well, working on the exhaust has been on my list for a long time...glad I waited now...anyway, when we get everything on, hopefully in May, and ready for a tune, hopefully the price doesn't go too much higher, 'cause I think this is a great deal...but the $$$$ are still gathering other mods...nice job on this Jake and the boys...we will see what May brings when ready for a tune...

 

He did buy the headers and full dual exhaust off of Bryan's car (pre-turbo), but the headers were a one a one off for his car...Until now.

 

Thanks Matt, you never know when alzhiemer's begins.....lol

 

tony you know my mods. with the exhaust mods i listed and the sl55 intake on my modded setup what can i expect with a retune from these?
i think i have the true dual figured out and it looks like a bmw m3 muffler may be finding a home soon!

 

Correct, I believe I had the first headers on the 6. I can tell you that they made a huge difference compared to the stock manifolds on the street, I haven't been able to get on the track yet.
These were carbon steel instead of the stainless steel. Needless to say Carbon Steel doesn't hold up well to a highly modified 6 and I pulled them off to send back for their review. If anyone gets carbon steel you might want to consider having them Jet Coated. I'll hopefully be able to get the Stainless steel for replacements.

Anyway, after putting the stock Exhaust manifolds back on I've noticed a huge difference in the power band. Before I could not get on "stomp" the throttle below 60mph without having the rear wheels violently break loose, I basically could spin both wheels from a dead stop for 200+ feet 1-3 gears once I got around 50 mph they would stop spinning for a second or two and break loose again until I hit around 80mph.
Now I'm spinning 1st and 2nd only and the back of the car is black (running rich as Hell).
YouTube - Crossfire SRT6 with ECU Tune
this is Tony showing me how to drive it (running a second gear pass.) he likes to show off his work!

I also noticed I've lost 1/2 a second 0-100.

hope this helps guys, I wouldn't change a thing! I edited this to include tire information rear tires are Continental Sport Track 2's 295/30 ZR 19 with about 20% tread left (slick)

 

I am not sure if I understand what you are saying here. Could you please clarify? The way I am reading it, is that after you put on a set of headers and do a dyno tune, you can expect to see 30-40 HP increase. Should we not be seeing in the neighborhood of 30whp increase with just the tune and no header? I guess what I am trying to ask, is what whp gains should we expect from the headers alone?

I would expect that most people that would be interested in these would already have a minimum of a CAI, pulley, and a tune. With this in mind, do you plan to do a before and after dyno of the headers and post the gains?

Thanks so much for all of the work you guys do.

 

Might better to speak in percentage gains VS actual HP numbers as the numbers can be different from dyno to dyno.

Just installing the headers, I would like to see around a 3%-4% increase in HP above 4K RPM. That would be around 9-14 HP for me on the dyno I used in the past as a baseline (dynojet)

Who will be the first to test...??

 

Working on it...

I have a reputable shop up here in Jersey with a dyno (dynojet I believe)...


hopefully I will be able to report happily...

I think the sound will be a bit more aggressive and round.

 

My actual numbers with the one off (test headers):

Headers w/ stock exhaust stock software - 272hp 285tq at peak but gains of 20tq on the top end of the torque band and 14hp, all gains where above 4k rpm
Headers w/ stock exhaust and Euro flash (Stage 1) - 293hp 304tq gains 35hp 20tq throught the rpm band.
I'm very happy with these results!

 

Dyno Dynamics: 348.5 HP 460 FTLBS Torque. w/ 95 temps and high humidity. This is without the 70# NOS.
Has anyone else seen this kind of torque out of a SRT6?

I've now had this car over 180 mph [Jan 15, 2009] with the top down and had more power than Nerve. I doubt I'll ever do this again but...
I did win the race and the $$$$ bet. I no longer care what my 1/4 mile time is or could be... I took down a 10.5 sec 1/4 mile 2009 ZR1(claimed). From 80 to around 130, it was close (maybe .5 -1. car length but no contest after 150), at 180 I was at least 2 car lengths ahead.
enjoying the ride 4 miles at a time

 

Will the headers fit on the slk 32??

 

should be fine. im debating a set for mine because of the dual exhaust issue the slk32 has

 

so how hard is the intall for these headers? thats a decent price.

 

about 6 hrs work if nothing goes wrong. you may as well change the motor mounts as long as the engine is jacked up

 

Thank you sir

 

collin, you are a crazy cajun for sure...that is a lot of torque...how's the phantom grip, and who installed it for you, not to get off subject, but with that torque, you would need it...

 

Thanks - thats great info and great performance numbers for your SRT6 - you got a real screamer on your hands!

 

Very soon guys we will get some video and dyno charts on here for you, keep posted and hurry up and get those pre orders in before that price changes.

 

Now if Jake would put me on a 90 day payment plan for headers only.... Squirrel Crusher

 

Hey Doc,
The phantom grip works well but I do find that it slips on rare occasions, They do have a tuning kit to upgrade the unit if I ever feel the need. I was really hoping for a Quaife but I’m happy with it over all and it’s quiet no chattering or clunking noise at all.
Basically, as one wheel starts slipping, the plates under spring tension twist in opposite directions and wedge outward on the spider gears. This causes friction between the spider gears and the case, and makes the wheels turn at the same speed.
I installed it myself with some help from my neighbor, he’s big time into racing and changes out gears frequently in his race cars so he was able to walk me through the install. Waldig has a nice write up on installing them with pictures and that was helped. Over all I took my time and had it installed over a weekend.