wow it sounds sweet!! do you have the down pipe installed also? how much is the whole system? did you feel a power difference?

 

very nice

 

What's being used to tune the car? A TBE without a tune isn't always a good thing.

 

^ that was going to be my next question...is tuning required for the exhaust. IM really interested in the down pipe mostly.

 

Yes I have the down pipe, test pipe and catback installed.

I would say yes, there is a positive difference in low end performance. That's the butt dyno talking at this time. I certainly notice that spool up time has shortened, and once moving the boost is almost an instantaneous, direct correlation of your right foot throttle position.

I only got to play with the car this afternoon. Its going back the shop tomorrow morning for additional fabrication. ( intake, UICP, LICP, ect. ) After that time parts are heading to production and the car is going to the tuner.

Tuning is always a part of an install with this many components being added / developed.

Sorry for the crappy vids / pics. They don't do the exhaust justice nor capture the experience. Even in the testing phase it is one solid piece of equipment. It looks and sounds sexy, serious and perfect.

Almost forgot, No CEL.

 

In the example of a Ralliart - the car would benefit from a tune running on completely stock components - without any modifications what so ever.

Once you start adding aftermarket parts, be they less restrictive/better flowing and changing any dynamics of the vehicle - a tune would again, always be beneficial. Just like - technically and ideally - you would want to adjust DTC/AWD settings when you change your suspension components to improve/modify the dynamics of the vehicle - wether or not its outright necessary or possible is another question.

There is a certain tolerance within a vehicle before there is a necessity for a tune for it to operate at a higher/optimal performance.

The TBE is a component that can do without a tune and still be a large improvement, yet as any modification or even just stock - it can be improved upon with a tune. Depends on ones mindset, plans, roadmap for the vehicle and goals.

Properly designed parts should yeild considerable performance increases, while being within spec of sensor/electronic requirements of the vehicle - therefore not hindering existing stock maps and allowing the vehicle to perform better without throwing off thresholds and configurations.
At which point, yet again, as with any modification - the part upgrade might do better with a tune, yet its not outright an immediate necessity for generating power.

 

It depends entirely on the car. As a clear example, the Evo performs alright without a TBE while the STI can crap out because of overboost issues. With the way modern vehicles work, it's nearly impossible to significantly increase power and remain within the sensors tolerance range.

 

I called and talked to 4 top vendors on Evom today and the they all said the exact same thing.

1. A DP and catback does not require a tune to achieve a noticeable gain.
2. All put the gains in the exact same ball park of 10 - 18 Hp gain +-2.
3. All agreed that you would see more with a tune.
4. All suggested that a tune should come after any other planned mods.

An exhaust is the most common and probably the most warranty safe option you can have. Are we to say that we dont need reputable vendors to develope these parts since they do not make significant gains?

To knock such efforts hurts EvoM's vendors which in turn hurts their ability to develop the more costly parts / mods that acheive more significant gains. I believe that most Evom members realize we need these incremental steps to A. fund development and B. maximize the end significant gains of these developments when its time to tune.

Ill keep you posted on the next incremental developement.

 

Again, it depends on the specific car. Older evos can and did run TBEs without a tune and didn't experience any serious. They weren't making big power but they gained a bit. If you do the same on an STI however, you can get overboost issues. So far we don't know what happens with the Ralliart. A tune is a good idea anyways since you can't fully take advantage of the increased with the stock maps. It's worth spending the extra 200$ for a tune if you're already going to be spending 1000$ on the exhaust. More in line with what I said earlier, modern cars are not the mod friendly dinosaurs of the past, manufacturer's aren't stupid and they know people will try to mod certain cars. They've gotten smart to this and now have quite complex systems to reduce the ability of a bolt-on part to produce power.

 

Then maybe you should police the top 2 vendors product descriptions posted on their websites and give them a piece of your mind.

 

Or I could just suggest that people act like informed and critical consumers rather than mindless sheep.

 

It's not worth it to spend $200 on a tune just for an exhaust. If you feel it's necessary by all means drop your money. And what mod friendly dinosaurs of the past? So picking up 50whp on the RA and 100+whp on the Evo with 2-3 mods w/o check engine lights etc. isn't mod friendly?

 

Then obviously your in the wrong thread, again.

 

elpoole, did cp-e say what mufflers they are going to use for the exhuast? Did they mention who would be manufacturing the components for them, or is all the manufacturing being done in house?

 

Really? So an extra 40-50 WTQ isn't worth it? You'll notice that the 50 whp was with a tune not a collection of bolt-ons. The cars I was referring to are things like older Supras, Skylines, Civics, etc. Nowadays tuning is absolutely the key.