I’m definitely getting a y-pipe, then I’ll have about 200 dollars left.
The question is; Should I get a udp or cat?
From what I’ve researched the udp will free up more horses than
The cat will provide, but do you lose out on any of the horsepower increases of having an aftermarket y-pipe because you don’t replace the other exhaust components?
Much Thanks

97 Maxima

 

The y-pipe and exhaust go together. Like pigs in a blanket.

 

Better get the cat.

 

If you don't have it, get a RSB instead.
Also, do you have an intake? If not get that.

What mods do you have?

 

Y-pipe + catback = more hp

Y-pipe + udp = almost same hp as y pipe

Once again UDP does not ADD horsepower... it just FREES up hp.

 

Every mod FREES up HP, only thing that adds HP is boost........

 

The cat doesn't really add that much, the y and udp combo should do better. The install of the udp is more difficult, though. I have the y and cat, and I really didn't notice the cat.

 

The cat just quiets things down worth maybe 1 or 2 hp. I mean, if you have the $$$ and want a complete high-flow exhaust, by all means go for it. Otherwise, get the pulley.

 

if you don't have an intake then get one - you need an intake with a y-pipe or you're throwing your money away. then worry about cat + exhaust. Also your need for a cat depends on the number of miles on your car alone. don't expect more than 2-5 HP from any cat-back exhaust

 

 

thats not what dynos say... either way, i thought he was asking about a catback exhaust... my bad

if u r thinking between the convertor and the udp... definitely the udp. and as theblue said, get an intake

 

FSTB and stillen intake

 

UDP is SOOO much more worthwhile than the cat...I have one and I love it...of the mods that I have...it's on of the three that you can actually FEEL....including y-pipe and NOS.

 

Would you recommend the UDP more than the RSB though?
Cost are about the same, but install on the RSB is really easy.

UDP may be worth the money, but would you get this before the RSB?