Committee) NA8 Downpipe
#37566 from Spec Mazda (SM/SMX · Recommended to the Board · Minutes (2025-02 Fastrack)
In GCR Section 9.1.7.1.l, change as follows:
"3. 1.8L (1994-1997): A bead of weld or braze may be added to the outside of the exhaust manifold inlet and outlet mounting
flanges for the purposes of repair only. No material may be removed. No coatings are permitted on the exterior or interior of the
manifold. Heat wraps may not be used.
(Effective Date 3/1/25) 4. 1.8L (1994-1997): The exhaust downpipe internal factory welds may be ground from the interior of the
OEM exhaust manifold downpipe up to 1” from the mounting surfaces of the exhaust manifold and the exhaust system. A bead of
weld or braze may be added to the outside of the downpipe inlet and outlet mounting flanges for the purposes of repair only. No
coatings are permitted on the exterior or interior of the downpipe. Heat wraps may not be used."