Top Speed Pro-1
 

Hey everyone,

So probably a dumb question, but recently I got my self a 2010 G37 Anniversary Edition and want to get an after market exhaust. I have settled on the Top Speed Pro-1. It's probably been asked and answered but here it is once again.

This is the sedan axle-back Exhaust: Infiniti G35 G37 Sedan 07-14 Top Speed Pro-1 Axle-Back Exhaust System (Bevel Edge Tips) - Top Speed Pro 1 Performance

This is the Y-pipe Exhaust: Infiniti G35 G37 Sedan 07-14 Top Speed Pro-1 Y-pipe Back Exhaust System Bevel Edge Tips

Is it worth the extra $250?

Also why is the axle back exhaust without the canister things on the mufflers while the Y-pipe Exhaust has those canister barrel things.... wow canister barrel things sounds awful lol.

This is the only one I'd get (and I have one of the first ones, about 6 years old now).
Infiniti G35 G37 Sedan 07-14 Top Speed Pro-1 Y-pipe Back Exhaust System Bevel Edge Tips

The ones you listed are basically just muffler deletes w/ SS tips.

I got the one in the first link you posted and I love it. Sounds mean. I get compliments all the time.

But like blnewt said above, its just an axle back without mufflers. I paired mine with Vibrant 12" resonators.

second one
 

Have the second one listed. Love it especially for the price.

Here a video of the sound. This is when it was new. It sounds much better now. but it isn't too loud

I enjoyed my Y-Back for about a year now and in terms of sound, build quality & fitment its a great deal. No rasp or droning worries with this system, you'll be a happy camper fsure.

I have the y-back system with mufflers painted flat black. I love it. Fitment and sound are both great.

I recently switched back to just the Top Speed and a 3" y-pipe (after having ART Pipes as well) and I've been so pleased with the sound again, no rasp or drone at all. My advice, even if you have resonated test pipes get some extra resonators welded in.

When will they have it again? It's been out of stock for a while.

Best to call them, they are pretty good about estimated ship dates.

There's also the J2 catback, it's a full catback (not a y-back) and seems to be a decent setup for the price
https://www.myg37.com/forums/g37-cou...k-exhaust.html

You can also check their actual eBay page, since every time they make a batch its split between vendors and eBay gets a few.

Z1 RFHC/ 12" Vibrant Resonators
 

Alright my dudes. So I have a stock catback with 12" vibrants and z1 rfhc and its raspy as ****. SoooOOoOo. I've been thinking what will benefit me more. The y pipe back or muffler delete top speed pro axle back. I want it loud but not screaming loud. I do know they have stopped making the y pipe back, but it doesn't hurt to email them?

Honestly, for the money, this thing is hard to beat. The car isn't obnoxious. On the contrary, it sounds refined and sporty. There is virtually 0 drone, and the raspiness mostly occurs only during a cold start. It opens up incredibly in higher RPM ranges as well. Yes, the welds get a tiny bit of surface rust on them, yes, it stains easily and likes to be polished, yes, its still worth it.

I believe mine are original to the car. 2011 G37 iPl. It is rusty looking on the inside. Is that normal?

Flat black
 

Sorry to bring back this old thread, but I wanted to ask if you had any clips of your exhaust as I was thinking of pairing my nonresonated axle back with 12 in. vibrant resonators in the future to make it a bit louder? Thanks.