I'm wondering if the Top Speed Pro N1 Exhaust gives as much hp gain as the XO2 Exhaust does. I really want the Top Speed Pro N1 Exhaust because of the awesome sound it produces but I have heard quite a few saying that it does not really give much more power; mainly only for the sound. As for the XO2 exhaust, I hear(seen dyno sheets) it gives about 10-15HP increase. Also I'm planning on putting one of these exhaust with STOCK cats. So which one would give more power/better choice? Sorry, I'm new to all these modding things
Thanks!

 

neither will give good gains (at least not at the 10-15hp that is claimed), for the G exhaust is more about the sound. the only systems you'll see gains with are mainly FI, HKS, or Stillen, and that isn't much, maybe +5hp/tq or nothing at all. out of the two you mentioned, i'd go Top Speed because XO2 is a little too drony for me.

 

hmm but won't the x02 exhaust give as much power as the HKS because basically it is an HKS replica. just sounds a bit deeper and cheaper quality i guess. ahaha. I'm not sure. I've read numerous threads and all have stated XO2 gives quite a boost. I want the Top Speed but hesitated because i hear it does not give any power at all.

 

Any exhaust that is higher flow will give you more power...they all differ in where the power is increased. But most will be mid range and high rpm range.

 

the top speed is pure sex. PURE.

 

go hks

 

Not to but in on the thread, but what would one expect to pay for the top speed exhaust?

-Junya

 

lol at the revive. double lol at the person who said x02 has more drone than topspeed hahahaha

 

There is a dyno sheet in this thread.
https://g35driver.com/forums/intake-...-dual-x02.html

 

I have the Topspeed Exhaust and LOVE IT!! If I'm going on a long trip I just put the silencers in and any drone in question goes out the window. I drive 40 minutes to work and back each day and have no regrets.

Hate to say it but I'm going back to stock... need the extra cash right now. If anyone wants to buy it let me know... its practically new!! If not..

 

Ahh and the rebump... this thread has got some kick left in it

 

how much you selling the exhaust for?

 

Selling my top speed pro-1

 

Topspeed Pro-1 is a 2.25" that doesn't replace your factory Y-pipe. HKS is a 2.25 true duel with H pipe. All the HKS Replicas (pretty much none of which are made by X02 anymore) are 2.5 true duel. 2.5 vs 2.25 piping. Logic in most instances would dictate that the HKS Rep would make more power than the Topspeed or the HKS.

 

^That is true.

The topspeed still retains the factory restrictive Y-pipe and is louder than the HKS replica.

The replica pros: 2.5 vs 2.25, TRUE dual, quieter, cheaper in most cases, replaces restrictive stock y-pipe.