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Which should I get?

  • Solo 2.5" Catted HF DP

    Votes: 7 31.8%
  • Pierce 2.5" Catted HF DP

    Votes: 15 68.2%
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Discussion Starter #1 (Edited)
So I've been digging through a lot of the posts regarding down pipes.
I'm in the market and have my mind set on 2.5" catted high flow.
With that being said, let's compare... thoughts? concerns? discussion? arguments?...

SOLO
Initial release/group-buy price: $339.15 (ends sept. 30)
Current price: GB pricing will change to $399.18
Cel count: 200
Bolts to stock: YES
HP results: 30 to the wheel (+-5)
Torque results: 25 to the wheel (+-5)

Pierce
Initial release/group-buy price: $379
Current price: $440?
Cel count: 200
Bolts to stock: YES
HP results: 17.7 to the wheel (+-5)
Torque results: 5.3 to the wheel (+-5)
 

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Seriously it's delivering that much to the wheels?

Can anything be done to take care of the CEL's though?
 

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until someone does an independent before and after dyno of the solo downpipe, i wouldn't get caught up by the claimed gains. price on the other hand, can't really get much better than that
 
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which one is throwing that much?

do you mean CEL(code) or Cell count in the CAT?
Maybe I'm reading the threads wrong. Aren't guys popping check engine lights with these?
 

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I highly doubt the solo puts down that much more HP than pierces. I don't even think my catless put that much down.
 

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I have the solo DP and 1000kms later there are no codes. They had 5 or 6 testers running thier DP before it was released and as far as I know there are no CELs.

As far as the gains are concerned they used my car to do the dyno tests. Take it for what it is. They aren't fabricated numbers.
The base run was with 345 FMIC, sock's BOV, and Solo Catback, removed the OEM intake resonator (still have oem air filter and intake)
The after run was all above plus DP.
 

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Discussion Starter #10
Ah, so that numbers includes FMIC and Full exhaust... that makes sense when looking at the numbers.
I do like the price and no CELs for SOLO
 

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Yea a bit misleading to include exhaust and FMIC. I understand it's TOTAL gain, but posting the results of baseline with exhaust and fmic then results with the DP would give us a better/clearer comparison.
 

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Yea a bit misleading to include exhaust and FMIC. I understand it's TOTAL gain, but posting the results of baseline with exhaust and fmic then results with the DP would give us a better/clearer comparison.
Maybe I don't understand ur statement...

The base was with FMIC and catback. It was a pretty clear "before" picture.
 

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Discussion Starter #13
hmmmm... so my educated guess is, with almost exact same design and Cell count, the gains are +- 1/2HP the same.
now the current thing I got going is pricing...
 

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DAMN 400 for a catted. I am glad the catless are only 240 lol

It is the same as cai's. one claims this much horsepower, another claims a different number.

From what I always heard, comparing dyno's are irrelevant unless they are done on the same dyno and car.

If Jim had his dyno done on a hot day on a certain dyno wherever he lives, and solo got theirs done on a different VT on a different dyno on a different day, of course they are going to be different numbers. What is to say that using jims dp wouldn't have had the same numbers if mwil028 had it and took the solo dp off and put the pms dp on and dyno'ed it right then and there?
 

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For my sanity, craftsmanship and not to mention SUPERIOR customer support, I will pretty much always go with a Pierce product. I know for a fact that Jim wouldn't put out anything that he hasn't tested himself on his race car VT nor something that he doesn't believe in. He's not in this game for making a quick buck, but rather to enhance the cars that we all drive. He's been doing it for over 30 years if I remember correctly and the VT lineup is not his first car he's done work for ;). Now, as far as "gains" and numbers in general, we can split hairs over that biz sometimes. Just make your own buying decisions by reading up, inquiring and looking around. Once you ask opinions, well, we all know where that can get us... My 2 cents, not yours.
 

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DAMN 400 for a catted. I am glad the catless are only 240 lol

It is the same as cai's. one claims this much horsepower, another claims a different number.

From what I always heard, comparing dyno's are irrelevant unless they are done on the same dyno and car.

If Jim had his dyno done on a hot day on a certain dyno wherever he lives, and solo got theirs done on a different VT on a different dyno on a different day, of course they are going to be different numbers. What is to say that using jims dp wouldn't have had the same numbers if mwil028 had it and took the solo dp off and put the pms dp on and dyno'ed it right then and there?
Yea the DP is a foot long and both of these are the same 2.5" diameter, with zero bends. Come on now.
 

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Maybe I don't understand ur statement...

The base was with FMIC and catback. It was a pretty clear "before" picture.
Yes I agree that there are gains but it appears the criteria for judging both results are not the same.

The ~+30 hp/25tq gain is not the SOLO DP by themselves but with the exhaust and the FMIC, while the ~17hp/5q for the Pierce one are the gains of the DP by themselves. do you get what i mean?

Say Stock VT = 180 hp and with Exhaust and FMIC = 200, now you take the 200hp VT and add the DP and got 220. the DP's gains are 220-200 and not 220 - stock dyno.

they're both 200 CEL count and fairly similar in design i doubt one would have twice as much hp and 20 extra tq over the other.
 

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Yea but the ~+30 hp/25tq gain is not the SOLO DP by themselves but with the exhaust and the FMIC, while the ~17hp/5q for the Pierce one are the gains of the DP by themselves. do you get what i mean?
According to what he said the pierce and solo DPs both had those same mods on and just the DPs were switched for testing. Still hard to believe.
 

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Yea but the ~+30 hp/25tq gain is not the SOLO DP by themselves but with the exhaust and the FMIC, while the ~17hp/5q for the Pierce one are the gains of the DP by themselves. do you get what i mean?
Ah got ya. But if all that stuff was on the base run and still on the after run what's the difference. It's not like we changed the catback or added the FMIC with the DP.
 

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Discussion Starter #20
i believe pierce had a magna muff in place of reson and no reson with stock exhaust tubing. he had no FMIC in place...
with that being said, he even admitted that a full exhaust will gain HP and Torq with the DP(even if its Catted)
 
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