Best set up is ARTs/TDX 2 w/ HFC option added.

 

You can't have a better exhaust than Motordyne, the quality and sound perfect. Not sure where some members get there knowledge but ART pipes are not as quiet as HFCs! You need to have run both to have an opinion! I didn't mind the sound of my exhaust when running ART pipes it was the stinky exhaust that was the turn off. There's no reason to sell your BERK'S HFCs, keep an eye on them if they start making strange noises call BERK's....they have a 1 year warranty.
Gary

 

Yeah it is, but I already asked Hydrazine (Tony) about the length of the HFC Module (12" can some confirm this?) and they don't fit in that setup if I take out the 8" extensions, so the muffler-back exhaust will sit and poke out by 4" and not to mention that one of the ends of the HFC Module uses bolts rather than the V band clamps. Unless Tony is willing to make the HFC Module 8" long and both ends V band clamps, he said no so that's why an Exotic Speed Exhaust System will only fit in the ART Pipes and XYZ Pipe with HFC Module setup. There another member has done this setup before but without ART Pipes and a Resonator Module rather than a HFC Module (https://g35driver.com/forums/reviews...rdyne-xyz.html). If the option you suggested and what I originally had in mind can be done, then I would have done it already...

A side from the sound, I'm wanting to know about the hp/torque gains of the two setup options I said and not other setups (I already know that all MD products together is the best, but that's not what I'm asking).

Cheers!

 

I ran both, as the video I linked to in my last post is of my car being dyno'd with F.I. HFCs and then with ART pipes. My Shockwave exhaust became slightly quieter with ART pipes. Not by much, but enough to be noticeable to me. It certainly didn't get louder.

The same results might not be true for others with different setups (different brand of HFCs, different exhaust brand).

 

Thanks again for all the replies.

I did check out the F.I. HFC vs ART pipes video with the TDX2 exhaust on both. They didn't seem like that much of a difference loudness wise. Thank you for putting up this video for comparison though.

I'm still wondering about the RESONATED F.I. HFC's though. Since they are resonated, it seems as though they would be quieter than both the ARTs and the F.I. HFCs. In a way I guess it makes sense that the ARTs could be a bit quieter compared to regular HFCs, but what about with the resonated HFCs? Hmm...

81gSky, did you notice performance gains with your TDX2 exhaust and oem cats? I've heard that there should be between a 12-17 HP gain just from from the exhaust. Does that sound accurate? How did your car run afterwards? Did you get it tuned after the exhaust? If so, did if feel like it needed it, or just because you wanted to do it? I've heard that a tune isn't neccessary if its just the exhaust so just wondering from your perspective since you ran OEM cats.