Fitment on my 08 drz400sm is great! No issues what so ever. Matched perfectly with the powercore4 slip on I already had installed on the bike. You will however need an exhaust clamp which is not included. (1.69 inch outside pipe diameter) No big deal. Comes with 4 fmf stickers (stickers are always a plus) Color of the pipe is a silver-ish finish compared to the slip on which is more gold-ish in color. Just running the bike for about 10 minutes, the header is changing to that nice golden color to match the muffler. Paired with the powercore 4 muffler, this thing is LOUD and flows great!!! getting on it, you will be heard a good 1/2 mile away or more. Make sure you rejet the carb properly along with the 3x3 airbox mod. 10/10 great upgrade and would definitely recommend.
Verified purchase: Yes | Condition: New
Installed the power bomb header on my 2008 DRZ 400s in place of the stock header which slipped into a Pro Circuit exhaust. The diameter of the slip on pipe for the Pro Circuit exhaust had to be expanded. I took it to a local muffler shop that expanded it for $10. The new header and exhaust fit together snuggly. Upon starting up the motorcycle, I noticed a lower, throatier sound which was pretty cool. Took it out for a test run and felt there was better throttle response and acceleration from the low end. I really dig the sound. i think it should produce a little more torque for hill climbing. NOTE: The stock carburetor had already been jetted (not sure of the specs) and I had already cut the 3 x 3 opening in the top of the air box under the seat. I believe the Power Bomb header further supplemented the gains in power achieved from these 2 other mods. Read full review
Verified purchase: Yes | Condition: New
Was new in original packaging high quality stainless steel head pipe that fit even with my skid plate. The pipe increased the horse power in the low and mid range and made the bike more fun to ride. FMF
Verified purchase: Yes | Condition: New
Fits well and works properly if you have the FMF slip on muffler. Increases HP and sounds good as well. Would definitely recommend using this product. The FMF muffler will not have the correct fitment to the stock exhaust header so this FMF header pipe is a MUST if you want your exhaust to be sealed correctly and you are adding a "slip on" exhaust to your motorcycle.
Verified purchase: Yes | Condition: New
This pipe was a perfect fit. Looks great and adds more power.
Verified purchase: Yes | Condition: New
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