I currently have 2 tsudo n1 exhaust systems for different cars. Im planning to take them to a muffler shop to have them fixed to be able to fit my s2000. My question is should i only do 1 at 45 degree angle or 2 at a 45 degree angle on each side or both of them coming straight out the back??

 

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Straight out the back would be different. You would want to change the lower valence I would think.