JB4 Stage 2 map 2 and map 5 on stock downpipe
Is there any issues with this set up?
I recently took off my ar design catless downpipe. I am just wondering if I can run the jb4 stage 2 on map 2 or map 5 without the catless downpipe. I fill 93 octane only. Long term effects/issues?
Thanks in advance.