Exhaust help

3 1/2 exhaust I basicolly did the same thing with two summit 3 1/2 turndowns

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To be honest i found your picture when i started and wanted to replicate the best i can but i still am having trouble. My welds arent the best but i figure this is the first time im doing this and i do find it a little difficult. Noone makes a piece like this i believe and the only other route i have thought of is make multiple pie cuts. Also how low does your pipes hang? i want best possible clearance but seems like they still hang a little low. any tips or advice?