Ok guys i am aware some of you here have the diffrent j pipe on your vehicles. My question is which one is best bang for the money. I have read where the atlp pretty much keeps power from low end til high and this is what i want .

Both pipes i have seen look well made. Atlp and ecxlr8. Just curious bout your input.....

 

There are 3 currently out. RV6, ATLP and XLR8. From what I understand, RV6 tucks up under the most so it has the best clearance. The XLR8 has equal length pipes, the ATLP is about .5" off. Not sure in the length difference in the RV6. Anyone please correct me if I'm wrong.

 

They'll all do the same thing. ATLP might hang a little lower though.

 

I agree on the clearance. I'm not dropped.. yet .. but as of now clearance not an issue. Looking mostly for performance and wanna keep my low end torque. I know a few here have tried all three, just looking for input.

 

I am doing the RV6 J-Shift J-Pipe and Test pipe Combo. You save about $50 when you order the combo.

 

OK, all three do the same this (well about) one is cheaper yet made from Billy Boat. Well known for power boat stuff. And the 3 are all SS. I own the XLR8. It's fit and finish are top notch!! It really puts out the power! I had 2.5' SS cat back already. Also I have the E-Shift ProCats. So this was the last piece of the pie. I would buy the XLR8 again. You sould too.
No question.

 

I think there are people wpho would say the same about the ATLP pipe and the RV6 pipe too.

All good products.

Depends mostly (IMHO) on personal preference and exhaust plans.

 

I have a custom 2.5 all the way back even custom j pipe . but i dont think it has the fit and finish as one of the others. It was done by my exhaust guy and he has done a great job. But no r and d like the others. so thats all i am gonna change unless u guys convince me of the pre cat deletes too.... but that wouldnt take much....lol

Hey spirit man do u have any issues with ur pre cats at all...just wonderin. Dont want any cel issues.

 

According to his sig, he's running E-shift Pro cats. They're high flow catalytic converters, different than the pre cat deletes.. The RV6 pre cat deletes get rid of the catalytic converters entirely but trick the car into thinking they're still there so you usually don't get a CEL.

 

Now with the "J" pipe on. I get such "go fast" that like in 2nd gear. I get kinda scared. But seriously folks. I have not had any trouble with the cats at all. But I do get some funny looks from those people in my rear view mirror. Allot of the time there mouth is like hanging wide open in shock! As that black Acura speeds away from them, and they can't even catch up!!! He he

 

from my expierience atlp& rv6 are good. Cant wait to see Josh's though!!!

 

ya j shift is a popular one.

 

Is J-Shift the same as RV6? Everytime I google J-Shift, it sends me to Acurazine or to and I saw a post on here from back some time that said Richie was selling them.

 

yeah the same thing^

 

Here is how much clearence you have on the ATLP J pipe on a stock height TL S.

 

Wow I would literally scrape that thing every single day on my car..

 

I could go for one right now ^^^^^...after this god awful day at work

 

where the heck is Richie's website for ordering!?!?!

 

I'll post the website when I get home. It is not easy to find but I have a bookmark.

Anyone know which j-pipe is the quietest? I want minimal exhause noise increase.

 

i wish that was a king can

 

I have the ATLP piece, with an otherwise stock exhaust. I don't think I notice a difference in sound at all. Midrange torque, on the other hand- you can definitely feel the difference. Top end- I don't know, but from 2500-4500, there is a big wakeup.

I don't like the way the J-Shift pipe joins at the Y. Too much of an angle- that probably costs a few HP, and some of that midrange torque.

 

Where can I get one of these J-pipes? And what's the prices like? What's the best bang for the buck?

 

For some reason I can't get the editor to post it.

r-

.ecrator.com

 

You can get a j-pipe at:

http://www.heeltoeauto.com
http://www.excelerateperformance.com
http://r-.ecrater.com

 

Also here...

http://www.acuratlparts.com/

 

You can get the RV6 here
www.rv6-p.com

 

Does anyone have a dyno of Richie's jpipe? ATLP has nice gains, but I don't think I've ever seen the dyno for RV6...

 

if all the jpipes produce the same gains, but the rv6 is cheaper and doesn't sit as low, no offense to other companies but why purchase anything else? That is an actual question not being a ass...

 

Look at all three designs, and compare. They are all different. No one has specific height measurements as far as exact differences, could be very minimal. The ALTP looks like the best flowing design IMO, nice flex pipe, equal length, smooth y joint. The rv6 y joint comes together kind of funky since it has the short runner. Also a few people had a leaky flex pipe with the rv6, causing a hiss noise. I'm no expert, just my observations.

Also the individual gain from just the J pipe only are not a whole lot. Dyno conditions vary, which varies the power measurement. No one has conclusive testing between the 3, in the exact same conditions.

 

=t You guys are making me think too hard of whether to get ATLP, XLR8 or JV6 J-Pipe =[

Thinking JV6 since there's lots of speed bumps [large and small] and potholes and such... I plan to eventually lower the TL as well.

 

I put on the ATLP J pipe and got before and after numbers with my G-tech. I only got a gain of 3 HP (changes in temp and humidity factored in) - no other mods. Hope this helps.

AR

 

so then what is this claim that it gives a 10 hp gain? if this is true, might as well get the rv6 because if you lower your car you may scrape... Am I right, wrong or just stupid?

 

they are all the same, just different finishes, sizes and so on. otherwise they are identical.

 

I believe the extra gains are to be seen with an exhaust system.
The other person stated he/she had the j-pipe installed on a stock TL.

 

Top end horsepower is not the name of the game here. Midrange torque is. This is power and efficiency in the RPM range you use everyday.

 

The max torque changed from 159.0 @ 4923 to 161.2 @ 5029, and the shape of the curve is essentially unchanged. With this experience I decided to perform no other mods, as I suspect most of the claims as to performance advantage are probably often exaggerated. Trust, but verify. YMMV.

AR

 

Well, I believe that the numbers are that low because you only have the j-pipe. You stated that all else was stock. Which means that your exhaust system is still restrictive---thus holding back possible gains/potential of your j-pipe.

 

I'm looking at all 3 at the same time, and are you saying that all 3 have the same flow in term of exhaust air.

Someone here said that the ATLP has the best flow. looking at XLR8 seem to be OK too. But RV6 seems to have a restriction I think.

 

OK, here is a thought. Look at the place where the two pipes are welded together. If you will.
This is where the hot gasses from the engine meet and are mixed. One of these manufacturers pipes is a long tapered affair. That (to me) is the only way to get MAX hp. Also you will get the best mixing of the exhaust and scavenging from the other cylinder bank. All else being equal. I think and bought the only best made/engineered pipe on the market! And it's the least expensive. Look at all of the pipes and see for yourself. OK?

 

Hmm, this is rather disappointing. I was thinking about the j-pipe mod on my stock exhaust TL also. Do you think the mod was worth the $400? Any improvements in 0-60 times or quarter mile?

The only performance mod I have is the UR pulley, which made for a modest performance increase, but it was only $200.