9 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
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YOUR RESEARCHHeaders FVD VS SUPERSPRINT
Leading reported evidence
Run catless
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1
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Leading evidence: 'Run catless' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run catless' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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9 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
6SpeedOnline: 1 discussions
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Generation: 20261026T212127Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I am looking for buying headers for my 4s. Looking the net and see that FVD and supersrint is very similar look the photos. why pay double for the superssprints...
Hello everybody !!
So after failing sniff test for my catless cayenne , the co was 50% and it was permited only 30% and every year it will be half to meet euro 6 standart , I am concerend about my catless panamera.
I dont want to put stock back , because I like my performance now , is there any other way ? Putting oem back is f difficult , shop charged me 250$ because they remove front axle ( front differential ) for clereance .
An option is to install supersprint hjs cats which are placed in the resonator , so I can keep aftermarket downpipe but still I do not understand how can they work ? And also does 200cell hjs pass strick emmision test ? I dont want to risk spending another 3k and find out that it cant pass .
Thanks
I've heard good things about the FVDs but SS quality was excellent on the exhaust I had previously (not on a P-car). The 4S has different headers from a standard C2. They look more like x51. Well at least mine do. Might be more performance gained by high flow cats... Just my 0.02
Stavroskon,
The 2 key elements to a good header is the tube length and the merge collector. While I can't speak for the Supersprint headers I can tell you that the pipe length seems to be very similar between the 2 from the photos. The FVD headers have a pyramid style merge collector to smooth out the exhaust flow going into the cats. Headers are really for mid range torque. If you ask me, that is just what a 3.6L 996 motor needs more of. You will see torque gains betwen 10-15 NM between 2,500 - 4,800 rpms. Then you will also get about 10+ hp in the higher rpm range as you have freed up more exhaust backpressure.
I am located in balkan , before july nobody cared but now suddenly they introduced new emmision low when they put a tube in exhaust and measure 3 gas . I failed in the co because I am running catless . Didnt try pana. yet because my check is in november but I am very very worried
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