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View Full Version : Sparks X-4 (400ex)


RUFIO
03-01-2003, 08:56 PM
What do you guys thing of a fullsystem x-4....i would be running it with a Uni and drilled airbox lid...In comparison to a E-series slip on...Im not really looking to much for bottom end but the x-4 dosent ONLY give bottom end right?
jerry-89-250R
03-01-2003, 09:38 PM
i have run a x-4 since 2000 on my 440ex, i don't think it would be any faster with the x-6, not much bottom end with it, i'm thinking of a t-4 now that it's just trail riding for me
RUFIO
03-01-2003, 10:01 PM
You're talking about a Curtis Sparks right
03-01-2003, 10:53 PM
just go straight to the x - 6
RUFIO
03-01-2003, 11:17 PM
Id like to but i dont have that kinda money
mopar 400
03-01-2003, 11:26 PM
Originally posted by RUFIO
What do you guys thing of a fullsystem x-4....i would be running it with a Uni and drilled airbox lid...In comparison to a E-series slip on...Im not really looking to much for bottom end but the x-4 dosent ONLY give bottom end right? the e-series compaired to the sparks x6 is like night & day.I had the e-series with a power bong header. Now running the x6......::macho
jerry-89-250R
03-01-2003, 11:30 PM
yes i was talking about curtis sparks x-4, in fact i don't think he even offered the x-6 in late 99 early 2000
RUFIO
03-01-2003, 11:41 PM
mopar 400, you're saying that about the X-6 but what abou the X-4:confused:
EvilJester400EX
03-02-2003, 12:14 AM
Originally posted by RUFIO
Id like to but i dont have that kinda money
I do believe that the X-4 and the X-6 are the same price. Correct me if I am wrong.
NTPRacing#19
03-02-2003, 12:31 AM
no your right jester the x-4 and x-6 both go for around 489 bucks
methyman
03-02-2003, 01:13 AM
the X4 and the X6 pipe are the same prices. Just get the X6 and be done so when you do motor work you dont have to buy another pipe later on.

http://www.sparksracing.com/Sparks_Frame_1.htm

Sparks Racing TRX 400EX exhaust X-4 - ceramic $489
Sparks Racing TRX 400EX exhaust X-4 w/ spark arrestor - ceramic $549
Sparks Racing TRX 400EX exhaust X-6 - ceramic $489
Sparks Racing TRX 400EX exhaust X-6 w/ spark arrestor - ceramic $549
Sparks Racing TRX 400EX exhaust X-6 Stainless Steel $519
ajr400ex
03-02-2003, 02:25 AM
The full sparks pipe will deliver alot more power than a slip on. A slip on doesn't do that much but make noise in my opinion.
RUFIO
03-02-2003, 10:19 PM
you see i am buying the x-4 used for only 250 bucks and its in good shape so...
RUFIO
03-05-2003, 02:45 PM
What jet size with the mods listed below?
RUFIO
03-05-2003, 02:46 PM
gearing shouldnt matter should it?
RUFIO
03-05-2003, 07:31 PM
anyone....anyone...
Quadfather
03-06-2003, 08:14 AM
I had a complete X-4 system on my 400EX. The sound was down right deafening. Even with a helmet on, it was extremely annoying. I switched to a stock header, and a Yoshi slip on, and I honestly didn't notice much power loss at all. What little I lost was well worth the noise reduction.
RUFIO
03-06-2003, 12:01 PM
Oh well. It's already ordered.
mxstar52
04-25-2003, 12:36 AM
hey dumb question but i plan on gettin a X-6 for my 03 400 and in the future plan on addin a edelbrock quicksilver carb and K&N and jets would that make it run allot better?and also i want the one without the disks on the silencer so which one would i get?
NTPRacing#19
04-25-2003, 01:39 AM
sparks exhuasts dont come with discs on their exhuast systems. if you want to get a new carb buy a fcr39, they are much better than a edlebrock carb. and yes those intake upgrades will help alot!
mxstar52
04-25-2003, 12:49 PM
tanks i was wonderin about the disks because ive seen on there web site a raptor with disks so i wasnt sure and how much does a fcr39 go for?
NTPRacing#19
04-25-2003, 01:53 PM
a fcr39 from sparks racing goes for about 430 i think, www.sparksracing.com they have eveything you are lookin for