They would actually be either 9.5 square or 8.5 front, 10 rear. But my friend has talked me out of them since they are low pressure cats so not as strong. I will probably save up and wait to see if this is just an impulse thing and if not, maybe get the Rays Gramslite 57xtreme. Or I might put my money into headers if z1 ever gets the HR flange on and we het some good reviews/dynos.
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Works Emotion CR Ultimate - FI CBE w/ 18" resonators - Ecutek - eibach sways - Quaife - FI LTH w/race cats - kw v3 - spl - Topgunz SC - 488whp 398trq
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