I just want to know a few things about this exhaust before I do decide to purchase it.

1. For those who have had it for a while, is it still intact, and looking good? Or has it given you problems, or any rust issues?

2. What type of performance gains can I see from a full catback system like this?

3. Is it overall worth the money? or would you spend double the money and go for a borla?

Thanks!

 

I have the M2/topspeed exhaust on my GS4 and I love it. Thee's a video of a few quick revs in the thread "new guy biting the exhaust bullet for all" if you wanna get an idea of how it sounds. I warn you though that it does not line up absolutely perfectly. The front flange on mine is just a little off causing the tips to be slightly off center. I plan on fixing this by having the front resonator removed and having the exhaust shop line it up properly when it is taken off.

 

Here's my video with mine:

 

You have a 300? Assuming by your name.

To answer the o.p. I'd give it a shot. Ive had tons of luck with ebay exhausts, and like the other poster said, they seem to not line up 100% everytime. But, they are a great deal for the price. I'll be buying the same exhaust in the future

 

Yeah a 300.

 

500% better than the ****ty borla exhaust. The borla drons and fits like ****. Topspeed stil drons a bit but not nearly as bad as the borla.

 

Got a link? I don't really see any o eBay

 

Very wrong, I decided to go with borla over topspeed. There is no droning, sounds great and fits like a dream it honestly looks awesome! Borla makes it sounds great!