best exhaust

who makes the best performing exhaust for an 08 zx6r?

Some companies claim like 12 more HP but some only claim 2 or 3, whats up with the numbers being so far apart from one company to the next.

 

Not sure what works on the kawi,Im a Akrapovic man!

 

They lie, LOL

 

12hp vs 1-2hp sounds like you're talking about the difference between a slip-on and a full system.

 

according to yoshi made 2 to 3 hp for full sys
according to 2 brothers full sys add 12 HP

2 brothers Performance Specs
Stock TBR Difference
Peak HP 101.8 hp 114.4 hp +12.6 hp
Peak Torque 43.0 ft-lbs 45.1 ft-lbs +2.1 ft-lbs
Max HP Gain - 12.7 hp @14970rpm +12.7
Max Torque Gain - 6.0 ft-lbs @14970rpm +6.0
Weight 29 lbs 13 lbs -16 lbs
Sound - - -
with P1 insert - - -
with P1-X insert - - -
Catalyst yes no -
O2 Sensor no no -

 

I've never seen Two Bros in the winners circle. I have seen Leo, Akrapovic, M4, Graves. . .

 

what should i get in HP gain from a full sys?

 

6 to 10ish tuned is the most I've seen on a modern sportbike they're pretty good out of the box.

 

without a tune....maybe 1hp or so. It's all about the tune. I had and 07 ZX6 with an M4. AFTER is was tuned it made +10hp

 

Was that with a power commander and the ingition module?

 

nope after zip ties and duct tape

but seriously yeah your gains are gonna be from the tune. Whatever you tune it with, bazzaz or dynojet.

 

yup, and gained another 5hp on top of that with a tune on U4

 

I wouldnt bother to smash a 2bros with a hammer.
I cant believe they still sell anything anymore! All of their products are
garbage!!!

 

very loud garbage

 

Agreed, worse than dont know why they sell stuff... WHY DO PEOPLE BUY IT????

Go for Akra, Leo, Aarow, Termi (if they make it)

 

How much does a U4 cost? Where can I buy one? Is it hard to install?

 

Isnt U4 fuel? so Install should be easy unless you can't unlock your tank

 

yes, it's gas