No offense, but the conventional wisdom is that the G-Tech is junk.

That said, with exhaust only dyno's show ~10 - 12 WHP gained. Add a J-pipe to that and another ~10 - 12 WHP gained.

No exhaust with J-Pipe, I'd guess ~1/2 the gains. Just a guess.

For maximum impact you need both. And I don't think it matters which one; choose what you like for finish, cost, design, etc.

 

My understanding is that the G-tech may not be accurate compared to numbers generated by an actual dyno, but is fairly accurate in demonstrating changes run to run with the same device in the same vehicle. That being said:

1/4 mile stock 15.21 @

 

Sorry for the too-quick reply above.

1/4 mile stock 15.21 @ 94.68 mph 0-60: 6.71
ATLP J-pipe 15.12 @ 95.06 mph 0-60: 6.60

 

I scraped up my atlp, bent it a little and it is still fine, no leakage or anything....

 

it seems like everyone has several different answers, since the rv6 is tucked in, and probably produces the same hp, I think that would be the most ideal.

 

Interesting results. I assume the 0.10 s difference is reproducible with different jumps and all that. All in all, I think all three are almost the same. The xlr8 and atlp have the y design. It should be more efficient that the rv6 version (similar to stock). I suspect that they are very close though.

For me, it will come down to how cheap do I feel like being on that day, if I buy it.

 

According to RV6's site their j-pipe produced 5 whp and 7 ft lbs of tq. According to ATLP's website their j-pipe produced 7 whp and 14 ft lbs of tq. The XLR8 J-pipe produced 8 whp and 16 ft lbs of tq.

The j-pipes are not the same. I can't speak for anyone else b/c I'm not sure on the specs but the XLR8 j-pipe is made with T304 stainless steel and it is 100% stainless steel. It is an equal length j-pipe with a 2.5" collector to provide maximum flow. Yes, it sits lower but we did that in order not to sacrifice hp. The XLR8 j-pipe is also manufactured in the USA and we used the highest quality components.

 

Does XLR8 j pipe sit the same level as stock? Or it is tucked in a bit than the stock?

 

I think you are talking about RV6 j pipe, correct?

 

No it sits slightly lower.

 

But not more than the ATLP? Or about the same.

 

Hmm i like XLR8, and ALTP most. The RV-6 ppl had problems with exhuast leaking, that caused the hissing. If ur car is lowerd go for XLR8, if it isn't lowerd go for ALTP//

 

Which one do you have?



Or is you only mod still "All Weather Floor Mats"?

 

I'm sitting on Eibach Pro kit, so its a little more than 1" drop.

RV6 j pipe is the one that I need more info with hissing problems and sh!t.

 

Last night I took the car for some fun, otherwise it just sits in the garage till the winter is over.

I was on second gear boosting up to 6500rpm and I heard "boom"sound from the rear mufflers. Could that be indication of an exhaust restriction? The only mode I have is the mid muffler delete.

 

The hissing problem was a small batch of faulty flex pipes from what I've read. Richie has since taken care of this and done right with the people that were affected. I don't have the RV6 pipe so I'm not biased towards it. Just don't feel it's right for people to read your post and get the wrong impression. Hope this clears things up a little.

 

It will sit about the same. It's right about the level of the subframe.

 

+1. It was just a small batch. Everything has now been rectified.

 

Did I read correct that XLR8 has the most power in terms of HP?

 

haha

+1
yeah all are a get product cant go wrong .. but if you dnt wanna mess up the j pipe bc your car is lowered good with rv6 j pipe or if you want the most power go with excel?

 

I WANT BOTH, most power and I dont want my jpipe messed up....I think the more power outweighs the scratched jpipe.... xlr8 it is hahaha

 

Does the Rv6 j-pipe really produce almost half the torque as the others?

 

Well not really less less but yes, it does produce less torque.

 

look how sexy

 

in the summer time i scrape my j pipe every day. its so bad im gona have to replace it soon. i got an ATLP

 

^go with richie v6 j pipe

 

+1, fu*k it, when it has to be replced so be it.

 

atlp is good a well, but rv6 offers better combo prices

 

looks like the J pipe made babies

 

^haha so funny peed in my pants

 

Just to let you know those numbers you are quoting dyno are from automatic Accord dynos. The Accord has a smaller 3.0 engine and a transmission with more drivetrain loss. I am pretty sure the ATLP and XLR8 dynos were done on TLs with manual transmissions. Quoting those numbers is simply misleading. I have yet to do any testing on the TL but I plan on having dynos done when it gets a little warmer.

See above ^

 

As jweb12 said the hissing with only on a small batch of jpipes. The problem was solved ASAP at my expense.

 

Yeah the hissing sound i had it on my ATLP also almost right from the start, when I finally got the rest of the exhaust in(did J-pipe first) I saw this inside my flex tube WTF! But mike is taking care of it is exchanging it for me.... More pics in my album section.

 

I was told by a person at work that a J-Pipe is illegal in IL. ??? WTF. Is this true?

I have no idea.

 

There is probably some vague law that states any aftermarket exhaust modifications is illegal. But, Midas, ect is considered aftermarket, and they operate just fine. Nothing to worry about. There isn't even a cat in the J-pipe.

 

Are those #'s your quoting strictly from the J-pipe? Or were there other mods installed on the test cars? That is very mis-leading. I planned to purchase either the XLR8 or the ALTP soon. However, my choice could be swayed toward the ALTP because of inaccurate #'s I feel are to sway people to buy your products. You have been very good to me in the past, just want a clarification on those #'s... thanks Josh

You have a drop, correct?

 

That will DEFinitely make a difference - ALL in all I think its great what you guys have done. A to all of your for bringing us new mods for the J series.

 

The car ships with a J-Pipe (Acura calls it an "A-Pipe" or "Pipe A"), so how can having one be illegal?


It's either the "all exahaust modifications are illegal" or a misunderstanding thinking you are messing with the Catalytic Converters (which I *think* is a Federal Offense).




1 WHP and 2 Ft-Lbs is not enough to matter. It's noise/clutter; Repeat the dyno's and the numbers could swap they are so close. A dyno is not repeatable enough to differentiate 1WHP.

Make your decision based on other factors: Credibility, Build Style and Quality, Cost, Personal Preference, etc.

 

The dyno we posted was on an A/T TL-S but the base TL dyno showed similar numbers. I simply quoted the numbers off your website; there was no intention of misleading ppl.

Yes those are the dyno gains from the XLR8 j-pipe only.

 

So you quoted numbers from 3 different cars with 3 different engines..........

RV6 3.0L Automatic Accord
ATLP 3.2L Manual TL Base
XLR8 3.5L Automatic TL Type-s