What exhaust and intake would you recomend for my 06 m45?

[MyM45WillMerkU]

I wanna purchase an intake and exhaust but im unsure of which ones would be best any ideas or opinions?

[ken in az]

I wanna purchase an intake and exhaust but im unsure of which ones would be best any ideas or opinions?

Exhaust - Stillen

Intake - none, see my post about my intake I made

[fiveliterbeater]

Intake : KeninAZ's custom intake

Exhaust: Stillen (if you have cash to blow), if you don't, go with a custom X-pipe 2.5" all the way back, from the cats all the way to the factory muffler removing the resonators.

[Indy Golfer]

What type of gains should we expect from the Stillen exhaust? Any dyno results or strictly "seat of your pants" feel? I heard the Stillen on a M35 and it sounded great, is there a big sound/tone difference from the 35 to the 45?

Thanks

[fiveliterbeater]

i cant tell you about the Stillen exhaust.......but i can swear to you that by putting a custom X-pipe and taking out the resonators and keeping the STOCK mufflers, my M45 sounds like a 350Z exhaust on steroids. its not too quiet, but it's loud enough to hear when you give it gas, and then back to silent when cruising at highway speeds.

[Q45tech]

The best designed intake and loudest exhaust system available will not improve the quarter mile time by even 0.1 seconds as that would require a 10 lb/ft torque increase across the rpm spectrum not just at a single rpm peak.

Any extra wheel tire weight will decrease performance more than can be regained. Remember each 100 pounds requires 10 lb/ft to offset.

Drivers who exceed 155 pounds are out of spec as far as vehicle design is concerned so are any passengers or trunk items.

The difference between empty and 20 gallons of gasoline is 125 pounds resulting in a 0.125 second difference in acceleration.

A full tank and a date is a disadvantage in acceleration.

[fiveliterbeater]

The best designed intake and loudest exhaust system available will not improve the quarter mile time by even 0.1 seconds as that would require a 10 lb/ft torque increase across the rpm spectrum not just at a single rpm peak.Any extra wheel tire weight will decrease performance more than can be regained. Remember each 100 pounds requires 10 lb/ft to offset.Drivers who exceed 155 pounds are out of spec as far as vehicle design is concerned so are any passengers or trunk items.The difference between empty and 20 gallons of gasoline is 125 pounds resulting in a 0.125 second difference in acceleration.A full tank and a date is a disadvantage in acceleration.

WOW! i didn't know you that you could fit so much BS into a single post about a car you don't even own! and on top of that, squeeze just a few more tablespoons of BS about a topic you know even less about.

congratulations!

p.s. you are aware that professional wrestling is fixed right?

Modified by fiveliterbeater at 11:05 AM 4/29/2009
Modified by fiveliterbeater at 11:07 AM 4/29/2009

[ken in az]

WOW! i didn't know you that you could talk so much BS into a single post about a car you don't even own! and on top of that, squeeze just a few more tablespoons of BS about a topic you know even less about.

congratulations!

p.s. you are aware that professional wrestling is fake right?

No, he's right. it is impossible to increase the performance of any car by 10ft/lbs throughout the entire rpm range.

We should all be thankful he is here to dispell performance related myths Who needs mythbusters?

[GJEMD]

WOW! i didn't know you that you could fit so much BS into a single post about a car you don't even own! and on top of that, squeeze just a few more tablespoons of BS about a topic you know even less about.

congratulations!

p.s. you are aware that professional wrestling is fixed right?

Modified by fiveliterbeater at 11:07 AM 4/29/2009

here we go again. Try the ECU thread its where the ponies are.

[szh]

WOW! i didn't know you that you could fit so much BS into a single post about a car you don't even own! and on top of that, squeeze just a few more tablespoons of BS about a topic you know even less about.

congratulations!

p.s. you are aware that professional wrestling is fixed right?

Dennis (Q45tech) has done more research and real automotive engineering on cars in his life than most members who regularly post here ... combined. Please do a search on his posts - particularly in the Engineering forum - and you will understand why what he says is often more accurate than anything you are likely to see with seat of the pants work.

Flame reactions are simply not necessary.

Z

[ken in az]

Dennis (Q45tech) has done more research and real automotive engineering on cars in his life than most members who regularly post here ... combined. Please do a search on his posts - particularly in the Engineering forum - and you will understand why what he says is often more accurate than anything you are likely to see with seat of the pants work.

Flame reactions are simply not necessary.

Z

Huh, he comes out here and says that increasing power and performance is impossible and does not provide any real proof and you don't consider that flaming? again, another example of having "tech" in your screen name and you are considered to know everything.

BTW - I read most of his stuff and I am not discrediting his knowledge, but it seems he does more reading than doing. He has posted several things that contradict each other when it comes to performance.

I just have a hard time with you guys. You are all very smart and civilized as compared to some other forums I've been on for other cars but at the same time you are all so naive about engine performance and pure driving enjoyment. I've posted improvements with my intake and I still get flamed for not providing enough proof and the naysayers have absolutely no proof of their claims and they are given the golden handle of the sword to chop us down. I guess the next step is to spend all of my money and time proving that my mods do work and the simple fact that I am right and they are wrong. Oh wait, I really don't give a shinola what anyone thinks! I just like to have fun and enjoy my car. So why do I post, so other people can enjoy their vehicle as well.

