WOW!!! Go with the Borla muffler swap!! The stock Nissan mufler is close to 3 feet long the Borla about a foot and a half so they did have to add som pipe to the system. What a difference in power, the horses are right there when I give it even a little gas! Nice sound too, not too loud not too quiet. Best purchase for me so far with the X!! The stock exhaust is so restrictive, 2 cats and that huge muffler, what a waste of power!!

I'm glad you like it!! I loved the way my X sounded... too bad I sold it 2 weeks ago.

How much did it cost you total?

It cost around $160 all together, better than $270 plus installation with a complete system.

Now I know the Kings and Queens of XOC will start their usual knit-picking so I only did this because I have 6,000 miles on my X so I do not need to call your close friends at Calmini for a whole system.I noticed a big difference in power and the sound is just right for me. Intake is next now that the X can fart, need to let her inhale.

Does adding an aftermarket muffler void the Nissan warranty?

Nope... Plus the Borla warranties their mufflers for a million miles.

I love the quality of Borla, plus they sound nice....

Has anyone tried converting to a 3" exhaust? or would I just be wasting my time and money power/sound wise?

also, will the borla dual out muffler fit in an 01 XE 4x2?

You need to keep some back pressure in the exhaust. For a V-6, 2 3/4in. pipe on a single exhaust is pretty big.

Bluztraveler is right. I spoke to the owner of a local speed shop (dynamic turbo) and he said the reason that the Xterra has so much torque, is the fact that they have a constricted exhaust system. That helps to produce the torque........

Yeah, I say keep it at 2 1/4". You're not looking for top end in a 4,000+ lb. SUV.

well, for those of you who replace your muffler, I was wondering what year of xterra you all have. I know that for 2003 xterra, it has 10 more HP than previous xterras ( from 170Hp --> 180HP). Someone told me that Nissan had different exhaust system on 2003 xterra which gives 10 more HP. So I was just wondering if I still want to replace my muffler with Borla muffler, will it still make any obvious difference????

Most of us have the year and modle under our names

The main thing you're getting is sound. You may not gain hp, but you won't lose any either. Decide if you want a louder exhaust.

Most people like the deep growl.

i have 2002 se/sc.. just installed borla pro xs muffler ($150 cnd for the muffler and $120 for the install).. sounds great.. not in your face sound, just what i wanted.. don't know if it improved anything yet, have to drive more with it.. but the way it sounds i'm very happy.
sergei

I just had the MagnaFlow muffler installed. The muffler sounds good. I really didn't notice any big change in performance, but from what I read I didn't expect much. I also keep the same exhaust tip, just to keep it looking the same. Maybe, I'll see some improvement in gas mileage.

I put a Gibson on mine. Pretty quiet, but you still get a nice throaty sound when you rev it a bit. Plus it reduces the 95% restriction of the stock muffler down to 5%. The truck is overall more responsive since the mod.

Hello everyone iam a new member here, bought my "X" one week ago today. I have some questions for you. I bought the 4x4 se/sc and I was wondering what exhaust did you get. I really want the borla one since thats all I hear about. So does anyone have a video or sound clip of one on there "X" ? Also where did you get your exhaust at? Well thanks for any info I get and iam glad to be an "X" owner now.
matt

Even if you don't get to hear a sound clip, buy the Borla. It's the best exhaust on the market and you'll love the way it sounds.

Hey where did you get yours from? Also how much was it? Was it a complete catback system?
thanks for the info
matt

Not sure if you read the rest of this thread but, I had the stock muffler removed and added a Borla muffler. I got it off of Ebay for $85. Sounds great and I noticed a difference in acceleration.

What about dual exhaust? Anyone been there - done that?

For the X? You're kidding, right?

Edit to add: Unless you're not talking about true dual exhaust, rather, you want split the main pipe and tag a "tail" off of it... *sigh* it might look cool, but it will give you exactly ZERO performance gain.

Check out www.exhaustproslinc.com

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