Sincity

Is that ID or OD?

Mrbig

this debate will go on and on lets have headers challenge !

RStevens63

What debate? I see one brand of longtube setting track records 1/4 and 1 mile, which mean more to me than any kind of data IMO. The same brand also leads in GPS/VBOX testing, and backs it up with a dozen or more customers dynoing at their own test site. At this point I think the time for a challenge is over, the results are in and supplemental data continues to back the initial findings. To even consider a Kleemann log manifold vs a true longtube is doing yourself a huge injustice. What is the goal of your car?

Even Money

I'm doing my last Kleeman K1 dyno on Sat, after installing some carbonio foam filters and cleaning the MAF...then it's on to MHP LTs, with data, dyno/1/4 mile in about a month!

harrower

+1 on MHP and ECU re-flash. Going cat-less so hope the neighbours still like me after a few cold starts

superlubricity

Your neighbors will hate you. A catless C63 will make your Viper sound like a Civic. Seriously, no street car is louder.

Suggestions that might help with cold start :

• Start the car with the garage door closed.

or

• Stuff huge sponges in each exhaust tip to muffle the sound at startup.

or

• Simply never shut the car off.

harrower

[quote=superlubricity;4198651]Your neighbors will hate you. A catless C63 will make your Viper sound like a Civic. Seriously, no street car is louder.

Suggestions that might help with cold start :

• Start the car with the garage door closed. - will work except for weakening the foundation of the house

or

• Stuff huge sponges in each exhaust tip to muffle the sound at startup. - Kaboom!

or

• Simply never shut the car off. - not an option at $8.00/gallon

[/quote

Will see how it goes. I guess payback is in order for their barking dog and for them running lawnmower early in the am on the weekends. Payback is a ***** isn't it!

Sincity

[QUOTE=harrower;4198695]I would condition the dog/master by aiming the rear of the car at the dog and revving it hard everytime it barks.

avengerboater

[QUOTE=Sincity;4198762]I support this notion.

And I wouldn't cold-start with garage door closed, unless you want to your walls to amplify the loudness.

RNS-11Z

I think this is one of the best threads on this site with out any debates. Every one agrees MHP so far holds all records. MBH soon will be able to back this up (unless they have but i havent seen any figures yet) and I will add to that list in the next couple of weeks. I think for all c63s this has been a very healthy discussion and alot of good info out there.


h.

myblkc63

Anyone running Evosport LTH?

RNS-11Z

ID,

Sincity

Can't wait for your install to be completed and your impressions.

RNS-11Z

thanks

this is a pic inside the xpipe

harrower

Here is SuperSprint offering. http://www.supersprint.com/USP000mer2041.asp
Competitive on price. Attached are dyno sheets. ECU tuned by Carlsson.

OEM (with OEM ECU):
Claimed data: Horsepower 457 Hp @ 6800 rpm
Torque 600 Nm @ 5000 rpm
Actual data:
Horsepower 452,8 Hp @ 6640 rpm
Torque 570,6 Nm @ 4395 rpm

Supersprint (with ECU CARLSSON)
- Rear exhaust R. 846626
- Rear exhaust L. 846646
Actual data:
Horsepower 486,4 Hp @ 6405 rpm
Torque 579,9 Nm @ 5225 rpm

Supersprint (with ECU CARLSSON):
- Manifold R.- L. 846601
- Front metallic kat R. 846602
- Front metallic kat L. 846622
- Centre exhaust 846603
- Rear exhaust R. 846626
- Rear exhaust L. 846646

Actual data:
Horsepower 519,7 Hp @ 6715 rpm
Torque 620 Nm @ 5010 rpm

For comparison here are OEM vs. Carlsson ECU tune dyno charts

harrower

Pics of dyno charts as per above

brad @ evosport

FYI, we dropped the Supersprint line due to countless warranty issues and the way they were handled (or in reality NOT handled) about 4-5 years ago. YMMV.

Sincity

Brad, can you elaborate what the warranty issues were?

brad @ evosport

It was not on this car, but the issues were cracking pipes, o2 bungs breaking off, etc. Then the US distributor not reimbursing us for any of the warranty work to fix the problems (and it was seemingly a problem with a large % of the production run).

That episode was what drove us to start making our own headers.

It was pretty well documented on some BMW forums back then.

thanks
Brad

Mrbig

About to complete my header options and think Gtpro may be the answer !!!

Even Money

Based on what??

Mrbig

Been going back and forth and he really knows his stuff well has alot of research on all products his and others and also built in the USA and by a company which does alot of performance parts and builds great stuff for factory made vehicles as well! Priced right as well, now my tune may a custom one done by my buddy at TTM so well see !!!

BerBer63

I wouldn't go that far...your probably buying my re-manufactured set, which was useless metal a few months ago. Also there installation prices are exorbitant. Know what your buying before spending thousands and good luck.

Mrbig

Guess we will see !!!

RStevens63

Thank you for sharing that info!!