[FLA 335]

Originally Posted by Mike@N54Tuning.com

If you want to compare just pop the GIAC off in your garage and put the JB3 2.0 on for a few days.

Mike

Mike, i'd like to take you up on the deal but the problem is that i dont want to pay to have the GIAC removed and put back on...

championship motorsports charges 1 hr labor each way...

but they did great work and excellent customer service, they pick up the car, complete the paper work and drop off the car before it is time for you to go home... you just sign the dotted line and drive home like nothing ever happened...

Victor @ Championship Motorpsorts...

[Kelvin1000]

I think Mike was being a little sarcastic... :-)

[jaza45]

hey Im up for comparison, kelvin and I live within 30 min from each other so maybe somebody else that has not try any of these tunes can give an independent opinion...

[Kelvin1000]

I am down as always...

[tom @ eas]

Originally Posted by Kelvin1000

Hey Tom,

Will GIAC allow me to get Stage two if I have the original exhaust but with the secondary cats removed?

Thanks

Absolutely, we have the stock catback with secondary cats in our dyno sheets.

[Alpina_B3_Lux]

Originally Posted by tom @ eas

Absolutely, we have the stock catback with secondary cats in our dyno sheets.

Tom, any idea about an ETA for the stage 2?

Alpina_B3_Lux

[Kelvin1000]

What do you mean Tom? They told me no stage 2 with original exhaust and secondary cats still in place (even if I have catless downpipes).

Are you saying that it's ok with stock exhaust as long as secondary cats are removed???

Thanks for your help!

[tom @ eas]

Originally Posted by Alpina_B3_Lux

Tom, any idea about an ETA for the stage 2?

Alpina_B3_Lux

GIAC is just putting the final touches on the tune, we're very close to a release.

Originally Posted by Kelvin1000

What do you mean Tom? They told me no stage 2 with original exhaust and secondary cats still in place (even if I have catless downpipes).

Are you saying that it's ok with stock exhaust as long as secondary cats are removed???

Thanks for your help!

We recently swapped the stock catback on our 135 project to a 3.5" straight-through exhaust equipped with only a race muffler and found 0 changes on the dyno, results are in post #33 of this thread with a build sheet of what specific parts were involved in reaching those numbers.

There are a number of possibilities why this is, we're exploring those options now. The biggest restrictions are found within the stock downpipes/FMIC.

[Hit_Apex]

Originally Posted by FLA 335

Fact is fact, so if it is true i will not deny it, but until now i havent seen jb3 with the same smoothness as GIAC is all...

Been testing JB3 2.0 for a few weeks now. The latest evolution has all of the record breaking power under the curve that you expect from the JB3 coupled with stock-like smoothness. It's great to see all of these products for the N54 reach the apex of refinement. Hardware is the next frontier but that is moving painfully slow..

[NRG]

Originally Posted by tom @ eas

GIAC is just putting the final touches on the tune, we're very close to a release.



We recently swapped the stock catback on our 135 project to a 3.5" straight-through exhaust equipped with only a race muffler and found 0 changes on the dyno, results are in post #33 of this thread with a build sheet of what specific parts were involved in reaching those numbers.

There are a number of possibilities why this is, we're exploring those options now. The biggest restrictions are found within the stock downpipes/FMIC.

Tom what about intakes, at those boost levels S2 must benefit from a DCI? Is it required, or their biggest concern is IC/DPs?

[tom @ eas]

Originally Posted by NRG

Tom what about intakes, at those boost levels S2 must benefit from a DCI? Is it required, or their biggest concern is IC/DPs?

These engines will always benefit with a DCI, but FMIC/DPs are a much larger concern.

[Kelvin1000]

Originally Posted by tom @ eas

GIAC is just putting the final touches on the tune, we're very close to a release.



We recently swapped the stock catback on our 135 project to a 3.5" straight-through exhaust equipped with only a race muffler and found 0 changes on the dyno, results are in post #33 of this thread with a build sheet of what specific parts were involved in reaching those numbers.

There are a number of possibilities why this is, we're exploring those options now. The biggest restrictions are found within the stock downpipes/FMIC.

I agree but GIAC seems to be hellbent in NO STAGE 2 unless I upgrade my Exhaust.

It would be a lot cheaper to keep the stock exhaust and just remove the secondary cats... I am wondering if this would be acceptable to them?

You should try to convince them to not make this a requirement for Stage 2 if at all possible.

Either way, do you think that the stock exhaust with no secondary cats will be ok???

[enrita]

Originally Posted by Kelvin1000

I agree but GIAC seems to be hellbent in NO STAGE 2 unless I upgrade my Exhaust.

