PPE Headers + exhaust on IS350

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06-21-10, 11:28 PM

#31

TokerIS350

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ill post a sound clip of Invidia Midpipes/ Wald Exhaust / PPE headers pretty soon

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06-22-10, 02:45 PM

#32

Keith13b

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Quote:

Originally Posted by funnie

sorry noob question about the ppe headers. Are there any long term or short term problems with installing the ppe headers. A buddy told me headers in general will decrease gas mileage, but are there any other long term effects like having to replace certain parts due to premature wear because of the headers.

thanks for the info guys.

In general headers will improve fuel economy based on exhaust scavanging; however, most of the time the lead foot associated with having the new headers will cause the economy to go down.....considerably..... until you start driving under normal conditions.

I, however; have no experience with PPE systems so I can't comment on their system. But hopefully sometime soon I'll look into it. In the mean time you should not have any pre-mature wear on any parts except maybe the rubber gas pedal cover. Sometimes that wears down after excessive heavy stomping. Thats why you install the sport pedals! Sorry couldn't resist.

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06-24-10, 09:05 PM

#33

AZ JB

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Quote:

Originally Posted by carLx

Here's a another (better) vid of the PPE headers + exhaust from PPE themselves -

http://www.youtube.com/watch?v=V7xvlM7F8aA

You can hear how it sounds going WOT outside and inside.

I need to post a new vid of my car lol.

Quote:

Originally Posted by Keith13b

My avg MPG has actually gone up about 1mpg since I finished the mods. I was averaging 19.1 and now I'm averaging 20.0-20.1.

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06-25-10, 01:52 AM

#34

integlspwr

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we need dynos!

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06-25-10, 08:18 AM

#35

iSuxeL

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Man it's pointless for me to post anything cause my car's too loud haha

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06-25-10, 09:12 AM

#36

montgb

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Quote:

Originally Posted by iSuxeL

Man it's pointless for me to post anything cause my car's too loud haha

Post a vid and Club Lexus will decide if it's too loud or not.

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06-25-10, 09:59 AM

#37

Keith13b

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Quote:

Originally Posted by AZ JB

My avg MPG has actually gone up about 1mpg since I finished the mods. I was averaging 19.1 and now I'm averaging 20.0-20.1.

Holy crap - how fast are you driving? I get in the upper 20's like 26-28. On long trips on the highway i've broken 32.

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06-25-10, 11:05 AM

#38

montgb

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Quote:

Originally Posted by Keith13b

Holy crap - how fast are you driving? I get in the upper 20's like 26-28. On long trips on the highway i've broken 32.

LOL, don't judge him too harshly - I'm still getting around 19-20 mpg with my PPE headers and lead foot.

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07-01-10, 12:06 AM

#39

eyeamkeek

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does installing headers void warranty? i know they have to PROVE a problem was caused by the modification but does it automatically void it or did i answer my own question? lol

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07-01-10, 03:38 AM

#40

montgb

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^^^ Answered the same question in the other thread.

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09-12-10, 08:44 PM

#41

jadeboy

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Ok.. I can't seem to be able to find this anywhere.. what is the torque of the bolts?

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10-14-10, 11:10 PM

#42

andrewshu3

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four months in, and I can say that I seem to be feeling more of a kick now. Maybe the seals have finally set or something? The sound has also dropped in volume. I used to kinda cringe a bit when I started it up in the morning and the engine needed some time to warm up, but its a LOT better now.