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Old 24-01-2023, 01:37 PM   #21
900Rebuilder
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Join Date: Sep 2022
Location: Beeston
Bike: M900
Posts: 295
Quote:
Originally Posted by Darren69 View Post
Shorter exhaust tend to rob torque esp. from a v twin. Which is why Termi full systems have all those spaghetti manifolds to maintain and improve gas flow using negative pressure created by the other cylinder. And it works 10% more torque/power on an S4 with nothing more than the exhaust. You can feel the torque come onto the pipe in a similar way to 2 stroke expansion chambers.
I've opted for Silmotor 45mm headers on my 900 as I am hoping for the same or similar results to what you have described coupled with 2/3 length open cans, open top airbox (mwr) and some flatslides.

Not a question on the build quality or skills on show here but those style exhausts are not for me including those which RoadRacing sold back in the day.

Interesting build
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