if i put an aftermarket Y-pipe with my stock muffler will get any hp? and will it change the sound of the exhaust any?

 

sound yes, hp??

 

stock exhaust+aftermarket y = big low end power loss, very little top end gain

 

uh, why would it be a low end power loss?

 

that's crap info....

 

I would suggest cat-delete or high-flow cats first. The stock cats are very restrictive.

 

Just wondering where he got it from...weird.

 

there is hardly any noticeable loss of low end torque whatsoever cuz i got the stillen y-pipe with oem exhaust. In fact, huge noticeable gain at over 4k rpm...there is no comparison between the stock and the stillen y-pipe. The sound is amazingly smooth and sweet...one of the better bang for the buck.
i compared the oem and the stillen y-pipe side by side on the floor, getting rid of the stocker was a no brainer.

 

So you did notice a loss of low end torque?

 

nah....negative..i also got the UR underdrive pulley...makes some difference you bet.

 

save some money...just go to the wrecking yard and buy a set of used oem cats ...take it home and drill through the damn thing. You got yourself some inexpensive high flow cats then.

 

Also cut your springs to lower your car as well.

 

If a quality aftermarket y-pipe is less restrictive than the OEM pipe, then yes, it will be louder.

 

+11111

 

Note to self: add member to ignore list.

 

How does the exhaust sound with Y-pipe, high-flows and stock exhaust?

 

i wouldn't recommend cutting the springs for various reasons though.... i consider that as mutilating the Z, not a good idea.

 

it sounds a little less subtle than stock.....it won't draw any unnecessary attention to yourself or the law for sure.

 

I was being a samrtas$ about Ztalker's comment... I would never cut my springs.

 

Looks like you have to becareful with the sarcasm...