Very good question!!!!
Missed that.:happy0180:

Just sounds more sporty and throaty....very clean sound.

I would love to be able to help, but next time I'll be able to make it to the Dyno will be less than two weeks with FI kit installed :( (I can ask @raul who has Nameless exhaust to see if he is interested). What filter are we talking about?? (Hoping for the Works!!!) Most probably he would do it in a Dynojet because that Mustang Dyno was expensive :mad0260:



Those are very good numbers! The only comment I would add is that Mustangs read lower than Dynojet's, but nonetheless, those are awesome numbers!


I really can't remember much how the car sounded stock as I went from Nameless full exhaust to removing the axleback and keeping the downpipe but I can say that it sounds louder inside the cabin. I believe outside the car its very similar to stock. All very nice type of sound, not annoying.

you cannot compare one dyno to another like that. Your best bet would be to compare another stock vehicle on the same dyno, less prone to error than one dyno to another.

Yes yes, I agree there is no baseline, all numbers are speculation. But a fact is Mustang dynos read lower than Dynojet Dynos, just the nature of the beast. I posted the picture with uncorrected and corrected numbers for weather conditions, so even though it is all speculation, we can get a ball park figure on where it is and Leemaster's guess is not far fetched BUT I wholeheartedly agree, there is no certainty based on this Dyno about exactly how much Nameless DP/OP gains, just ballpark figures.

Added more pics to OP

How does the nameless add so much more power than the motiv/invida/etc? From my understanding at the end of the day its the same diameter pipe with the same bends in the same places-am I wrong?

The nameless also replaces the overpipe and probably has a better cat (speculation of course).

Also the plot posted in post #3 from nameless is for the combo of the old axleback with the over / front pipe not just the Frontpipe alone with otherwise stock exhaust, or adding the over / front to the axleback. In other words if the stock catback is a bigger restriction that the front pipe, you would see a bigger gain from the front pipe AFTER replacing the catback than before replacing it.

I am running the catted, helmholtz, over/front pipe right now with otherwise stock exhaust. I am not going to bother going to the dyno again until I add the axleback. The sound is a little different, a bit more aggressive. But in all honesty, after the first few minutes of a cold start you would be VERY hard pressed to tell mine from stock.

So, it is louder during cold start, but once the idle kicks back down you can't tell a difference due to the stock catback.

Nameless OP/DP has different bends and makes the OP/DP into one piece. The point of this thread was not to advertise or showcase the Nameless DP/OP combo. My only intent was to get a baseline before getting a turbo. I was not going to bother getting the car up, raising the engine, etc. just to get a compelte stock baseline, so I only left that installed in the car and Dynoed it. It just so happens that the Dyno numbers came in that high. But like I made very clear in the OP, all numbers are just speculation because I dont have a real baseline number. Either way, numbers look impressive given it was a mustang Dyno but ALL speculation, nothing else.



Edit: Mad_sb was referring to the Nameles Dyno plot, not mine.

My car was with ONLY DP/OP everything else in the car was stock :D

I think I remember reading somewhere from nameless that there isn't a power difference between the downpipe and downpipe overpipe combo. I also remember them saying the cat they use flows the same as an open 2.5" pipe and is rated for a 500 hp engine. So if there is a difference it may be that.

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Yeah man, not your plot from the original post, sorry for the confusion. The nameless plot from post #3 is the one i was talking about. :thumbsup: I edited my post for clarity, the plot from post #3 is for the combo of axleback and front / over pipe according to the nameless website.

Ohhh yes yes!! Nameless plot is with OP/DP AND Axleback :happy0180:

Good numbers, but wait till you have boosted numbers lol. Your going to beyond happy.

I have a baseline with ONLY the Nameless offset axleback. I just installed the over/downpipe with HFC and Helmholtz; I'll will go back to the EXACT dyno I got my baseline done on and provide the forum with those results.

Sound? Good god it's awesome.