5/16-18 to 5/16-24 X 1-11/16" long.
Zinc plated studs with chrome plated nuts. Mounts exhaust to cylinder heads.
Note: Exhaust studs as used in the M8 engine (OEM 10900015) are of a slightly different design, with a small protruding hex-shaped outer-end to aid initial stud-installation, but these early Evo/Twin Cam style studs will still fit.
Fitment : 84-22 B.T.; 86-22 XL; 08-12(NU)XR1200; 87-10(NU)Buell XB
When fitting, insert and start threading by hand. Then tighten securely.
IMPORTANT NOTICE – D-Star Racewear and Customs / Messrs Johnson accept no responsibility for any mechanical issues that your vehicle whilst using a custom exhaust.
With the correct fitment and fuel tuning (if you have an fp3 please see the product info for setup) these will operate to perfect conditions.
It is your responsibility to ensure your bike is road legal at all times and all parts meet local laws.
Vehicles should be have all parts and bolts checked after the first 50 miles of use, then every 100-150 miles after to ensure everything is fastened correctly and in good operational order.