Would a 3inch midpipe and muffler be to much for n/a hr z? Would i still get the same amount of gains that a 2.5 get? or the difference is so small for example 1 or 3 horses.

 

56 views? and one cares to answer me.

 

yes no maybe so?

 

Why don't you get dynos before and after and let us know.

 

Oh thats a good idea. So i can find out if i wasted my money or not.

 

LOL. I think hks is either 2.5 or 2.25, and the greddy evo tt is a 3 inch. You will lose power with the greddy evo tt n/a, but get some gains with the hks n/a. Since the hks has a smaller piping than the evo tt, you can conclude going bigger than 2.5 on n/a will lose power. Btw, there are many threads comparing the evo tt and hks, and the evo tt will cause you to lose power if n/a.

 

All depends on if ther OP is asking about single of dual exhaust, where you jumped the gun expecting it to be dual.

 

Never seen this question before!

 

Yes you are correct, forgot about the single exhaust. I believe agency power is 3inch pipe with 4.5 muffler and has 9whp gains.

 

wow every answer in this thread couldnt b more WRONG. Search

 

except this 1

 

well that went well. To many different answers. Thanks.

 

If you want a legit answer. I recommend asking Hydrazine.
https://my350z.com/forum/members/43383-hydrazine.html
PM him. He knows everything about exhausts, with dyno proven facts about tubing diameter. Good luck!