Looks to be time to change them out, so Im running a ZZ4 engine with cylinder heads that use a "D" exhaust port, but using 1 5/8" headers what looks to use an oval port... would it be best to try and use "D" port or go with oval port exhaust gaskets?
Having no idea what headers came already installed when i got the car, no markings anywhere, so after going by the header flange design and the layout of the header tubes, i came across "Southwest Speed" 1 5/8" long tube ceramic coated headers(#440-2258) that lQQk to be a perfect match for what i've got, if you can actually see the similarities as well.
Having no idea what headers came already installed when i got the car, no markings anywhere, so after going by the header flange design and the layout of the header tubes, i came across "Southwest Speed" 1 5/8" long tube ceramic coated headers(#440-2258) that lQQk to be a perfect match for what i've got, if you can actually see the similarities as well.