Just installed my UPR O/R X-pipe....OMFG!!! Wow.....

Craig Mack

Busted Buffing the Bishop
Founding Member
Mar 9, 2002
801
0
0
Lake Mary, FL
Why pay $100 to a muffler shop to install a midpipe when you can do it yourself? That was my theory anyways. It took me and my bro 5 hours, but we did it -- We put on my offroad UPR x-pipe with MIL fix.

The car stuttered on the first start, but the check engine light didn't come on. Phew. The second time it started up fine with no stuttering, and no CEL. :)

Sound - All I had was flow original 40 series welded in, and some tips. The sound at idle is louder with a much more defined burble/echo. God bless the sound at idle. When I first revved it up, I got lots of popping/rasp, but thus is to be expected with a cold engine. So me and my bro go for a drive, and the exhaust mellows out nicely. The sound is FREAKING INCREDIBLE. It has so much bark to it, it sounds like a demon from hell at WOT. There is some rasp in the mid rpm, but it's only for ~600rpm, and it's only when I give it 80%+ throttle. In all other circumstances, no rasp. On cold starts it will be a bit raspy, but who cares, the car is cold. :shrug: Anyways, I had my bro revv it, and OMFG it sounds 10 times meaner. It has an awesome bark to it....it's everything I wanted it to be. It sounds soo intimidating and ferocious, with a nice echo'ed burble when the revvs sink. There was rasp when revved on a cold start, but once the engine warmed up, there wasn't any rasp....but we did only revv to 2900rpm (night time in neighborhood) but it was still LOUD and MEAN.

Power: The car revvs a bit freer, that I did notice. The car pulls a little harder, especially past 5000rpm. I did notice the power increase. Hopefully I will notice more once the ECU adjusts. (if it even does) Cobras haul @ss! :flag:

So anyways, overall I am EXTREMELY pleased with my purchase. Theres also something about installing it yourself that gives you a sense of pride. I ruined a shirt though, well worth it though. I payed $139 via their hotline and it got here the day after I ordered! The guy was nice too, I recommend them highly. The pipe fit nicely, almost like a glove. It was kind of a tight squeeze, but that's expected from any aftermarket pipe. There were no fitment problems though, we just had to wiggle the pipes a bit.

I am very happy I went with this X-pipe, it's everything I hoped it would be, and I highly recommend it to anyone who is debating which X over an Hpipe.
 
  • Sponsors (?)


How did the upr fit? Im thinking about getting one. Did you say it took you 5 hours? why so long was there difficulty. i can install mine in less than 30 minutes but i guess that is because i have a lift
 
glad it worked out for you other than the shirt :D .
The rasp will tone down with miles, in fact i was really skeptical with my o/r X, and longtube combo for a few miles, but now the sound gives me an eargasm. You may consider changing to straight through mufflers now, like my Magnaflows to make the most of your new X. :drool:
 
RED98Z28 said:
How did the upr fit? Im thinking about getting one. Did you say it took you 5 hours? why so long was there difficulty. i can install mine in less than 30 minutes but i guess that is because i have a lift


It fit fine. You have to wiggle it around a bit, but it fits just fine, no fitment issues. had to lift the car on two jacks, so there was like less then a foot of working space under the car, very tight squeeze. That along with basic tools at weird angles....but everything is basic and straight forward.

It has an awesome snarling sound. At low RPM it sounds like a dragon getting adjetated (sp?), and like a dragon screaming at WOT. It is pure intimidation.
 
98BLKHRSE said:
i have the same pipe too and love the sound. UPR rocks!!! Have you had any problems with the SES light coming back on even after reseting the computer and using MIL eliminators.


I haven't reset anything. All I did was install the MIL eliminators, and started up the car, and no light. Everything seems to be running 100% fine off the get-go.
 
Craig Mack said:
When I first revved it up, I got lots of popping/rasp, but thus is to be expected with a cold engine.

On cold starts it will be a bit raspy, but who cares, the car is cold. :shrug:

There was rasp when revved on a cold start, but once the engine warmed up, there wasn't any rasp....


So...any rasp when the car is cold? :rolleyes:
 
StngStr said:
So...any rasp when the car is cold? :rolleyes:

:lol: :notnice: :p


Well, today was the day after the install, the day for "sobering up" from the awesomeness of the new pipe, and to assess the problems...

1)My check engine light came on, just like 98BLKHRSE said. I installed the two MIL peices just as instructed. I connected them to the rear o2 sensors. I hooked them up properly, hooking each in the middle of the clips, just like instructed. So what gives? :shrug: Also, I seem to be getting worse gas mileage, which could be related to the CEL trip.

2)The rasp. It seems worse then yesterday. Whenever I get on it, in 1st-3rd gear, I get nasty rasp. It doesn't matter what RPM either, it rasps everywhere 2000rpm+. But when I put the car in nuetral and revv it, there is only a LITTLE bit of rasp at 3500rpm, but overall theres really none while being revved. The rasp sounds like a metallic rattling/vibration. I theorize it could be the metal washers that came with the pipe, that was used in bolting the pipes together, which could be vibrating against the metal pipe or something. I like a little rasp, which is part of the reason I went with the X, but in some instances it gets out of hand. Aside from the rasp, the sound is really awesome, it gives an awesome angry howl that I haven't heard on any other car. Would wrapping the pipe in header wrap help anything? Any other thoughts?
 
Jason2000GT said:
Can you make some sounds clips?

I am wondering if my MaganPack would be too much for an offroad X.....


I have no digicam or anything. My dad is getting one for Xmas, i'll be using it alot for car clips then, but nothing now. I am pretty sure your magnapacks are straight through, so the rasp won't be magnified like it is with the flows. Overall I am very impressed with the sound, I love it, it's just that rasp that raises my eyebrow.
 
I have near the same exhaust setup as you but with a VRS X-pipe and flowmaster american thunder catback. Yes it is a little raspy at times, but that is the nature of chambered mufflers and X-pipes. For me personally I live with it just because the car sounds so sick when its screaming at WOT.