you will improve the bottom end with the pipe. Yeah I run the torque stuffer with the E-Series and it will give you a boost. If you do serious modifications to your Wolverine, take the torque valve out, its only good for light mods. After I get mine rebuilt, Im doing away with it. The E-Series doesnt some with a jet kit, with the 12 discs it comes with (you have to buy the additional ones, its cheap though all the disc pipes are like this) you dont need to rejet, after you buy extra though and run about 20, you need to. This will really wake it up from stock. I had a jet kit in mine before I got the pipe though, I got the jet kit from Rocky Moutain and the Pipe at Moto Joes. Jet kit was around $50 the pipe was $275 and the torque stuffer was $30. If I had it to do over again, Id prolly get a DMC, LRD, Graydon or a Paul Turner pipe just to be different. The E-Series I really like, especially that you can change sound levels and i like the sound of it, I havent heard any other Wolveirne that sounds like mine. When you change discs and take the spark arrestor off, it makes it louder and gives it a neat kinda muscle car sound. Its over 100dB though.

 

hey there. yea I'm still here. I got the alba kit and it really gave my wolverine a sack. My friend has a modded warrior with a high comp piston and the full yoshimira exaust (like $500 exaust) and he says it feels pretty close to his. (granted his is lighter and has more mods. I am definatly happy with mine. I re-jetted because it comes with the kit. you get all that suff for $315 including shipping from CA to CT where I am. I would highly reccomend it as a first step in modification. Yea you could mess with the valves and piston but if you just got it I would say get this first. I modified my airbox lid to increase flow and I run it with 10 disks right now. as to it being a 2003, it is the exact same engine. there is no kit difference for the year. Good luck