RV6 True Dual Exhaust for '04-'08 TL. Accepting deposits now
Everytime I was under my car changing oil I would look at my exhaust. I always knew it was possible to do a dual setup. I also remember looking at the V3 j-pipe and thinking that it looked like half an x-pipe. I guess I was right. This is truely a revolutionary exhaust product for the TL. Even for transverse mounted engine layouts I have never seen anything like this before.
Here are some tip designs that I wouldn't mind seeing on Base exhaust. For the record I do not like the burnt titanium look.


Something like this, but more like what I drew below it. It's kinda like the tips from the new 2009 TL SH-AWD.

Here are some tip designs that I wouldn't mind seeing on Base exhaust. For the record I do not like the burnt titanium look.
Something like this, but more like what I drew below it. It's kinda like the tips from the new 2009 TL SH-AWD.
Ok I have been staring at this thread all day and I have some questions. Especially about the claims of 36whp and 40torque gained with Jpipe and exhaust.
According to both dyno runs the stock car put down 172 torque and 189hp. With just the exhaust it put down 187torque and 209hp a gain of 15tq and 20hp respectively. But with both the exhaust and j pipe it looks like the car is putting down 191tq and 205hp. Correct?
The difference between the stock car (172Tq and 189hp) and the car with both the j pipe and exhaust (191tq and 205hp) is 19tq and 16hp. Is this an issue of averages? and if so how do you calculate the average? I guess I was always under the assumption that when dealing with dyno numbers you looked at peak.
Where are you getting the 36whp and 40tq? I’m just confused and want to clear this up.
According to both dyno runs the stock car put down 172 torque and 189hp. With just the exhaust it put down 187torque and 209hp a gain of 15tq and 20hp respectively. But with both the exhaust and j pipe it looks like the car is putting down 191tq and 205hp. Correct?
The difference between the stock car (172Tq and 189hp) and the car with both the j pipe and exhaust (191tq and 205hp) is 19tq and 16hp. Is this an issue of averages? and if so how do you calculate the average? I guess I was always under the assumption that when dealing with dyno numbers you looked at peak.
Where are you getting the 36whp and 40tq? I’m just confused and want to clear this up.
Last edited by mnrsxs; Jul 19, 2010 at 03:44 PM.
All i can say is wow!!! ive been holding out on Cat-back for a while now and im glad that i did. i think that this is the one for me, especially with those nice HP and TQ gains, it would go nicely with my RV6 PCD and Jpipe v2. only thing i dont like is the tips. those titanium burnt tips would look like pure sex on my wdp. i think im going to put down my deposit but i hope the tip design changes.
Joined: Feb 2008
Posts: 4,096
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From: Scarborough, Ontario
- Pre Data: Horsepower 250.3 Hp at 6250 rev/min. Torque 222.4 Tq at 5000 rev/min.
- Post Data: Horsepower 261.4 Hp at 6250 rev/min. Torque 231.9 Tq at 5000 rev/min.
- Post Data: Horsepower 261.4 Hp at 6250 rev/min. Torque 231.9 Tq at 5000 rev/min.
But, even still---you can see that Richie's set up yields more gains.
Joined: Aug 2008
Posts: 1,303
Likes: 133
From: New Windsor, NY
Ok I have been staring at this thread all day and I have some questions. Especially about the claims of 36whp and 40torque gained with Jpipe and exhaust.
According to both dyno runs the stock car put down 172 torque and 189hp. With just the exhaust it put down 187torque and 209hp a gain of 15tq and 20hp respectively. But with both the exhaust and j pipe it looks like the car is putting down 191tq and 205hp. Correct?
The difference between the stock car (172Tq and 189hp) and the car with both the j pipe and exhaust (191tq and 205hp) is 19tq and 16hp. Is this an issue of averages? and if so how do you calculate the average? I guess I was always under the assumption that when dealing with dyno numbers you looked at peak.
Where are you getting the 36whp and 40tq? I’m just confused and want to clear this up.
According to both dyno runs the stock car put down 172 torque and 189hp. With just the exhaust it put down 187torque and 209hp a gain of 15tq and 20hp respectively. But with both the exhaust and j pipe it looks like the car is putting down 191tq and 205hp. Correct?
