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I bought the DTH center exhaust. I like both exhausts, the BPP sounds mean as hell, but the DTH sounds more high end. Just personal taste. Funny but it sounds nicer than my SLK, imo.
 

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I just posted pictures of both exhaust systems, The BPP was too loud, I could not enjoy my music. The DTH is a little bit quieter and looks better. The BPP weighs 12.5 lbs and the DTH weighs 10 lbs. I lost 3-4 mpg using the BPP, from 38mpg average to 35 average. I will let you know what the DTH is after a couple of tanks.

 

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I have the DTH single and I like it a lot. It's pretty easy install, even for a guy who hasn't been wrenching cars for the last 2 decades - took me about an hour.

I don't know if performance really is enhanced or it just gives that perception. I challenged my buddy in his DB-9 but he was too busy laughing to find the gas so I guess we'll never know if we would have had proof...
Needless to say, it's fun, it gives an attitude uplift and, for that alone, is well worth it.

The only "con" is that is does interfere a bit with listening to music on your "premium" sound system. I've only had mine on for about 8-900 miles and some on the forum have said that it mellows out a bit as it gets broken in. If that's true then that only "con" will drop in significance.
 

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Discussion Starter #10
great feedback all. i'm especially interested in tigerwong58's opinions since he owns both. it seems like the 4smartcar DTH is in the lead
 

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I just posted pictures of both exhaust systems, The BPP was too loud, I could not enjoy my music. The DTH is a little bit quieter and looks better. The BPP weighs 12.5 lbs and the DTH weighs 10 lbs. I lost 3-4 mpg using the BPP, from 38mpg average to 35 average. I will let you know what the DTH is after a couple of tanks.
Was your BPP the Sport Version?

BPP offers on all ther exhausts a Touring or Sport version, the Sport being about 12% louder over their Touring.

I remember reading here that other members mentioned the BPP is quieter than the DTH.
 

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Mine was the Sport Version, there was no Touring version when I bought mine 2 months ago or at least it wasn't offered to me as an option. The BPP tips don't shake as much as the DTH tips for center exhaust, it's just enough shake to kiss my body kit. I'll trim more off this weekend.
 

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Discussion Starter #13
tigerwong58, love the way your car looks. i'm having tint + eibach springs installed next week. i'm skipping the s-mann kit...but will have a center exhaust. thanks again for the posts
 

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I had the "Sport" Breathless twin and I thought it was a tad too loud for our quiet neighborhood.

My wife and kids loved it though. I now have the "Touring" Breathless twin and the sound is sweet.

Both models are very well made and Ernie's customer service is top notch.

I can't talk about the other exhaust options, DTH and Twin-Evil, as I have not seen or tested them yet.
 

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Discussion Starter #15
thanks WilyB for the note. It sounds like most think BPP's "sport" dual is too loud. how's the touring sound on the highway?
 

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I have the Breathless and it is great.

it gets me more power and more milage. I get to choose. the harder I press on the go pedal, the less milage I get. the lowest I got so far is 36 mpg per tank when I drove the piss out of it to see what it did to the performance. I really drove it hard and still got 36. Now I am getting around 46mpg per tank being light on the pedal. I think if I was super conservitave and didn't use the air conditioning I could get over 50 on my trips from Sacramento to Redding on I-80. I also added the scoop and a K&N filter. the filter and the scoop really helped, much more than I thought they would. It makes sense, I cannot get any more air out if I cannot get any more air in.
 

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Discussion Starter #17
mendo, thanks for the note... how do you like the tone + loudness level of the BPP? addtionally, how do you like the K&N filter?
 

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mendo, thanks for the note... how do you like the tone + loudness level of the BPP? addtionally, how do you like the K&N filter?

I like the sound. it is not raspy and has no drone or loud parts through the power band. it is louder than stock and I like it. not like high school loud, like sports car loud.
 

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I have one of the first Breathless center twin-tip touring exhausts. I also put in the motorcycle baffles to quiet it down a bit more. Now it seems just right to me. Not too loud, great looks - especially when combined with Billet and Acrylics trim kit. Since I put on the Schmidt 16's (W/Yokohama S-drives) - the car now seems like the additional version that should have been available initially - the Smart Sport. :smartje:
 
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