After replacing my deteriorating precats with a low mileage used pair, I decided to also replace the original main catalytic converter. With 164,000 miles on it, I figured there has to be at least some restriction in it by now-and based on the amount of light that I was able to pass through it using a pretty powerful LED light, there was definitely some internal clogging.

The consensus on the board seems to be the Warpspeed test pipe is the one to get. My only reservation was that some people have complained of increased "rasp" with test pipes but it seemed most had either headers, aftermarket y-pipes or cat back exhausts. Wasn't sure what changes I'd hear with an otherwise stock exhaust.

At idle, my car is still very quiet, maybe a touch more sound. Zero rasp, no drone, really very little change from stock. If you have a stock exhaust and want to keep it quiet, the Warpspeed test pipe is probably going to make you happy with the lack of increased noise. In addition, in higher mileage cars, you are probably going to see a small performance gain as well, due to the mileage on the original catalytic converter. Best of all, since only the precats are monitored, no SES light either. Apparently, both Nissan and the EPA agree that the precats effectively scrub enough pollution from the exhaust that the main cat doesn't need to be monitored for performance.

Yes, my car is running when the video starts, that's how quiet it still is!

http://www.youtube.com/watch?v=OKR5QpYq_Yw

 

how much for the test pipe.. sounds nicee

 

$45 shipped. Has new gaskets, nuts and bolts and it fits perfectly.

 

yea that is quiet, sounds good

 

Sounds good, ill definately look into that once I have to replace my cat. Thanks for the clip

 

WOW !!! sounds good. seems like the site is down... i was tryna to get one

 

Thanks for the info., I think the most interesting thing is that it didn't throw any codes.

 

You can call them and tell them to put a listing on ebay for it. I did that so I can use my paypal account.

 

Was it used? Thats a really good deal. Their website costs alot more.

 

I didn't hear anything unpleasant, so... success!

Actually, I barely heard anything at all until mid-video. I know you spend a lot of time during the day driving that car, so I understand why you'd want to keep noise to a reasonable level. Personally, I like a deep, intimidating rumble, but I also understand how that can get weary after a while.

Nice ride, Scott.

 

any improvements in top end?

im looking to get one as well, where did u order from?

 

Would codes be thrown on an 00-01?

Anyone have this test pipe with a y-pipe as well?

 

Hm I think I'm gonna buy 1 of those for the 5.5. Thanx for the review.

 

No, it was new. I got the aluminized one, not the stainless steel. No road salt here, my OEM exhaust still looks great so no need to pay more for the stainless steel one. You need to call them to order it.

RochesterI do a lot of freeway driving and a constant drone at those speeds gets old real fast. Plus you get the surprise factor with a quiet car.

hotstartup-I did the VIAS block plate the day before the test pipe, so it is hard to say for sure what improvement is from each but my car feels noticeably stronger at freeway speeds.

Nexus67-my guess would be if you have an O2 sensor behind the main cat, then you'd get an SES light if you swap it out for a test tube.

 

thanks scott im gonna go ahead and order one as well.

 

Well i just got off the phone with dallas and he said hes gona try to list it on his ebay site today ...

 

ebay doesnt show any listings for warpspeed test pipes. scott did you get it off ebay?

 

I called Warpspeed and ordered it.

866-801-9338 M-F 9:00 AM to 5:00 PM CST

 

I miss the quietness of a nice stockish exhaust. I miss being able to rev up to redline and still hear almost nothing from the muffler.

 

Are you being sarcastic, or for real? I suppose there would be some kind of smily if you were kidding.

You know, I read your comment this morning, before I left for work, and there was a part of me that thought, "Yeah, my car is really loud, too." Maybe too much so, at times.

But then when I pulled into the office park, and pushed 2nd gear hard into the winding, uphill roadway, I thought, "That throaty exhaust is pure sex!"

I don't miss the stock exhaust at all.

 

Me neither. Never did.