TRX90 MANIFOLD INTAKE PIPE +5MM BIGGER ID OVER STOCK APPROX 25MM ID (S1071)
 
This has a 48mm bolt pattern for the carburetor.
 
And a 46mm pattern to bolt to the head
 
THIS SHOULD WORK GREAT ON THE TRX90'S AS IT IS NEARLY 
 
IDENTICAL TO THE STOCK MANIFOLD,, EXCEPT WAY BIGGER ID !!
 
WITH this manifold you can still use the stock air-box if you want to ON THE TRX90
 
THIS WILL ALSO WORK GREAT FOR C70 PASSPORTS WITH BIGGER CARBS!!
 
This is about three and a half inches tall, and when bolted up.  It faces directly backwards or directly forewords.  You may need the 12 position adapter OUR PART # 290J , if you're going to be using this with a ct70 style frame.  We haven't tried it yet on an XR 50 type frame.