How much more Power do i get with higherflow exhaust?

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07 GP(base)ol' whitey, Headers/3"DP, CAI, 180*stat, HV3. Im the HotRodder with the HotRod!

Very little unless you are highly modded.

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Dubs:00 VW GTI VR6, Low and Slow 91 VW GTI 8v, Shave the Bay!! 91 VW Cabriolet 8v, bitch Basket
GP's:04 GP GT, Past now G-Ma's Girlfriend's 97 GP GT, "Project Pink Power"

Agreed. Don't expect too much. Maybe around 8-10 at most.

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1999 GT|SLP CAI|Borla Catback| Shift kit|18" Koblenz|GMPP Lowering|GMPP handling|Blk Headlights|ER Rcokers|HV3|HV TB http://www.fquick.com/The_Guz

depends on what you do. If you do headers, high flow cat, and a true "Y" instead of the goofy fasctory ones you could see some pretty good gains. Dont expect to be faster than gtp's because you have exhaust, but if you got a tune after the exhaust and a few other things it will be faster than stock gt's

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DIY intake-HV3-3" catless dp-180 tsat-DIY shift kit-murphy custom tune

The stock catbacks are able to support around 300whp, so freeing up the catback with no other mods will net you little improvement. However...... if you have a stock downpipe with a U bend, deleting the ubend or getting a different downpipe all together is worth a couple extra ponies.

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Dubs:00 VW GTI VR6, Low and Slow 91 VW GTI 8v, Shave the Bay!! 91 VW Cabriolet 8v, bitch Basket
GP's:04 GP GT, Past now G-Ma's Girlfriend's 97 GP GT, "Project Pink Power"

I wouldnt worry about the exhaust system right now unless you just want your car to sound different. I would go for headers, they will net you a larger hp increase and depending on what brand they are. They're cheaper than a exhaust system aswell.

Sent from my DROID BIONIC using Tapatalk

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My exhaust is all custom with, highflowcat, 2 1/2" pipe to duals with two Insenerator bullets to chrome tips(Beefy sound). I also have a 180* thermostat and airbox delete with spectre air filter. How much will that get?

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07 GP(base)ol' whitey, Headers/3"DP, CAI, 180*stat, HV3. Im the HotRodder with the HotRod!

Again, probably not much . Are you tuned for a 180* and change fan turn on points and did your exhaust work include a bigger DP?

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Dubs:00 VW GTI VR6, Low and Slow 91 VW GTI 8v, Shave the Bay!! 91 VW Cabriolet 8v, bitch Basket
GP's:04 GP GT, Past now G-Ma's Girlfriend's 97 GP GT, "Project Pink Power"

18o thermo wont do shit without a tune, you catback doesnt really do anything, but your intake gives you a little boost. If you want to have a solid N/A get an HV3, headers, a set of rockers, and a tune. That is my goal by the end of 2012

edit: Damn you matt and you quick fingers

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DIY intake-HV3-3" catless dp-180 tsat-DIY shift kit-murphy custom tune

50 billion horse powerzz!!!!!!

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92 LeBaron Convert: Turbo 3L 97 Grand Prix GT 4dr "Frankenstein": L67 4t65 swap
97 Grand Marquis: Summer DD 99 Grand Prix GTP: Top Swap Beater

I got awesome sound feedback. Its got a low rumble like a big block, a loud roar when i hit it. Awesome cruiser at 110mph its just the limiters holdin me back, i could do 130-140mph easy.

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07 GP(base)ol' whitey, Headers/3"DP, CAI, 180*stat, HV3. Im the HotRodder with the HotRod!

your intake is probably giving you a few extra ponies, but all the exhaust work isn't going to net any gains. you are going to need head work or forced induction to outflow the stock exhaust except for maybe the u-bend. Otherwise it's just for sound.

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CobaltSS.net Moderator

Yea it still isnt fast enough for me.

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07 GP(base)ol' whitey, Headers/3"DP, CAI, 180*stat, HV3. Im the HotRodder with the HotRod!

Sorry Kaleb.

So I'll take that as a no to a tune and headers/DP. Also, this isn't the autobahn so you might want to slow down before you lose your license for "cruising" at twice the speed limit.

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Dubs:00 VW GTI VR6, Low and Slow 91 VW GTI 8v, Shave the Bay!! 91 VW Cabriolet 8v, bitch Basket
GP's:04 GP GT, Past now G-Ma's Girlfriend's 97 GP GT, "Project Pink Power"

lol be careful hittin that limiter, just helpful advice if your cars like mine (04+) i'm pretty sure knockin the limiter and the tranny goin from D to N and back again is gonna murk our pixie stick transmissions, just my .02, but i'm happy ta help if you wants the all fabled MOAR POW3RZ, cause in the end, POW3RZ and looks is what we're all here for

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BRAP BRAP BRAP nuff said

I got a fuzz buster on my dashboard cops never catch me before i slow way down, gota love thoughs 4 wheel disc brakes.

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07 GP(base)ol' whitey, Headers/3"DP, CAI, 180*stat, HV3. Im the HotRodder with the HotRod!

Too bad the stock brakes are also not designed for high speeds and will fade like crazy if you actually had to panic stop from 100+MPH, but hey, not my car or life, so do what you want, just please don't take another motorist out due to your recklessness.

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Dubs:00 VW GTI VR6, Low and Slow 91 VW GTI 8v, Shave the Bay!! 91 VW Cabriolet 8v, bitch Basket
GP's:04 GP GT, Past now G-Ma's Girlfriend's 97 GP GT, "Project Pink Power"

Na, i dont mistake me like that, usually i drive conservatively on the road, i take my car to the track to go that fast.

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07 GP(base)ol' whitey, Headers/3"DP, CAI, 180*stat, HV3. Im the HotRodder with the HotRod!

i though the cops stopped useing the radar started useing the lazer?

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BRAP BRAP BRAP nuff said

they do use lazers now, so even if you have a good fuzz buster, you still need a jammer to scramble the signal.

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DIY intake-HV3-3" catless dp-180 tsat-DIY shift kit-murphy custom tune

Ok thanks.

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07 GP(base)ol' whitey, Headers/3"DP, CAI, 180*stat, HV3. Im the HotRodder with the HotRod!

Well now i have nice set of headers and 3" DP now. Bit of a difference.

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07 GP(base)ol' whitey, Headers/3"DP, CAI, 180*stat, HV3. Im the HotRodder with the HotRod!

Gp headers come with a Dp that attached to the stock.cat back location. So you just need headers

Android Fire

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Got the headers in. The only hard parts were getting the old manifolds off and fitting and adjusting and refitting the crossover pipe.

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07 GP(base)ol' whitey, Headers/3"DP, CAI, 180*stat, HV3. Im the HotRodder with the HotRod!