400ex Dyno Tuning and New Exhaust

In this video we finally upgrade our 400ex's stock exhaust with our new Rossier R4 full exhaust system. We also did a full dyno session comparing each stage of the process. I'm super stoked with how well the numbers and performance came out. Jay did an awesome job tuning as always! Shout out to Rossier for making a great looking and sounding exhausts!

Illinois Powersports https://illinoispowersports.com/

New Rossier R4 Full Exhaust https://petehager.com/products/copy-o...
Dynajet Jet Kit https://www.rockymountainatvmc.com/pa...

2004 Honda 400ex
Houser Racing Steering Stem https://petehager.com/products/houser...
Urmosi 720 SBC Clamps https://petehager.com/products/copy-o...
Urmosi Factory Edition Throttle https://petehager.com/products/urmosi...
Pro Taper Contour Fat Bars https://www.rockymountainatvmc.com/pa...
Motion Pro +2 Throttle Cable
Motion Pro 1987 Honda 250x Clutch Cable
Factory 43 front bumper
DRW Chain Slide https://petehager.com/products/drw-ch...
DRW Swing Arm Plate https://petehager.com/products/drw-sw...
DRW Full Belly Skid https://petehager.com/products/drw-fu...
DRW Rotor Guard https://petehager.com/products/drw-ro...
DRW Sprocket Guard https://petehager.com/products/drw-re...
DRW Case Saver https://petehager.com/products/drw-ca...
Pro Taper Universal Clutch Lever https://www.rockymountainatvmc.com/pa...
K&N Air Filter https://www.rockymountainatvmc.com/pa...
Outerwears Pre Filter Cover https://www.rockymountainatvmc.com/pa...
ODI Lock On Grips https://www.rockymountainatvmc.com/pa...
Tusk Shift Lever https://www.rockymountainatvmc.com/pa...
Primary Drive X-Ring Chain https://www.rockymountainatvmc.com/pa...
Primary Drive Front Sprocket https://www.rockymountainatvmc.com/pa...
Primary Drive Rear Sprocket https://www.rockymountainatvmc.com/pa...
Primary Drive Chain Roller https://www.rockymountainatvmc.com/pa...
Alba Nerf Bars
Alba Gas Cap

Chapters
0:00-0:56 Intro
0:57-1:40 Exhaust Unboxing
1:41-2:16 Stock Exhaust Notes
2:17-2:37 Illinois Powersports
2:38-4:19 Base Power Numbers
4:20-5:39 No Airbox Lid Numbers
5:40-7:33 Installing New Exhaust
7:34-8:59 Rossier R4 First Numbers
9:00-15:11 Fine Tuning Carburetor
15:12-18:10 Final New Numbers
18:11-21:30 First Ride Impressions
21:31-22:41 Outro

Music sourced through epidemic sound
Closing song "Murky" by Cushy

Camera Gear-
GoPro Hero 7 https://amzn.to/2MHvxVl
**Must purchase GoPro adapter to run microphone https://amzn.to/2SjdM3O
Motovlog Mic Purple Panda DISCOUNT LINK https://www.purplepandastore.com/prod...
3rd Person Filmed with Sony A6000 https://amzn.to/2XoVfWD
3rd Person Mic-Sony Zoom Microphone https://amzn.to/2Xtv6Wp
3rd Person Wind Muff- https://amzn.to/2x5Lluf
Iphone 13 Pro for Cinematics

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