RV6 2012+ Civic Si Bellmouth Downpipe

[V_Kam]

It would be a 3 years at least before I went s/c or turbo. Maybe this rv6 combo would make more sense with the full race exhaust then, instead of the full race down pipe If I want n/a performance. What do you guys think?
Prob do a skunk2 manifold too if one comes out..

 

[boejoula]

The difference between a 3" and 2.5" n/a is about 5 HP. If you wanna go f/I you will need 3"

 

[boejoula]

Ok so I installed the full-race exhaust today. Bolted right up to my rv-6 dp!

 

[V_Kam]

Good to know! Did you have to use a flange or additional piece? I figure a proper tune could make a difference, if I go with a 3" dp. Hmmm...what to do..what to do.

 

[boejoula]

No extra parts needed. Full race said I would have to order a 2.5 inch adapter but that's not the case. A big noticeable difference in torque and power as soon as I drove it. Vit has been in the process of tuning my car so when he is finished I plan on getting it on the dyno. Ill will post the results to my build thread, where you can see all of the stuff I have done.

 

[webby]

great to hear

 

[spdandpwr]

I can't wait to get my dp

 

[TuanSi]

I can't wait to get my dp

That's what she said!

 

[V_Kam]

That's what she said!

HAYOOO!!!!

 

[wesellcarparts]

As of today, WSCP carries RV6! We will be adding their down pipe to our site shortly.


Thanks all!


Dan

 

[V_Kam]

Think I'm leaning more toward the rv6 now. Since I cant see myself doing any kind of forced induction anytime soon.
I found some good info on exhaust flow(back pressure), check the link if your researching. I found it helpful...

http://genesisforums.org/hyundai-genesis-coupe-performance/7146-back-pressure-needed.html

 

[wesellcarparts]

Selling well for us already. RV6 makes great products!

 

[MakoSi12]

To be cleared we used a Dyno Dynamics AKA a heatbreaker dyno. On our baseline we only made 152WHP, while the Dynojet made 172.5WHP that's a difference of 12.63%

On a Dynojet I would expect our numbers to be closer to.

13.3 * 1.1263 = 14.98WHP (Dynojet Corrected)
11.5 * 1.1263 = 12.93WHP (Dynojet Corrected)

Without FI or heavily built motor a 3" exhaust will most likely hurt you on low and mid range powder. 3 inch exhausts are great for paper racing but I will take low end power any day.

How much difference in the catless and the high cell cat of ur guys, in power and its 2.5in right

 

[webby]

I don't think anyone would know...unless rv6 did a dyno on each setup.

 

[MakoSi12]

I kind of want to guess 5hp less then their catless but it still leaves higher then s2 3in alpha

 

[corey99699]

I read somewhere maybe 1-3 hp.

 

[xXBob RossXx]

^ lmao

 

[corey99699]

Why is that funny?

 

[XdemonicfleasX]

I had the catless rv 6 and loved it. It would occasionally throw a cel, then it would go away, then come back.

 

[corey99699]

For those asking,and for xXBob RossXx who seemed to think my post about the difference between the catted and catless version was funny,here's a quote from RV6 after being asked in the other forum

"I would estimate the catted version having 1-3WHP less since due to the minor restriction. We are using a 200 cell race cat which is just enough to keep things tame. A major portion of the gains come from replacing the highly restrictive stampings of the precat with a smooth casting and tube. If you look closely at the OE precat you can see the inlet of the precat doesn't even line up."