1 5/8" tubing featuring a true 4 into 1 merged collector. Tig welded for strength and good looks. The mounting flanges are thick. System includes black Quiet Muffler w/ Stainless Steel tip. Complete with gaskets and hardware. This is a competition system and cannot be used with heater boxes. 3263 Type 1 66-73 Upright Engines Only, 1300-1600cc.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. For more information, go to www.P65Warnings.ca.gov. All parts legal for use on pre-pollution controlled vehicles only.