put my American Racing headers on and the LM are way loud but ugly loud. Trumpets raspy drone, pops and crackles that are extremly loud. I put the stock mufflers back on so I could at least drive the car without being embarassed about the sound. The trumpets are there even with the stock muffler. For those that have done the resonator addition to the system. Have any of you had the SLP LM for the axle back? I really would like to know if they fixed the problem before I go cutting up my over axle pipes.

Thanks

 

I don't have SLPs but I don't think its the muffler problem at all.... its all in the header to midpipe relationship. I have shortie headers, offroad H, and Borlas and added resonators- no more trumpeting, no more drone.