what is a good size collecter for my d16y8...i have a 2.38" invidia cat back...and a j racing intake...stock cat, and thats it...im lookin for a header and i have an offer for 125 shipped for a neuspeed header...collecter is just under 2"...id rather 2.25" header but is 2" to small or what...should i go for 2.25"...i know old d-series dc sport headers were 2" but now they r 2.2.5 right...idk i just wanna know what is a good collecter size...AND if the neuspeed header is a good header?

 

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