I have said it before but the mods here don't respect it - if you post that non performance related BS in a performance related thread - YOU will get flamed! simple as that. We have the same FLAME rights as they do.

[GJEMD]

VAROOOM VAROOOM the sound is soooo awesome

[ken in az]

Yeah, actually it is

is that a bad thing GJEMD?

[szh]

I have said it before but the mods here don't respect it - if you post that non performance related BS in a performance related thread - YOU will get flamed! simple as that. We have the same FLAME rights as they do.

I meant PERSONAL flame attacks. I.e., that have nothing to with the topic - there is a difference. Getting heated about the topic is generally not a problem.

Z

[dieselm35x]

Anyone have experience with the HKS suction kit? I don't know anyone who has it, but HKS makes some pretty good performance products.

[fiveliterbeater]

Dennis (Q45tech) has done more research and real automotive engineering on cars in his life than most members who regularly post here ... combined. Flame reactions are simply not necessary.Z

(szhosain) , i apologize for the personal attacks but here is the reason my "insults" and please see it from my point of view:

i'm embarrassed to say im a recently "retired" ex junkie street racer who lived and worked 2 jobs since i was 17 to simply buy and modify cars. i am now 30 and with the amount of money ive spent on cars in the past 13 years, i could have paid off a BA degree from UCLA. my point is that there is "book" knowledge (where people read books or sit on the computer and do nothing but reasearch cars) and there is "real world knowledge" where people like me, spend (or in this case spent) their fri sat and sunday nights at the track or the local dyno shop to watch their cars and other cars and get first hand results.its hard for me to stand by and watch "someone" with a 300k mile + dinosuar of a car and say ridiculous statements such as: "The best designed intake and loudest exhaust system available will not improve the quarter mile time by even 0.1 seconds as that would require a 10 lb/ft torque increase across the rpm spectrum not just at a single rpm peak"i mean, hearing stuff like that makes my blood boil. i mean it's like arguing with someone that swears that "the earth is flat and the sun revolves around the earth" anyway, i'm sorry if i come off as being a flamer, but from a guy who owned a procharged 5.0 and a bottled SS, you have to see why i can't just sit here and keep quiet. i'll refrain from flaming in the future.

[GJEMD]

Just because you spent a lot of time and money does not make your view fact based. What did you actually get for your effort? The only thing thats clear is the possibility that you've been a sucker and don't realize it.

[fiveliterbeater]

Just because you spent a lot of time and money does not make your view fact based. What did you actually get for your effort? The only thing thats clear is the possibility that you've been a sucker and don't realize it.

..........exactly the opposite capt obvious; its because I've spent a lot of time and money that makes my facts more believeable than someone just sitting at a computer spouting out nonsense. as to if I'm a sucker or not, I guess it depends on how you view it; I'm not proud of all the money dumped on cars but it was fun and I'm more responsible with my money now.

[chimor2001]

I got magna flow catbacks and I'm totally digging it. It's not to aggressive sounding until you floor it. Performance gains are good as well.

[GJEMD]

I got magna flow catbacks and I'm totally digging it. It's not to aggressive sounding until you floor it. Performance gains are good as well.

Again, Exhaust note makes NOT performance. My M45 is so quiet that if the radio is on you must watch the tach if driven aggressively. I prefer the Hans Solo HYPERSPACE version of acceleration. You know hit it and whala you're further down the road and its not apparent how you got there. STOCK RULES

[M4T5]

Again, Exhaust note makes NOT performance. My M45 is so quiet that if the radio is on you must watch the tach if driven aggressively. I prefer the Hans Solo HYPERSPACE version of acceleration. You know hit it and whala you're further down the road and its not apparent how you got there. STOCK RULES

I'm assuming your on the older side of the spectrum. Some of us younger to middle aged folks enjoy the exhaust note of a healthy V8 under the hood. Now if it's the V6 your sporting under the hood, then I would definitely keep the exhaust notes as quiet as possible.The only reason my M45 has exhaust on it was because surprisingly she wanted a little sound from it. The sound my exhaust system emits is quite tame really. It really sounds like an FX or G35 sport coupe, but with a little deeper tone to the exhaust sound.You cannot really hear it at cruising speeds or under light acceleration.It's all personal preference really.

J

[M4T5]

fiveliterbeater:

Q45tech is right about the added weight to cars and how they effect track times.Every extra added 100lbs to a vehicle equals a 1/10th of a second slower quarter mile time. Or vise versa!

On a side note, an exhaust upgrade can be a good performance increase if the ECU is tuned properly to accept the changes.

J

[M4T5]

To the original poster:

Use Stillen for your exhaust. They have dyno results on their website. They make a separate exhaust system for the M45 and another one for the M35. Even though the bolt up design is the same, they did their homework and found that between the two engines, a one size fits all system did not benefit both engines equally. For the intake, a good ole OEM air filter element will be sufficient.

J