hi there...at last after 4 ours installing my catback.. i went to a highway to test my car..and before this i felt more HP with my y pipe and intake...but now!!!! man!! my car feels like beast, really guys i didnt know how powerful can be the automatics with this setup.

I really recommend this setup its the best invest for my car.(im waiting weekend to install my und pulley, maybe my car will feel more hp.

 

congrats on your new setup, how loud does your apexi WS sound with the y-pipe?

 

honestly is a little loud but you forget it when you feel the power on wheels. I saw a lot of threads before order the catback..and this has deep sound and best if you compare with obx, hks, etc

 

i cant wait to go to track again and see the times

 

Cool ! .......

 

I've got the same setup except its a custom 2.5" catback and i about **** my pants. My next mod is also UDP.

 

Man I need a y-pipe! I have the 2.5 inch custom exhaust and I really don't feel the whole gain part. I'd imagine I need the y-pipe to really feel the love, right?!

 

yep the y pipe make the diff, on this mods....

 

i dont know if i should get a a catback cause i got a y pipe and a cai, i dont want it to be that loud

 

just use your stock resonator combined with a somewhat quiet muffler, take it to a shop and have them fabricate the cat-back for you. I did this and it's not too loud at all.

 

I have the apexi catback and budget y. When I installed the apexi then the y, I found that the sound went up considerably.
The apexi by itself sounded awesome. When the y was installed with the apexi the sound that came out of the exhaust sounded more farty than like a beast. I really didn't like the sound at first but didn't care after the fact the y-pipe would kick my car into warpspeed when I drove.

 

yea, heard a couple sound files of the WS and it didnt sound amazing... i like the OBX sound more, but the 2.25 inch piping is too small IMO

 

i like the obx sound more to. The WS from my experience is to buzzy and not really deep.

SXN: We finally agree on something buddy