Bruce Banner

iTrader: (2)

I was looking over the RV6 jpipe thread.
13 WHP peak gained
7 WTQ peak gained

15 WHP average gained
12 WTQ average gained



RV6 Jpipe + True Dual
16 WHP peak gained
19 WTQ peak gained



Does that mean performance wise, adding the RV6 Exhaust to an existing RV6 Jpipe the gains will be:
3 WHP Peak gained
12 WTQ Peak gained

What would be the averaged gained be on top of the Jpipe be like?

anx1300c

iTrader: (2)

In the end, it's all ricer math. With around 769 variables you won't know for sure unless you buy the stuff and dyno it.

Bruce Banner

iTrader: (2)

Well if the gains are minimal, then $/hp, might be a better option to swap out other stuff like pcats.

sauceja

iTrader: (2)

Possibly. The $/hp is high for exhaust.

But it sounds so damn sweet. I have not compared to ATLP or other brands but the RV6 jpipe and TDE is pure sex.
I would personally not go with PCD's but if the HFPC's were cheaper I would be all over them.

If you want cheap exhaust mods then you can do the stage removals as found on here. At least start there and see if you like it? Then drop coin on a system.

I am a firm believer in replacing the factory J-pipe is important. Have been that way since the 98 Accord came out with the 3.0 V6. Pretty sure they are using the same design still. Horrible bends and crushed pipe.

But best way is to side by side comparison on the dyno unfortunately.

anx1300c

iTrader: (2)

Dollar for dollar, that's the smart move, since most of the untapped power sits between the heads and third cat. Stock cat back is relatively efficient. Any of the readily available aftermarket cat backs don't offer big bang for the buck, power wise, but they do sound good. I'd guess most of them are good for maybe 5-8 whp.

PowerSergNY

Sorry, I am new to the TL world and mods, I recently did my mid muffler delete and love the sound, like eveyone says it has that G35 growl. I am really thinking about replacing my J-Pipe. Dont really have the $ to do the whole system, what do you guys think? looking to add horse power, I know its a heavy car so not looking to race, just do some things to it. thanks for your time!

Bruce Banner

iTrader: (2)

The other thing I am contemplating is, if the performance gains between ATLP, XLR8 and RV6 is minimal, I guess decision making would be more based on what it sounds like and price.
The RV6 is very well built and of course sounds different, but the ATLP is also a favorite with a deeper sound and could be purchased used since it's been around longer.

I agree with the previous comment, swap out the pcats for higher flow.

I kinda just noticed the numbers
13 WHP peak gained
7 WTQ peak gained

15 WHP average gained
12 WTQ average gained

Are those backwards? How can avg be higher than peak?

350

iTrader: (4)

Bigger midrange gain than top end gain. If could average 15HP gain from say 3-5K and then be slightly less above that. A lot of exhaust mods shift the powerband without adding to it.

i_love_cars

iTrader: (1)

^^ this.

The catback kit is not going to net you crazy HP numbers, when you compare the cost of PCD's at 400 bucks to an exhaust kit for 1200-1400, the PCD's will net you more power, lol. That's a biiiiig $/hp difference.

That being said, I have the ATLP v2 quads, and I had to wait like 5 months to get them, but the sound alone was worth it. Partially because I had existing mods, but the exhaust note is just crazy sex. My buddy laments that his M3 will never sound anywhere near as nice (due to being an inline 6), and stands by his statement that I have the best-sounding exhaust setup for a v6 he's ever heard.

I have heard videos of the RV6 TDE and it sounds amazing - I am sure it is every bit as awesome-sounding in person as my ATLP system.

It's expensive but honestly I've never had a mod that was so much worth the wait as my catback system for this car.

The sound is just....utterly intoxicating. So factor that in if you're thinking about getting the TDE.

For reference, I assume the TDE would outperform my V2 quads on a dyno, but I can tell you that with just aem intake, HFPC's, v3 j-pipe, and atlp quads I was able to put down roughly 30 whp over what my car does stock. So I would account the vast majority of those gains to all of the exhaust mods. The numbers are impressive for what exhaust mods can cumulatively gain you on this car.

anionrings

iTrader: (2)

^a bit off topic but...sound clip of ur exhaust note please?

brianch

I think it is safe to say that if power is your concern the true dual isn't a good bang for your buck.

The precats and jpipe offer more.

With that said..

What do you think the gains are of a PCD vs a HFPC.

losiglow

iTrader: (1)

This has been discussed a few times in the past. No solid numbers that I'm aware of since no one has swapped the two out and run dyno's between different setups. Most seem to theorize around 3-5hp or less.

brianch

Ahhh alright thanks. And sorry but what are the range of gains for just removing the PCDs usually?

losiglow

iTrader: (1)

Not sure what you're asking. Removing the PCD's? Do you mean replacing the cats with PCD's? If replacing primary cats with PCD's I want to say something like 9-13hp or so. 1-2hp less with HFPC's.

I went with HFPC's because Utah does a smog check which I couldn't pass with PCD's. I passed just fine this month when I had my check with RV6 HFPC's installed. Also, I'm a bit of a hippy at heart. 1-2hp difference isn't worth the environmental impack IMO. Not that I judge those with PCD's. Personal decision really. The TL is a pretty clean burning car to start with.

brianch

Yes sorry I meant replacing the primary converters with the deletes. Wasn't checking what I typed. Ahh ok. Good to know. I'm personally going to go with HFPCs. Just wanted to know what the gain differences were (not that it mattered too much) I don't like how loud it is with the PCDs and I also need to pass smog/emissions.

losiglow

iTrader: (1)

That's another advantage; the HFPC's muffle the exhaust a bit better, which is probably the reason for the couple of hp difference.

I'm very happy with mine. I highly recommend them. I'm a TL diet whore so the 8lb. difference in weight between the stock cats and HFPC's was also a plus

anx1300c

iTrader: (2)

Did you weigh them? I was just trying to remember if I did or not. I don't think I did, but I remember holding a stock cat in one hand and an RV6 in the other and guessing it was a good 3-4 lb difference.

DomGSR-T

iTrader: (1)

Well if it was a real TRUE dual... the gain would be good. But no plug and play true dual exhaust are available as of now... I have a custom true dual and still using the oem mufflers and I got a real good gain out of it (12whp). And for the PCD vs HFPC the gain would be different from a base TL to a Type-S as the oem cats are not the same...

brianch

Are the type s cats more restrictive?

Is the RV6 exhaust no considered true dual?

DomGSR-T

iTrader: (1)

No the Type-S are less restrictive 600 cell vs 900 cell for base model. And for the RV6, it has a bottleneck where it merges instead of an real X-pipe.

Bruce Banner

iTrader: (2)

Wouldn't an ATLP catback produce pretty much to similar performance results at a lower price?

losiglow

iTrader: (1)

Yes, I measured them. With heat shields included with the stock cats, there's about a 4lb difference each (8lbs total between the two).