S54 Dyno Database

[IND-Distribution]

As you guys have identified, Supersprint will essentially do any (reasonable) pipe diameter with any jig they've created and it usually just requires a special request. Over time (and based on demand), they have been adding new part numbers to the catalog to cover these "special requests". As they already had the 63.5mm segment for the E46, it only made sense to add the 63.5mm rear SKU. They just added the new SKU last week so you're not crazy.

[CrisSilberGrau]

As you guys have identified, Supersprint will essentially do any (reasonable) pipe diameter with any jig they've created and it usually just requires a special request. Over time (and based on demand), they have been adding new part numbers to the catalog to cover these "special requests". As they already had the 63.5mm segment for the E46, it only made sense to add the 63.5mm rear SKU. They just added the new SKU last week so you're not crazy.

Will be very interested in a race muffler with 63.5mm piping, this will make the muffler quieter even by a bit. The weight is more key for me vs the SCZA, as well as the flow which might be marginally better on the SS. DM'ed.

[IND-Distribution]

Will be very interested in a race muffler with 63.5mm piping, this will make the muffler quieter even by a bit. The weight is more key for me vs the SCZA, as well as the flow which might be marginally better on the SS. DM'ed.

PM replied. Honestly I'm not sure the 60 to 63.5mm change will really be discernable in tone or volume, but maybe it will a tiny bit deeper? The weight will also go up ever-so-slightly. SS quotes the original race at 28 lbs, so figure such a small change in diameter shouldn't add more than a couple pounds and will still be a bit lighter than the SCZA.

[Cronenberged]

Anything with that sharp 180deg bend will rob some power (DIXIS, Gruppe M, etc.), dyno looks a bit wavy. This happened to a friend with DIXIS exhaust.

If you dont care, Dinan has the best flow, 2.5in dual. After that I think it’s the SCZA or Scorza, then maybe SS Race. Id love an SS race with 2.5in piping just dont think theyd make one anymore.

What was your buddies set up like, headers, Sec 1, 2, cams, intake…..anything else.

[CrisSilberGrau]

What was your buddies set up like, headers, Sec 1, 2, cams, intake…..anything else.

Oem euro headers, CPI rasp sec 1, oem sec 2, DIXIS. With and AFE intake car made around 315whp on a dynojet, Hassan mentioned the sec3/muffler was slightly holding back. It matters if you are after every little bit.