running catless DPs without a tune?

[Raflekt]

Hello amigos,

I will receive my CP E catless DPs so my questions are

For the moment I dont hv a tune I was running jb3 but I had some trouble for the moment with that

Are the hp gains less without it?

Tnx in advance

[JohnL135I]

Originally Posted by Raflekt

Hello amigos,

I will receive my CP E catless DPs so my questions are

For the moment I dont hv a tune I was running jb3 but I had some trouble for the moment with that

Are the hp gains less without it?

Tnx in advance

Your HP gains will be less without the JB3. However, the car will run better at stock boost levels with the Catless DP's. Obviously, the more boost you run, the more HP benefit you will get with the Catless DP's.

[Raflekt]

Tnx John so i ll wait for my jb3 repaired or the new CP e standback

[Eyeman]

I'm not running a tune and I noticed substantially improved turbo response when I added an axleback and even more when I added catless dps. I have no idea how much hp etc was gained but it's definitely noticeable. Combined with an intake it feels like my car is very freely breathing and really wants to go. I get all sorts of varied turbo spooling sounds. I must warn you that I do get some vibration/rumbling. I plan to post more about this right now in a separate post.

[Raflekt]

Originally Posted by Eyeman

I'm not running a tune and I noticed substantially improved turbo response when I added an axleback and even more when I added catless dps. I have no idea how much hp etc was gained but it's definitely noticeable. Combined with an intake it feels like my car is very freely breathing and really wants to go. I get all sorts of varied turbo spooling sounds. I must warn you that I do get some vibration/rumbling. I plan to post more about this right now in a separate post.

What downpipes are you running?

Tnx for the info!

[TunedM2C]

OT but what happened with the JB3? You should def. step up to v1.3 as it is much better than v1.2. As for the dp's, I would go catless even without a tune since it does indeed free up the exhaust quite a bit more allowing for more hp/trq out of the engine.

[Raflekt]

Originally Posted by Tuned1

OT but what happened with the JB3? You should def. step up to v1.3 as it is much better than v1.2. As for the dp's, I would go catless even without a tune since it does indeed free up the exhaust quite a bit more allowing for more hp/trq out of the engine.

The problem is that when I installed my jb3 I chose map 2 or 4 but I cant make any WOT my car flash a half engine icon so I have to restart the engine and drive normal to the shop , the installation, map selection was ok according to my 50 emails with Terry , v1.3 was impossible the car start leaving a lot of black smoke and long starts so we took it off and send it to his office to check

My car its running ok I had gone to 3 trackdays and nothing wrong

[Eyeman]

I have the AR design downpipes, catless with ceramic coating with the MadDad axleback.

If you track the car, downpipes are definitely worth it, even if you do pick up a little vibration at idle.

[InlineSix]

Originally Posted by Raflekt

The problem is that when I installed my jb3 I chose map 2 or 4 but I cant make any WOT my car flash a half engine icon so I have to restart the engine and drive normal to the shop , the installation, map selection was ok according to my 50 emails with Terry , v1.3 was impossible the car start leaving a lot of black smoke and long starts so we took it off and send it to his office to check

My car its running ok I had gone to 3 trackdays and nothing wrong

Hey Raflekt, so what happend? was it simply learning the new tune and resolved it self after some driving?