Anyone whose been following some of my post probably already knows this, but I currently have the ultimate racing 3" exhaust with a invidia 70mm testpipe. Is it worth getting the 3" testpipe? I'm getting retuned next month and was planning on running 110 oct since I can't find 116 and do not want to order it. Would the aem water/meth injection kit benefit me more than the 110 oct? I think I remember reading that the meth injection could be equivalent to 120 oct...

 

Subscribing, Would also like to see about the test pipe.

 

What test pipe? I got 17whp with the 70mm.

 

I have a invidia and I was wondering would it be worth it to go to a 3 inch test pipe, or if it will be sufficient to stay with the invidia i beleave its a 63 mm

 

you should check on that... my invidia is a 70mm. Do you have a 3" exhaust?

 

What size is your DP? are you going 3" to something smaller back to 3"?? That would be stupid.
Go 3" all the way back have a shop fab you up a piece.

 

yes, I have a 3 inch downpipe and 3 inch catback exhaust

 

go 3" all the way you don't want any restrictions in flow.

 

ya, I have a 70mm test pipe I am going to have to have a 3 inch test pipe made for me.

 

it would be 3" all the way back if I got the 3" test pipe.