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View Full Version : Anybody try AC Racings HVO full system?



Slochrane
12-24-2007, 06:08 AM
Does anybody have this exhaust for the 400ex? I have been searching but cant find any first hand info on this system? I really like the look of it and can get a full system for $360. Any thoughts?

Link to pic. http://acracing.com/itemdetails.cfm?catalogId=49&id=1200#reviews

maxfior
12-24-2007, 07:25 AM
Personally I've not heard of that pipe... 10+ HP seems like a stretch, but it looks like a nice pipe. Where can you get that full system for $350. That sounds like a good price...

M.

440challenger
12-24-2007, 07:28 AM
looks like a tank. Should be on like a grizzly or soemthing lol.

97WarriorRider
12-24-2007, 10:12 AM
ive only seen them on ebay..and saying that it puts out an extra 10 horse is crazy

250exkid
12-24-2007, 10:44 AM
an aftermarket pipes a pipe no matter what its still gonna give you increases, because its not restrictive like stock so you really cant go rong with it and yea it looks like a tank so thats a huge plus., you should but it and give us all a sound clip. iv always wanted to here what it sounds like

12-24-2007, 12:04 PM
i heard that pipe is junk.

Big - D Racing
12-27-2007, 01:31 AM
no exhaust will give you 10hp. I have seen a exhaust dyno comparison on a stock 400ex with k&n airfilters and proper jetting. It compared about a dozen exhaust systems. The biggest gain was produced by sparks x-6 which I believe was a 3.6 hp increase, followed closely by duncan which was 3.5hp. Remeber this include k&n and proper jetting. And yes all were full systems on stock motors. Of course you can get more gains say testing my bulit 440 with the stock one vs the aftermarkets, but even there i'm guessing the hp increase will be around 5-6 hp not 10.

250exkid
12-27-2007, 09:04 AM
well thats a given like every one should relise they lie like that like HMF it says a slip on gains is 6hp well i no thats not true but what im saying is your still gonna get gains from this pipe way more from stock becuase this pipe isnt restrictive. so i say he gives it a go and gives us a sound test

Slochrane
12-27-2007, 09:08 AM
Well update, found a Muzzys full system for $370 so trying to make a choice ....I think im going with Muzzy's a friend had one for his ninja and it was really a quality piece. Anyone have one for a ex?

250exkid
12-27-2007, 09:11 AM
ummm iv heard of them, im not gonna lie i usually see them only for utes but im sure if there build for utes there gonna be strong so im sure if you find one for an ex buy it and give us all a sound clip.... you can nessesarily go rong it all depends on wut you do and how money is.. like said befor if you want the best go sparks but there not cheap so find a cheap exhuast there still gonna work fine but not the best! so ill look around for you for the muzzy