Does anyone know if this is a good exhaust and is it worth it 2 buy a full system or just get a slip on?
It depends on your reason for getting it...
do you just want sound and looks.. or performance too...
if you want sound and looks get the slipon.... it gets about 2hp over stock
if you want performance get the full system... it gets 4-6hp over stock... plus it gets the sound and looks too...
but with the full system you will likely need to remap your fuel system or get a power commander etc... otherwise it won't run quite as well as stock.. or so I found... when I went with my full M4... I now have the PCIII so I'll see how it works out... I think I was a little too lean with the M4 full system and no changes to the stock fuel mapings...
It seems better so far but I haven't had the chance to open it up yet... too much snow and ice... but it is good in my condo parkade ;D and around the neighborhood...
Then again I adjusted my TPS before I put on the PCIII so instead of 3500rpm it kicked in just under 2000... I couldn't get it any better... every time I tightened the bolts it put it out of synch... anyway 1900 or 1800 is good enough for me I was used to the 3500 setting....
anyway... I like the looks of the M4 and the sound is good.. but I think my old 99 sv with the hindle sounded better.... I guess I'll see how my M4 sounds in a 15-30000 km...
M4 seems to be better built than some systems... better than hindle and several others.... and many recommend it including racers as well as street riders.... it is certainly louder than a yosh slipon though.. so if you like quiet pipes... you'll need something else.... but it is still not as bad as the harley guys...
Blair aka SV-Racing-Parts from this site sells them... I looked around and gave him the prices... in the end I got a pretty good deal on mine... if you;re interested give him a shout... I've bought a bunch of stuff from him now and always got a good price, had good customer service and got the product in very good shipping times.... and since I live in Canada he makes it even better as he is on the border between the 2 countries... never had a problem
Oh and the full M4 is only about 690-750 now depending on the system you get... and they are pretty easy to install...