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· Dark Horse
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3,050 Posts
The Evo line is a full Titanium system (Titanium/Carbon muffler and headers), the Racing line has stainless steel headers and Titanuim/Carbon Fiber muffler.

The Evo system is a couple of pounds lighter, but performance gains are the same. Someone made a post here however, that the Evo system may require custom fitting on some bikes, but I didn't have that problem with my F4i.
 

· G Addict
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2,849 Posts
I have them both here in front of me, and. they are identical in configuration. the evo being ti & the race being stainless. Both have the tapered mid section, and are 4-2-1 unlike previous 4-1 systems. You have a choice of ti or carbon cans. As far as fitment they are usually awesome. but ill let you know this evening.
 

· G Addict
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2,849 Posts
Hey guys, I put on the acro evo on my 02R1, it fit awesome, and boy does it look sweet ! Its going to need a little mapping, but Holy Shit Does this puppy haul ass now. I should be able to get back with some top end numbers after the weekend.
 

· back to the world...
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1,979 Posts
there is a small difference

i found out the hard way that there is a difference in the two pipes. the titanium pipe has a slighltly larger opening in the canister (end that connects to the mid-pipe) the headpipes are the same but the mids are different and the canisters are as well.
 

· G Addict
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2,849 Posts
Hey SHRAKE sorry but you need to reaquire your data. I believe you might be mixing up some pre 02 stuff into the comparison. If you check lockhart part #s for the YZF 2002 they are as follows. 424-6762 for the carbon evo titanium. and 424-6517 for the carbom race stainless. You will find they both come with identical canisters Part #M-TCE2. Please let us know how you came up with the dimensional differences. Im wondering if they have a third exhaust that the mid pipe has a constant cross sectional dimension.
 

· back to the world...
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sorry about that on the 02

you may be right about that. my experience was with a pre 02. i had two systems..a stianless and a titanium. the canister for the titanium was damaged so it had to go back for return. i attampted to install the stainless canister on the titanium and discovered that they were different. and when i received the new canister back it was for the stainless(by mistake) and not the titanium. therefore, i had two canisters for a stainless system and not one that whould fit the titanium mid-pipe. sorry about the confusion..just my experience and i don't konw #[email protected]!% about the part numbers. :D
 
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