Review: SuperSprint Twin tube (2x 2.5") Section 2

[E46ERIC]

So...idk if it's been answer after reading all the comments, So what's better. I'm going with resonated version only. Ss Twin tube or SS "X pipe" for section 2? In my case this is my exhaust set up. Catless fabspeed headers, CPI rasp Terminator, OEM sec 2 and SCZA muffler section 3. Reason I ask is because the CPI section one has a crossover section (H Pipe) and so does the oem 2 and since it has 2 H pipe like right next to each other I feel like it's hindering exhaust flow so idk if my theory is good but ever since I installed the CPI RT I noticed at 2-3k rpm it's a "dead zone" or no power. I've been lazy to reinstall the oem sec 1 pipe to help prove it lol. I feel like it just needs a retune.

[DiscoWagon]

I currently have the resonated version for sale:

https://nam3forum.com/forums/forum/classifieds/members-parts-for-sale-wtb/e46/62032-supersprint-race-muffler-and-63-5mm-resonated-twin-pipe-section-2#post62032

[Onefastsicilian]

BUMPING an old thread.


thinking of swapping out my SGT single pipe resonated sect 2 for a SS 2.5in section 2.

I currently run the BW/CPI single stepped headers, SGT rasp pipe, SGT sect 2 and the SS Race muffler. Do you guys think I'll notice anything with the bigger section 2?

[DropTopKingM3]

BUMPING an old thread.


thinking of swapping out my SGT single pipe resonated sect 2 for a SS 2.5in section 2.

I currently run the BW/CPI single stepped headers, SGT rasp pipe, SGT sect 2 and the SS Race muffler. Do you guys think I'll notice anything with the bigger section 2?

Frank I did a lot of research on this. If you end up doing the cams and CSL airbox like you said then this sec 2 is for you. Either way it will flow better than your SGT sec 2.

[Cubieman]

Frank I did a lot of research on this. If you end up doing the cams and CSL airbox like you said then this sec 2 is for you. Either way it will flow better than your SGT sec 2.

Agreed, it would seems that cams/airbox/Ssv1's are the 3 boxes that need to be checked to make the oversized dual sec. 2 worthwhile power wise in an NA car.
However I would love to see some dyno numbers to show me otherwise and I would be interested as well in the SS dual.

[stash1]

Agreed, it would seems that cams/airbox/Ssv1's are the 3 boxes that need to be checked to make the oversized dual sec. 2 worthwhile power wise in an NA car.
However I would love to see some dyno numbers to show me otherwise and I would be interested as well in the SS dual.

I can’t remember where I saw it now (prolly in the ole M3F dyno thread), but someone performed this exact comparison on a dyno & the single 3” pipe was ok supporting hp into the 340 whp range...beyond that, either a larger single 3 1/2” or dual 2 1/2” system was proven to be necessary to make/support more hp.

Edit: It may have been Paul that posted those tests?

[x Spades x]

What was the GB price for this? Will another one come back around soon?

[/M3]

I have a full 2.5” cat-back setup (Supersprint un-resonated twin pipe section 2, Supersprint Sport section 3, Megan Racing dual resonated 2.5” section 1) mated to Megan headers which are pretty much Euro reps and obviously not 2.5”. I also just installed 272/280 cams. After reading the thread, now I wonder if the Megan headers will become the restriction in my build.

The other thinking is, if the 2.5” cat-back setup will yield to loss of power due to loss of back pressure, being bigger than the header piping. Losing my mind.

[Obioban]

Back pressure only ever hurts power.

[x Spades x]

I have a full 2.5” cat-back setup (Supersprint un-resonated twin pipe section 2, Supersprint Sport section 3, Megan Racing dual resonated 2.5” section 1) mated to Megan headers which are pretty much Euro reps and obviously not 2.5”. I also just installed 272/280 cams. After reading the thread, now I wonder if the Megan headers will become the restriction in my build.

The other thinking is, if the 2.5” cat-back setup will yield to loss of power due to loss of back pressure, being bigger than the header piping. Losing my mind.

You don't have a 2.5 system at all... actually,, you only have one 2.5 piece.

The headers need to be either SSV1 or ARH... im unaware of a sec 1 that can mate with a non 2.5 header, but if you say so then ok.. your sec 1 needs to be SSV1 (catted or non catted) or ARH matching sec 1. Your SS sec 2 IS 2.5. Your SS exhaust IS NOT 2.5. You need a Scorza (there may be a couple more). As of now, SS doesn't make a 2.5 exhaust.

[Obioban]

You don't have a 2.5 system at all... actually,, you only have one 2.5 piece.

The headers need to be either SSV1 or ARH... im unaware of a sec 1 that can mate with a non 2.5 header, but if you say so then ok.. your sec 1 needs to be SSV1 (catted or non catted) or ARH matching sec 1. Your SS sec 2 IS 2.5. Your SS exhaust IS NOT 2.5. You need a Scorza (there may be a couple more). As of now, SS doesn't make a 2.5 exhaust.

SS does make 2.5” mufflers, if you request it.

[/M3]

You don't have a 2.5 system at all... actually,, you only have one 2.5 piece.

The headers need to be either SSV1 or ARH... im unaware of a sec 1 that can mate with a non 2.5 header, but if you say so then ok.. your sec 1 needs to be SSV1 (catted or non catted) or ARH matching sec 1. Your SS sec 2 IS 2.5. Your SS exhaust IS NOT 2.5. You need a Scorza (there may be a couple more). As of now, SS doesn't make a 2.5 exhaust.

Not exactly sure what you’re talking about or where you are getting your facts but everything was measured by a gauge prior to install to ensure of the 2.5” piping.

[x Spades x]

Not exactly sure what you’re talking about or where you are getting your facts but everything was measured by a gauge prior to install to ensure of the 2.5” piping.

It looks like your headers and exhaust aren't 2.5, whats the confusion? SS doesn't make a 2.5 free flow exhaust and your Megan headers are smaller. So you have two bottle necks (when trying for a full 2.5).

[x Spades x]

I'm about to install this and have a question regarding the flat gasket. This is the same one from the smaller oem piping... is there a 2.5 inch 3 bolt gasket everyone is using?

[Cubieman]

I'm about to install this and have a question regarding the flat gasket. This is the same one from the smaller oem piping... is there a 2.5 inch 3 bolt gasket everyone is using?

You can use the same one, but I would check that it doesn't interfere/impede air flow, maybe folks are trimming the gaskets down on the inside to fit the larger piping.