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SP2 headers on SP1 - Help.

15K views 41 replies 7 participants last post by  sbkdrew  
#1 ·
Newbie here, I know this has been asked a few times but I still can't find an answer.
I picked up a SP1 and the guy who sold it to me also spare SP2 headers and pipes.
The SP1 pipes are pretty rashed up and would like to switch over to the SP2 pipes. I need to use the SP2 headers to use the Sp2 pipes.

I've managed to put the rear SP2 exhaust link on but cant put on the front bit of the headers. If I put front bit of the headers I can't put on the rear,combined they dont work together. WTF how can I solve this?

I've read that people mill the flange but I can't see what needs to be milled.

I've read this topic (on speedzilla and this forum) on the differences between the SP1 and SP2 headers but not answering my issue.

Any help?:grin2:
 
#36 ·
It happens that I have a full Akrapovic exhaust but lost the two exhaust port flanges (or never bought them). Now that I'm trying to put my backup RC51 back to street, I could really use the missing flanges. Any chance you could sell me the port flanges from the SP1 aftermarket (Akrapovic) header? I'm just starting a search to buy the needed parts now but I'm guessing they will be hard to find as they are a number of years past end of manufacturing.

- Kent Larson from Minnesota