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Old 02-27-2013, 08:09 AM   #1
ThatManAnt
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Down pipe vs. Front pipe

Ok serious noob question here, coming from a Tc so idk whats more beneficial, adding a down pipe or a front pipe... Actually whats the difference in them period? Is it just boxer engines that have them? Cause all i know about is a down pipe lol
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Old 02-27-2013, 08:22 AM   #2
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I think that the 'down pipe' might be slightly better than the front pipe because it take 'some' of the torque dip away but you probably won't notice much of a sound difference as a front pipe would make it slightly louder, or raspy with a 'test pipe' on a lot of after market cat back exhaust systems if it's non resonated you will be in "rasp city". LOL Hope this helped :happy0180:
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Old 02-27-2013, 08:54 AM   #3
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Ok serious noob question here, coming from a Tc so idk whats more beneficial, adding a down pipe or a front pipe... Actually whats the difference in them period? Is it just boxer engines that have them? Cause all i know about is a down pipe lol
Don't get confused. There is no "down pipe".



Catless front pipes will LOSE POWER without a tune, as tested by @FA20Club.com in this thread . They will also increase RASP in the exhaust note without a resonator.

Catted front pipes will not lose power without a tune, again according to FA20Club, and they will maintain a mild exhaust note.
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Old 02-27-2013, 08:56 AM   #4
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Nameless puts out an overpipe (downpipe) /frontpipe combo ) and say replacing your midpipe showed negligible gains. Replace them both and leace the midpipe with the resonator alone imo

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Old 02-27-2013, 09:05 AM   #5
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Nameless puts out an overpipe (downpipe) /frontpipe combo ) and say replacing your midpipe showed negligible gains. Replace them both and leace the midpipe with the resonator alone imo

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Paging @86_ZN6, he sells WORKS midpipes that apparently make an additional 6 (crank?) HP with their axleback, for a total of 9 HP gained....
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Old 02-27-2013, 09:17 AM   #6
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Paging @86_ZN6, he sells WORKS midpipes that apparently make an additional 6 (crank?) HP with their axleback, for a total of 9 HP gained....
Hmm I may have to look into itm hopefully he will chime in, I was planning on getting the dp/fp, headers if I dont go turbo and keeping the stock mid pipe. May pickup that midpioe first though if its and extra 6hp.

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Old 02-27-2013, 09:34 AM   #7
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Downpipe/front-pipe are used pretty interchangeably here; traditionally (in the turbo Subaru world) the downpipe is the pipe that goes from the hotside of the turbo and forms the first portion of the exhaust (excluding the pre-turbo elements: turbo manifold and up-pipe).
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Old 02-27-2013, 10:06 AM   #8
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Don't get confused. There is no "down pipe".


Catless front pipes will LOSE POWER without a tune, as tested by @FA20Club.com in this thread . They will also increase RASP in the exhaust note without a resonator.

Catted front pipes will not lose power without a tune, again according to FA20Club, and they will maintain a mild exhaust note.
I would disagree that the catless front pipe loses power without a tune, that was tested with a combination of parts.
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Old 02-27-2013, 10:35 AM   #9
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Catless front pipes sound like ass. Stick with catted regardless. The difference isn't even noticeable but everyone else will thank you for your non raspy crap sounding exhaust.
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Old 02-27-2013, 10:38 AM   #10
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I would disagree that the catless front pipe loses power without a tune, that was tested with a combination of parts.
Agree with Joe on this one. The consensus among the tuners is you don't need to touch your tune when you change your OP/FP/Catback. Perhaps @FA20Club.com could clarify what was going on in that scenario.
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Old 02-27-2013, 11:05 AM   #11
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Catless front pipes sound like ass. Stick with catted regardless. The difference isn't even noticeable but everyone else will thank you for your non raspy crap sounding exhaust.
Disagree with this also, my catless front pipe and overpipe sound just fine with the stock catback and also when i had the MXP exhaust on there.
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Old 02-27-2013, 11:38 AM   #12
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There is no downpipe on this car due to the position of the engine.

Anything running 'down' from the engine would be scraping the ground.
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Old 02-27-2013, 11:43 AM   #13
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I think I read someone stated that the best mod for our cars is new headers, replacing the front pipe or mid pipe. We won't see any gain.
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Old 02-27-2013, 11:52 AM   #14
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Disagree with this also, my catless front pipe and overpipe sound just fine with the stock catback and also when i had the MXP exhaust on there.
Okay, so you've picked two extremely quiet systems which are the only way to really mask the rasp a catless frontpipe provides. The only loud system that has a catless front pipe that even sounds decent is the V1 with a Borla UEL header.
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