The difference between the stock car (172Tq and 189hp) and the car with both the j pipe and exhaust (191tq and 205hp) is 19tq and 16hp. Is this an issue of averages? and if so how do you calculate the average? I guess I was always under the assumption that when dealing with dyno numbers you looked at peak.
Where are you getting the 36whp and 40tq? I’m just confused and want to clear this up.
If you could do the tips from Terry along with a combo sale price with the J-Pipe, I'd be all over this.
Damn, I told myself no further mods after the A-spec kit until next summer, but this is unreal.
Damn, I told myself no further mods after the A-spec kit until next summer, but this is unreal.
? for Richie V6...Will the final system be more modular? As in welding in a flange just before or after the resonator? I ask because if you're shipping the whole thing together won't it have to be shipped as freight because it's so big?
Exhaust is to free air out. If u have 2 stright pipes coming out, without anything to whole it back like the X pipe or the cat... Wouldn't that be a better exhaust flow? Gains would be much higher? I might not understand how that X pipe works or what it does but to my understanding if u have 2 stright pipes coming out, I believe that would be a true dual exhaust.
Correct me if I am wrong.
Technically, this isn't a "true dual" in the TRUE sense
but many other companies have sold similar catback designs with an X pipe and labeled it as a true dual exhaust.
With a NA TL and running straight pipes, a) it probably won't sound that great and will be raspy for sure, b) you'll lose a ton of low end torque, which is what most people use on a daily basis.
Now, if your car was boosted, then you'd be correct and would want to push the exhaust gases out the fastest way possible.
but many other companies have sold similar catback designs with an X pipe and labeled it as a true dual exhaust.With a NA TL and running straight pipes, a) it probably won't sound that great and will be raspy for sure, b) you'll lose a ton of low end torque, which is what most people use on a daily basis.
Now, if your car was boosted, then you'd be correct and would want to push the exhaust gases out the fastest way possible.
Technically, this isn't a "true dual" in the TRUE sense
but many other companies have sold similar catback designs with an X pipe and labeled it as a true dual exhaust.
With a NA TL and running straight pipes, a) it probably won't sound that great and will be raspy for sure, b) you'll lose a ton of low end torque, which is what most people use on a daily basis.
Now, if your car was boosted, then you'd be correct and would want to push the exhaust gases out the fastest way possible.
but many other companies have sold similar catback designs with an X pipe and labeled it as a true dual exhaust.With a NA TL and running straight pipes, a) it probably won't sound that great and will be raspy for sure, b) you'll lose a ton of low end torque, which is what most people use on a daily basis.
Now, if your car was boosted, then you'd be correct and would want to push the exhaust gases out the fastest way possible.
What if we make 2 stright, 1 cat and 2 back?
I'm just confused on the X since it reminds me of our stock J.. (2 going into 1)
94 DC4 RS LSV/Turbo
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From: New York City | Stuck in Traffic
I guess I'd be another one to possibly commit after seeing what tip options the base system will have...
Though the tipless option would be convenient for those of us who want to add our own touch to it!
Might have to take advantage of that lay away plan as a nice christmas gift to myself!
Though the tipless option would be convenient for those of us who want to add our own touch to it!
Might have to take advantage of that lay away plan as a nice christmas gift to myself!
.
I actually tried this on my 03 Coupe. The section between the 3rd cat and resonator is too long. I believe it will fit just find with a section removed. I will try this on my car after the first batch gets in.
We are using slipfits with O-bands. There will be one connection after the resonator and one to each muffler.
You can always upgrade.
We can talk about deals after the first batch gets in. Of course I will give my customers a discount if they buy more items. We have some high flow precats coming out as well.
Not sure about Cali this system removes a cat.
You can always upgrade.
Not sure about Cali this system removes a cat.
So Rich, can you make this happen
4.5" tips (like the greddy) would be PERFECT!!!
Peak HP numbers are great for "paper racing". "My peak is bigger than yours."
But real world racing requires a broad powerband. The car with the highest average HP thru the driving range (approx 4000 to 6500 for the 5AT) will be quicker.
I looked closer after your reply. I found it now (quoted above). I was so excited and was speed reading thru this thread this morning. I don't know how I overlooked this thread for the past two days.
This thread did get me a bit








