how much louder will it be?
10-07-06, 01:45 PM
#1
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how much louder will it be?
i currently have m2 down pipe, stock mid pipe (cat), and single tip racing beat cat back.
just purchased a megan mip pipe. 3" straight through pipe.
How much louder will it be? will the sound pitch change? just asking because its so quiet right now
thanks.
just purchased a megan mip pipe. 3" straight through pipe.
How much louder will it be? will the sound pitch change? just asking because its so quiet right now
thanks.
10-07-06, 02:04 PM
#3
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agreed....and make sure no Cops or anything is around you, when you step on it youll be shooting out black smoke, are u on the stock ECU?
i just blew my motor because i coudlnt wait for my PFC to come in, so i advice upgrade your ECU before you boost creep and fuel cut...
but other then that, if your cruising about x< 3 RPM it sounds nice, but when boost kicks in, it screems like open downpipe cars.
i just blew my motor because i coudlnt wait for my PFC to come in, so i advice upgrade your ECU before you boost creep and fuel cut...
but other then that, if your cruising about x< 3 RPM it sounds nice, but when boost kicks in, it screems like open downpipe cars.
10-07-06, 02:15 PM
#4
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my mods are as follows:
-Brand new (not rebuilt) transmission from Mazda, added B&M shortshifter with MOMO ****.
-Brand new 99 Spec Turbos from Rotary Performance
-ECU upgraded with fully programmable Apex'i PFC
-Suspension - Koni Yellow adjustable shocks, w/ Eibach springs, and RE rear toe-links
-Exhaust - M2 Downpipe and Racing Beat Single Tip Cat-Back exhaust.
-Intake - HKS Racing Suction
-Cooling - Koyo Aluminum Radiator w/ aluminum AST new coolant lines.
-Intercooler - Greddy 2 Row Front Mount w/ Greddy Elbow and J-Spec Y pipe
-Greddy Spec II Boost Controller.
-Greddy pulley kit.
so ill prob set the boost for 10 assuming it to creep to 12~....any other sugg?
also just about to install brand new mazda reman
-Brand new (not rebuilt) transmission from Mazda, added B&M shortshifter with MOMO ****.
-Brand new 99 Spec Turbos from Rotary Performance
-ECU upgraded with fully programmable Apex'i PFC
-Suspension - Koni Yellow adjustable shocks, w/ Eibach springs, and RE rear toe-links
-Exhaust - M2 Downpipe and Racing Beat Single Tip Cat-Back exhaust.
-Intake - HKS Racing Suction
-Cooling - Koyo Aluminum Radiator w/ aluminum AST new coolant lines.
-Intercooler - Greddy 2 Row Front Mount w/ Greddy Elbow and J-Spec Y pipe
-Greddy Spec II Boost Controller.
-Greddy pulley kit.
so ill prob set the boost for 10 assuming it to creep to 12~....any other sugg?
also just about to install brand new mazda reman
10-07-06, 02:27 PM
#5
Not the company
Originally Posted by kuroi FD
a lot louder, I dont mind it but some people do. Its also gonna smell like gas all the time.
+1 for smelling like gas all the time!
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10-07-06, 02:50 PM
#10
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lol...thats funny....
will there be any kind of noticable gain with removing the cat? I heard that, that is one of the best low cost gain mod to be done....like i said i heard that not stating it.
will there be any kind of noticable gain with removing the cat? I heard that, that is one of the best low cost gain mod to be done....like i said i heard that not stating it.
10-07-06, 02:51 PM
#11
I went from a near silent exhaust to a LOUD exhaust just by replacing the stock cat with a 3" RX7store midpipe. It will be MUCH louder. And yes it will smell like gas all the time but that's a good thing. It keeps people away from your car, right?
Not a HUGE difference from replacing the cat IMO, but I noticed quicker spool and better low end power. Oh and a bit more attention =)
Not a HUGE difference from replacing the cat IMO, but I noticed quicker spool and better low end power. Oh and a bit more attention =)
10-07-06, 04:13 PM
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Originally Posted by pwwatkins
you should have gotten a resonated midpipe. imo
10-07-06, 04:17 PM
#15
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Be careful, you may find yourself creeping to 15-17 psi, especially in cold weather. I don't suppose you had rotary performance port the wastegate of those efini twins?
10-07-06, 04:19 PM
#16
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Originally Posted by prescription 7
Or go hi-flow cat with a DP. Street legal, doesn't smell, not as loud, and it'll help once you start upgrading your turbo system by helping to control boost spike and creep.
10-07-06, 04:37 PM
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no i did not port the waste gate. Although the motor will be in pieces next week so I can probably have that done. I live in south florida, about 1 hour north of miami for location refrence....so i dont think ill really have to worry about cold nights. i also have a warning light and buzzer on my boost controller so if it does creep as soon as it goes past i will know.
10-07-06, 04:40 PM
#19
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Originally Posted by AWD-RWD racer
no i did not port the waste gate. Although the motor will be in pieces next week so I can probably have that done. I live in south florida, about 1 hour north of miami for location refrence....so i dont think ill really have to worry about cold nights. i also have a warning light and buzzer on my boost controller so if it does creep as soon as it goes past i will know.
I recommend you have the wastegate ported. Better safe than sorry
10-07-06, 04:42 PM
#20
I've never seen any boost creep with my midpipe. I have my TurboXS MBC set at 14psi and I haven't seen any creep at all. I live in the Pacific NW and even when it gets cold I don't see boost creep. Maybe my car's just special. I've heard FD's with resonated midpipes and it does make a big difference in noise.
10-07-06, 04:52 PM
#21
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Originally Posted by GoodfellaFD3S
Right, but there will be nothing you can do to control it, short of introducing some exhaust restriction.
I recommend you have the wastegate ported. Better safe than sorry
I recommend you have the wastegate ported. Better safe than sorry
is that a difficult task to do? porting the wastegate? Im sure the guy doing my motor will know how. He owns 2 sub 10 sec rx7's that he built himself.
I know boost creep/spike happen fast but the buzzer and light is litterally right infront of my face....mounted on the steering colum.
10-07-06, 05:10 PM
#22
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Originally Posted by AWD-RWD racer
is that a difficult task to do? porting the wastegate? Im sure the guy doing my motor will know how. He owns 2 sub 10 sec rx7's that he built himself.
I know boost creep/spike happen fast but the buzzer and light is litterally right infront of my face....mounted on the steering colum.
I know boost creep/spike happen fast but the buzzer and light is litterally right infront of my face....mounted on the steering colum.
10-07-06, 05:17 PM
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I have the solution to all your problems 
Nice SS magnaflow midpipe w/ a really sweet bung/tap for the innovate wideband that will come with it so you can watch your AFRs.
$600 shipped.
PM me if interested.
Nice SS magnaflow midpipe w/ a really sweet bung/tap for the innovate wideband that will come with it so you can watch your AFRs.
$600 shipped.
PM me if interested.