Well I still have my originals to clean up and reuse if necessary.
Anyhoo, I took the new units to the bat cave and attacked them for a few hours. First I figured out the internal diameter feck up from the manufacturer. Basically the inlet is 63mm as required, and the inner diameter at the output end is about 61mm, as it happens a perfect fit for the exhaust pipe. Unfortunately this is made up of 2 separate tubes and at the join in the middle is 48mm, which is a bit dumb.
So I separated the tubes to achieve a 61/63mm diameter the length of the part.
Then of course I found my schoolboy error, my 20i has the exhaust flap mechanism so the length of the muffler tip is limited. More cutting/grinding/filing and riveting and I got to this:
They do protrude a little further than original and I probably have room for some further improvement, but I like the carbon theme so not a complete waste.
I could always slide the carbon tubes over the BMW tips and use JB weld.... nah, too easy and tacky :lol:
Anyhoo, I took the new units to the bat cave and attacked them for a few hours. First I figured out the internal diameter feck up from the manufacturer. Basically the inlet is 63mm as required, and the inner diameter at the output end is about 61mm, as it happens a perfect fit for the exhaust pipe. Unfortunately this is made up of 2 separate tubes and at the join in the middle is 48mm, which is a bit dumb.
So I separated the tubes to achieve a 61/63mm diameter the length of the part.
Then of course I found my schoolboy error, my 20i has the exhaust flap mechanism so the length of the muffler tip is limited. More cutting/grinding/filing and riveting and I got to this:
They do protrude a little further than original and I probably have room for some further improvement, but I like the carbon theme so not a complete waste.
I could always slide the carbon tubes over the BMW tips and use JB weld.... nah, too easy and tacky :lol: