Cargraphic Headers. Whose got em?
01-12-2017, 09:40 AM
#422
Originally Posted by Beantown Kman
CarAholic-- Get a tune! As I've said previously, I was very surprised to see the difference the tune made. You will be pleasantly surprised. Money well spent.
01-12-2017, 09:48 AM
#423
Rennlist Member
Dealer can see if the DME has been overwritten with the current COBB software for the GT4, but for other models can't.
They allude to big things happening for the GT4 in 2017, so I hope that is on their list to change.
They allude to big things happening for the GT4 in 2017, so I hope that is on their list to change.
01-12-2017, 09:53 AM
#424
+1 on this...I also hold out a long time with headers and exhaust only before doing the Tune. It did make a big difference, very happy with it. Mine was a custom map using a local COBB ProTuner.
01-12-2017, 09:57 AM
#425
Former Vendor
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Well I installed my headers that came in today. First off I hate that Porsche didn't put studs in the block as I was nervous the whole time of cross threading the block. Install was really simple though one bolt wouldn't go in for the life of me. Going to go to a friends shop and put her on a lift for better access.
Installation = simple anyone with relative background in working on cars can complete this. Easiest header installation I have done other then civics.
Power:
I cant tell a huge bump in power, not like a strapped a turbo to this thing at all. It did however smooth out the power band. There is no longer that giant kick in the *** at 5k instead it's just a constant pull to red line. I haven't had a whole lot of time to really drive her but so far I am very happy. CEL light kicked on after 20 miles, not sure if the ecu adapts timing for this but so far haven't felt a drop in power.
Quality:
Very nice craftsmanship with high quality materials. Absolutely no complaints here. Every bolt logged directly up and no modifications were necessary.
Sound:
Now others have commented on this but I will give my description of it. It is absolutely stock sound levels from 3.5k and under, zero drone. Even cold start is barely any louder then factory. However once you put the pedal to the floor it sounds like space time is being chainsawed wide open. It's a very porsche race car high pitch sound, almost Ferrari ish. The videos online do not do it justice. I truthfully can't tell the difference between exhaust flaps open or closed, she may be a hair louder under light throttle application with it on. Very pleased with the sound. For reference I had a straight pipe exhaust from the headers back prior to this.
Price:
I think the price is fair especially during the group buy. I however feel that for this expense gaskets and hardware should be included.
Conclusion
Overall I am very pleased with my purchase and look forward to seeing if there are any adaptations that will take place over the next 100 miles to increase performance even more. Now I am really wanting to get a tune to see how big of a difference the combination makes.
I will break down my plus and minus for each set up below.
Stock Headers w/ Straight Pipes
Pros
1. Large increase in overrun
2. Nice and deep bassy exhaust note (V8ish)
3. Cheap
4. No CEL
Cons
1. Non Adjustable Sound levels
2. Power decrease (torque) very slight but noticeable
3. Had some annoying drone, not horrible but it was there
4. Impossible to leave the house without waking the neighbors
Caragraphics race headers w/ stock PSE
Pros
1. Flattening of power curve
2. Slight bump in overall power
3. Easy install
4. Very slight increase in daily driver and cold start sound levels
5. No drone
6. High pitch race car tone
7. Still have sound adjustability
Cons:
1. Price (relative to comparison)
2. Small increase in overrun
3. CEL
Installation = simple anyone with relative background in working on cars can complete this. Easiest header installation I have done other then civics.
Power:
I cant tell a huge bump in power, not like a strapped a turbo to this thing at all. It did however smooth out the power band. There is no longer that giant kick in the *** at 5k instead it's just a constant pull to red line. I haven't had a whole lot of time to really drive her but so far I am very happy. CEL light kicked on after 20 miles, not sure if the ecu adapts timing for this but so far haven't felt a drop in power.
Quality:
Very nice craftsmanship with high quality materials. Absolutely no complaints here. Every bolt logged directly up and no modifications were necessary.
Sound:
Now others have commented on this but I will give my description of it. It is absolutely stock sound levels from 3.5k and under, zero drone. Even cold start is barely any louder then factory. However once you put the pedal to the floor it sounds like space time is being chainsawed wide open. It's a very porsche race car high pitch sound, almost Ferrari ish. The videos online do not do it justice. I truthfully can't tell the difference between exhaust flaps open or closed, she may be a hair louder under light throttle application with it on. Very pleased with the sound. For reference I had a straight pipe exhaust from the headers back prior to this.
Price:
I think the price is fair especially during the group buy. I however feel that for this expense gaskets and hardware should be included.
Conclusion
Overall I am very pleased with my purchase and look forward to seeing if there are any adaptations that will take place over the next 100 miles to increase performance even more. Now I am really wanting to get a tune to see how big of a difference the combination makes.
I will break down my plus and minus for each set up below.
Stock Headers w/ Straight Pipes
Pros
1. Large increase in overrun
2. Nice and deep bassy exhaust note (V8ish)
3. Cheap
4. No CEL
Cons
1. Non Adjustable Sound levels
2. Power decrease (torque) very slight but noticeable
3. Had some annoying drone, not horrible but it was there
4. Impossible to leave the house without waking the neighbors
Caragraphics race headers w/ stock PSE
Pros
1. Flattening of power curve
2. Slight bump in overall power
3. Easy install
4. Very slight increase in daily driver and cold start sound levels
5. No drone
6. High pitch race car tone
7. Still have sound adjustability
Cons:
1. Price (relative to comparison)
2. Small increase in overrun
3. CEL
We really enjoy reading realistic and candid reviews like this.
A proper tune will definitely help smoothen the power band even further and open the top end more as well.
01-12-2017, 10:01 AM
#426
Originally Posted by Alex@PE
Great review and glad the headers went to a good home!
We really enjoy reading realistic and candid reviews like this.
A proper tune will definitely help smoothen the power band even further and open the top end more as well.
We really enjoy reading realistic and candid reviews like this.
A proper tune will definitely help smoothen the power band even further and open the top end more as well.
01-12-2017, 12:29 PM
#427
Burning Brakes
I am using a Cobb pro tune. I installed CG sport headers, TB and plenum all at once. I drove the car for a while and then got the tune. The nice thing about Cobb is they provide a device with which you can flash the ECU back to stock, or flash it with a different tune (i.e., for different octane fuels). One day a couple of months ago I decided to flash the car back to stock just to see how much of a difference it makes. I was shocked at how anemic the car felt without the tune. The tuner, who has tuned several GT4's, told me the original tune on the ECU is very sensitive and will pull timing back at the slightest hint of detonation. The custom tune is a lot more aggressive and you can really tell the difference.
01-12-2017, 06:43 PM
#428
I am using a Cobb pro tune. I installed CG sport headers, TB and plenum all at once. I drove the car for a while and then got the tune. The nice thing about Cobb is they provide a device with which you can flash the ECU back to stock, or flash it with a different tune (i.e., for different octane fuels). One day a couple of months ago I decided to flash the car back to stock just to see how much of a difference it makes. I was shocked at how anemic the car felt without the tune. The tuner, who has tuned several GT4's, told me the original tune on the ECU is very sensitive and will pull timing back at the slightest hint of detonation. The custom tune is a lot more aggressive and you can really tell the difference.
01-12-2017, 09:27 PM
#429
Burning Brakes
With all due respect, I think it's a matter of perspective. The stock tune on the car is very conservative. And COBB provides tunes for different octanes.
01-13-2017, 02:44 AM
#430
I clearly can't quantify how conservative the OEM tune is, but I'd be really curious (no sarcasm) to hear an explanation of why a revised knock sensor calibration or algorithm would be "safe enough" while Porsche feels otherwise. It makes sense to me that eliminating smog concerns as a programming constraint could net useful power if you don't care about emissions. Reliability vs. power is a different trade-off, however. Maybe I need to talk to Cobb.
01-13-2017, 09:51 AM
#431
Rennlist Member
Like Beantown Kman notes, Porsche's tune has to be able to run safely with any octane, COBB has an individual tune for each octane so COBB can optimize for each.
Just make sure you stick with the octane that you programmed for and you'll be fine, or use the 91 octane tune if you use 93 to be extra safe.
Just make sure you stick with the octane that you programmed for and you'll be fine, or use the 91 octane tune if you use 93 to be extra safe.
01-19-2017, 05:36 PM
#432
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Afternoon Rennlisters. Just wanted to update the thread with the status of the group buy. Huge thanks to everyone who took advantage of the opportunity! Cargraphic is estimating that the first batch of manifolds is due to ship in around 2-3 weeks time, with the remainder shipped within 4-5. Keep in mind guys, this was a much larger than normal order, so it does take some time to run these through production. I will check back and update everyone with their placement on the priority list from Cargraphic, as far as when manifolds will ship.
As of the beginning of the year, Cargraphic did have a slight increase on pricing for both race and street manifolds as follows;
987.2 Race - MSRP $2414.50 (plus shipping)
987.2 Sport - MSRP $3294.50 (plus shipping)
981 Race - MSRP $2524.50 (plus shipping)
981 Sport - MSRP $3294.50 (plus shipping)
Luckily we were able to get the group buy pricing secured before the price increase! As always, we do what we can to help out our Rennlist customers, so please email or PM us for pricing.
Wray
As of the beginning of the year, Cargraphic did have a slight increase on pricing for both race and street manifolds as follows;
987.2 Race - MSRP $2414.50 (plus shipping)
987.2 Sport - MSRP $3294.50 (plus shipping)
981 Race - MSRP $2524.50 (plus shipping)
981 Sport - MSRP $3294.50 (plus shipping)
Luckily we were able to get the group buy pricing secured before the price increase! As always, we do what we can to help out our Rennlist customers, so please email or PM us for pricing.
Wray
01-28-2017, 07:49 PM
#435
