R-4 or E-SERIES for RAPTOR

[pairanutz]

I need your expert opinion on RAPTOR pipes -which is the best power low-mid-top,which is quietest-loudest -any problems with fit and finish -Im thinking of the R-4 or the E-SERIES from WHITE BROTHERS good -bad ,any info would be helpful ,I want just agood slip on -thanks for the help.:confused:

[400grl]

My boyfriend has the R-Series - no problems and he loves the sound - very loud and imposing, especially on the track. It's better than the E-series because the E-series might eventually break at the weld (between the muffler and the mid-pipe). The r-4 has no weld - muffler is held on with a series of springs, so it's flexible at the joint.

I was going to buy Alba's full system for my Raptor when I had it - it's nice, good horsepower gains.....but I don't know anyone else who runs it.