Borla Exhaust
 

I bought my 07 MS3 with the Borla catback already on it. Will replacing the downpipe and cat with say the turbo xs stuff still give me plenty of power (with the AP)? Or could changing out the catback from a 2.75 to a 3" be worth the extra $500 in power? How much of a power difference should I expect to see between keeping the 2.75" and the 3"?

Rephrased question (guess I was drunk last night?):

Yes, I know this guys. Maybe I need to rephrase: What is the power difference of a full 3" (From the turbo back) compared to 3" from the down pipe and mid pipe to the borla exhaust.

Essentially, im asking if there is a huge power loss from keeping the Borla and just upgrading the down pipe and mid pipe compared to getting a full 3" turbo back exhaust

lots of threads out there on this stuff so i'll go ahead and say it:
search and read before asking common ?'s
catback makes almost no difference in power - all restriction is in the dp/mid pipe
if you already have a borla cbe - it should be 3" - keep it - it's like $700 new

This^

Except borla IS 2.75"

borla catback is beautiful. dont change it. Especially if its cause ur trying to gain power, cbe is not for that purpose... go the DP route.. ull be better off.

Yes, I know this guys. Maybe I need to rephrase: What is the power difference of a full 3" (From the turbo back) compared to 3" from the down pipe and mid pipe to the borla exhaust.

Essentially, im asking if there is a huge power loss from keeping the Borla and just upgrading the down pipe and mid pipe compared to getting a full 3" turbo back exhaust

Your question was already answered. the cat back makes ALMOST NO DIFFERENCE IN POWER. Keep the borla, and just get a full DP (not in 2 pieces) like the COBB.. or the most recent (and cheapest, while great quality) the CNT Catted OR Catless DP. They have an OEM Catback adapter which you will probably need to hook up to the Borla.

Ok so you are saying with upgrading the entire downpipe, I will make the same amount of power with the Borla as I would if I replace the Borla?

Lets pretend I have the Cobb downpipe on my car. How much more power will I get if I replace the Borla with a full 3" exhaust. Maybe the question can be answered this way

ok dude since you still seem drunk. just get a full downpipe and leave the borla. even if you switch the borla to full 3 inch you will see little to no gains at all

Once again, there will be NO POWER DIFFERENCE between a Borla and any other aftermarket cat back.

Alright got it this time. Im fucking retarded I guess.

On a side note: why does everyone feel the need for 3" exhaust

cause were a boss and dont give a fuck. oh and cause im going BT in a month

This explains further... The only situation you will see a power gain from something bigger than your borla, is if you decide go upgrade your turbo and manifold

Well I honestly haven't researched actual hp numbers and what it takes to accomplish those numbers (aside from fuel pumps). I want to sit right around 300 whp though. I assume stock turbo can handle that

look at my sig and that tells you what it takes to achieve 300whp

all i want to know is why does borla put such a big tip on their exhaust

fixed

cause its fuckin sweet, thats why.

or do something like me. Im at 305hp 340tq . I have similar mods, except catted DP and ETS TMIC.. good tune though, so that makes a difference it could be that i need to push a bit harder on the tune if i were to compare to someone with catless dp

unless you get a reworked k04, you arent getting 300whp on the stock k04

orlly?

I disagree. Stock k04.
http://i755.photobucket.com/albums/x...o_/dynoday.png

and i guess ill correct myself on the torque. Its not 340, its 330

dynopack...nuff said.

go to a mustang dyno or better yet, whats your trap speed in the 1/4

Well I have a Mazdaspeed intake, fmic and hks ssqv. Kinda depressing to know I will need a new and or reworked turbo. Unless I push the hell out of stock turbo.

Also what is the point in having a dashhawk if you have an AP?

im going to hit a dyno hopefully this sat and hit the track next week but DJ(Dustin) says my car is sitting around 275-280whp with my mods and his tune. to get more power i can do meth. the intake mani isnt causing the restriction, its the turbo not being able to flow enough. im boosting 20 settling to 18 by redline.

u have room for improvement. Get a downpipe and a tune and your car will open up pretty nicely... Those are the two mods that made the biggest difference for me... dont worry about the numbers so much dude... you will be plenty happy with those two upgrades... at least for a while. I guarantee it.

as far as it being a dynapack... true, they read higher than mustangs, but then again... theres still room for improvement getting methanol injection. Id agree that 300 is pushing the k04, but I disagree in claiming its not possible to get to 300 on the stock k04. Either way. Im very happy, Im sure expoz3d would be too with those two upgrades i mentioned previously.

the point of having a dh and an ap is so you can actually watch more then 1 thing in real time
ap only displays 1 parameter at a time
dh lets you put up 6 screens w/ up to 6 parameters on each screen, but most folks use 4