i was thinking about getting the R4 pro meg silp on for my ds do they give pretty good power and how is the noise on them

 

I don't have the R4 (eaglecollector does) however I like my E-Series quite a bit. The pipe is about two years old and still looks as good as it did the day I bought it. There are many pipes which after the first six months can't make that claim. I have the stock number of discs installed, however I've heard that an E-Series pipe with 18 discs is a killer drag racing pipe.

 

Good pipe, but very loud. Gets real annoying after awhile.

 

Not that there is any comparison but the E-Series ROCKS on the KFX and its fairly quiet and a FSA spark arrester to boot.

 

I had the E series and hated it!!!! its ugly and sounds like a tin can. I traded my E for a MBRP and diden't notice a difference, I think there both junk but at least the MBRP looks good!