I'm looking for a new exhaust for my 04' S4R.
Right now I'm looking at Temi's slip-ons.
Do I need a PC3 or a chip?
I know that I should get a PC for a full system but I'm not sure about the slip-ons.
How are the Arrow slips?
I bought my S4R (blue/white stripe) Saturday with the full Arrow system (dealer did his magic stuff to the f.i. etc.), one tooth smaller front sprocket, removed all that stuff from the rear, put on a c.f. radiator fairing, c.f. vented clutch cover (I like the "music"), bar ends (with lane splitters) and took off for the mountains. Unbelievable! Even though I'm supposed to stay at 6K for 600 miles, I found that almost impossible. In answer to your question about the Arrows, they look cool in c.f. because they match all the other stuff the bike comes with. They are also loud! My dealer recommended them over other brands as having more torque and more hp so I took his word for it. I checked their website and their figures were impressive. I haven't regretted getting them at all.