I think Supersprint is looking for a sample of a US-Spec downpipe.
If you're willing to ship the part to them in Italy they'll send it back along with their downpipe, with or without cat, for a special price.

 

Who do i need to speak to regards that?

 

I think I cannot post email or external links. PM for you.

 

Thanks for the replies about the differences!

As you know I have the Remus, and I have to say I doubt I would want the tone to be any different in open mode. I know you claim the SS is louder, but the Remus is utterly brutal with the valve open in conjunction with the racing tube (non silenced from pipe)

My car also made 202bhp on Evolve's dyno with only the Remus and Gruppe M air intake (it also made 202bhp with the stock airbox)

 

In terms of power the catback doesn't make any difference, at least on the EU-Spec car.
On the US-Spec car, which has a secondary cat on the front pipe, it may do!

To get some performance you need to work on the downpipe, that wil make +10~15hp at the crank.

Then with a tune I espect some great things, but I'm afraid most of the tune out there doesn't solve the Check Engine Light issue caused by the removal or replacement of the cat. There is a company in Germany, called Dynamic-Automotive, that can tune the ECU and solve the O2 sensor issue at the source, but they need the ECU phisically at their lab, and they charge around € 1000.
PP-Performance also have a proper tune I think.
If you want the absolute best in terms of performance at the moment I think it's the only way.

 

I'm thinking about custom fabricating my own exhaust. It'd be a catback system and definitely no muffler. Thoughts on keeping a resonator?

 

Only thing I have seen is the Miltek cat back non valved which is just under 900.00. Cheapest option is a rear muffler delete but cutting and welding involved.

 

Did you dyno it before changing anything. My guess your 202bhp from the factory as I have numerous Dyno's in that range.

 

No dyno from bone stock, just with Remus and GruppeM and also Remus with OEM airbox (both runs were 202bhp)

Possibly is 202bhp from the factory, in which case, thats pretty impressive.

My guess is the Remus offers very little power gain, but I'd like to think its worth at least a couple of horsepower due to the cost! lol

 

For those of you who have done a rear muffler delete: How much did it cost?

 

$40 for some dual tips on amazon and $40 for the cut and weld. Cheap and great.

 

That's definitely something to look into... Thanks

 

Milltek are now making a downpipe for is according to their website. Both decat and an sports cat option. I wonder what his would add to the already epic sound of the Remus exhaust.

 

will only do a downpipe if there is ready and proven solution for a cel.

 

I've been quoted ~$700 for a 2.5" mandrel bent stainless steel custom catback with a muffler. I feel like that is too expensive for the amount of work. Does this seem a little much or is it reasonable?

 

Does anyone here have a Supersprint exhaust and care to share about it?

 

I have a clip of my F56 with Remus exhaust and race pipe:

 

 

I'm having a hard time choosing between exhausts because I can't hear them in person lol. I like the sound of the jcw tuning kit and in some sound clips it sounds louder than most other exhausts but idk.

 

Agreed, and at this point, a stage 2 tune to the ECU seems like the only option (no akrapovic delete-r available). Warranty issues make me hesitant from tuning the ecu directly as opposed to a chip-box option.

 

What intake are you running? the GruppeM website doesnt have anything listed for the F56.

 

Hi as far as I know it's for the f56, it was ordered from Evolve who would be able to help you.

 

For the milltek exhaust in their website it says that an "exhaust tune is recommended". Can anyone provide some clarification on that for me please?

 

Asduming they mean to get the most out of the exhaust you will need a tune. 700 seems steep imo since it is almost a straight shot to the rear of the car. My delete is louder than the JCW kit btw and sounds as good. Ability to swap btn open and closed is cool just not 2k cool imo. I have several videos on the cars FB page, search for "grumble"

 

Is it really louder than the jcw?! Do you mean the jcw car, the jcw tuning kit, or both? I follow the Facebook page and the LXM page