It would be a lot cheaper to keep the stock exhaust and just remove the secondary cats... I am wondering if this would be acceptable to them?

You should try to convince them to not make this a requirement for Stage 2 if at all possible.

Either way, do you think that the stock exhaust with no secondary cats will be ok???

do you have catless downpipes? if yes i guess you are good to go with stock secondary cats in place. You just need to wait for the flash to be released.

[Kelvin1000]

I have DCIs, Helix FMIC and Riss Racing Catless Downpipes but a stock exhaust with secondary cats in place. GIAC will not let me have Stage 2.

I am asking If it would be OK to leave the stock exhaust but delete the secondary cats.

I need to know if that configuration is acceptable to GIAC for stage 2???

[enrita]

yeah thats cool. as long as you are catless or have 1 set of HFC you are fine. I got Stage 2 with my stock secondary in place. I then went catless a bit later.

[Mr. 5]

Originally Posted by Kelvin1000

I have DCIs, Helix FMIC and Riss Racing Catless Downpipes but a stock exhaust with secondary cats in place. GIAC will not let me have Stage 2.

I am asking If it would be OK to leave the stock exhaust but delete the secondary cats.

I need to know if that configuration is acceptable to GIAC for stage 2???

Remember though that Stage 2 hasn't been oficially released yet.
Maybe this is the reason you aren't getting it.

[Kelvin1000]

I spoke directly to them and they would have sent the file until they found out that I still had my secondary cats in place... Just trying to see if stock exhaust without the secondary cats is acceptable to them...

[brianGriffin17]

GIAC would not send stage 2 beta to me either due to my stock secondary cats

I already have AMS FMIC, AR Catted DP and Bastuck Exhaust. The secondary cats are too restrictive for stage 2.

[Alpina_B3_Lux]

Originally Posted by enrita

yeah thats cool. as long as you are catless or have 1 set of HFC you are fine. I got Stage 2 with my stock secondary in place. I then went catless a bit later.

One of the reasons I just switched to catless DPs and secondary 100 cell race cats. GIAC 2+ here I come!

Just have to get that f****** HPFP problem checked out and solved before I get the new flash.

Alpina_B3_Lux

[vase330]

Originally Posted by Kelvin1000

I spoke directly to them and they would have sent the file until they found out that I still had my secondary cats in place... Just trying to see if stock exhaust without the secondary cats is acceptable to them...

They are doing that for your and their best interests. They don't want you to have any adverse effects from having restrictive exhaust. From a business owner perspective, even if you don't care, they have to worry that a problem develops, and they get a bad press, and that hurts them more than if they didn't sell you the tune in the first place. Just bite the bullet and get a proper exhaust even you want the extra Oooomph. Isn't your car already fast enough Kelvin?

[tom @ eas]

Originally Posted by brianGriffin17

GIAC would not send stage 2 beta to me either due to my stock secondary cats

I already have AMS FMIC, AR Catted DP and Bastuck Exhaust. The secondary cats are too restrictive for stage 2.

Originally Posted by vase330

They are doing that for your and their best interests. They don't want you to have any adverse effects from having restrictive exhaust. From a business owner perspective, even if you don't care, they have to worry that a problem develops, and they get a bad press, and that hurts them more than if they didn't sell you the tune in the first place. Just bite the bullet and get a proper exhaust even you want the extra Oooomph. Isn't your car already fast enough Kelvin?

Remember S2 is still in beta, so it also depends when you last spoke with GIAC as information constantly changes as development moves forward.

A real world example in this case is S2 testing that has been performed on our project 135 and Fred's Evolution Racewerks 135. Both vehicles are similar, with the exception that we are using catless downpipes and the ER 135 project is using the ER system with HFCs.

Here's a dyno of the ER project for those unfamiliar:





Specs:
-Evolution Racewerks competition intercooler kit
-Evolution Racewerks downpipes
-Evolution Racewerks exhaust system with aftermarket cats
-Injen Intake System
-Blow off valve
-Snow Performance methanol injection Kit
-GIAC Beta Stage 2 flash

Turbos and engine components (head/block) are completely stock.

Just keep in mind that info can periodically change until testing is complete.

[enrita]

Originally Posted by brianGriffin17

GIAC would not send stage 2 beta to me either due to my stock secondary cats

I already have AMS FMIC, AR Catted DP and Bastuck Exhaust. The secondary cats are too restrictive for stage 2.

yeah but you have catted dps. thats why.
As i said before you need to be either catless or have only 1 set of high flow cats.