kavik

I want a set of Shorty Headers for my C63, After reviewing all the threads and figuring our who is still in business I came up with these options.
: I would appreciate input as to quality / longevity / feedback of the headers I am considering

Top Speed Pro
Thunder Exhaust C63 headers
Modern Horsepower C63 headers
PLM C63 Headers

Thanks Guys!

Ambystom01

Why not long tube? My understanding was that shorty headers don't offer much if any gains over simply removing the primary cat.

kavik

They do offer less performance wise, but I want to keep things down to a reasonable noise level ...I will go with a secondary cat delete down the road

BLKROKT

You're going to get far more bang for your buck by deleting your secondary cats than installing shorty headers. Why not start there first and see how you like it.

kavik

I appreciate the input, but would still like input from people who might know anything about the above headers.......

Mort

I don't think Modern Horsepower is around anymore and he sold long tubes anyway. See American Racing Headers for their long tubes or MBH Motorsports.

Search for Superlubricity for PLMs. No idea about the others.

chrisridebike8

if you are going to spend $800 to have a header installed (this doesn't include the cost of the headers), get a LTH. Even the FI ones look decent if you are on a budget. I love my ARH LTHs. Other than my LSD, the headers have put the most difference into the car. secondary cat detele or LTHs. don't waste money on shorties.

Formaster

Guys, is here anybody who has short headers? Is on the market any 4-in1 or Tri-Y shorty? LTH is not possible in my land, because too loud and any modification on the exhaust need to be authorized, wich is terrible here (yeah, Switzerland). I looking for the best shorty solution, which will produce a bit deeper tone and gain some HP. I think will be the best any 4-in1/Tri-Y shorty, but not found any avaible product on the market, only Log-style versions. They did'nt produce other tone, as somebody shared here his experiences.

TonyGia

I have a set of Kleemann Shorty Headers for sale

CheckOrHold

The fact no one has much info on them and are all recommending LTH, should tell you that shorties are probably not a good option.

CaptnCharisma

I have the Renntech shorty's and I don't notice any difference in sound or performance.

Formaster

Thank you guys. Is need maybe the ECU tune together for gain some HP-s? I heard many times, the sound performance will not changed, but i thinking around the 82mm Throtthle body, which need some exhaust tune too. I will be more happy with LTH's but it's headshot here.

DRBC43AMG

Hi Formaster, I'm in the same part of the world as you and I agree that the technical authorities can be pretty *****y. I will not modify the exhaust on my C63 and probably will not touch it, not unless I find a system which meets local norms (noise) here.

I have modified my W202 C43 with a secondary cat and resonator delete since 10 years now. It has passed the technical inspection twice now as it is, with no problem or comments. Prior to that, I sytematically swapped the modified exhaust with the OE one and changed back after the inspection. What a hassle. Perhaps the 21 year old vehicle doesn't mow get too much close attention as they don't see many around anymore. The only thing they still check is the part # on the rear muffler.

Formaster

Yes, i thinked too on swap before the inspection, but i need now every 2 years inspect it, so is a bit much work. The other side is fear a little bit, that LTH will kill the daily usability with so much noise. The tune potencial is definitely there by NA engines. (Just take a look at Shmee150 YT channel, he bought now an SLS BalckSeries and first drive to the Renntech, for install LTH on the stock pipes. The sound is amazing, i neverd heard more beautiful song, but i think for long drive can be terrible