# My C5Z made 610RWHP NA today... **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [June 4, 2010, 3:43pm UTC](https://forums.speedlife.net/t/my-c5z-made-610rwhp-na-today/205068 "2010-06-04T15:43:19Z")\ **Posts on this page:** 1\ **Showing post:** 11
**Author:** ![tjZ28](https://avatars.discourse-cdn.com/v4/letter/t/9de0a6/32.png) [@tjZ28](https://forums.speedlife.net/u/tjZ28)\ **Post date:** [June 9, 2010, 6:22am UTC](https://forums.speedlife.net/t/my-c5z-made-610rwhp-na-today/205068/11 "2010-06-09T06:22:59Z")
> [@Bought a macbook pro... suggestions?](https://forums.speedlife.net/t/bought-a-macbook-pro-suggestions/42136/18): > > Keep us posted with results from Thursday. > > 600 rwhp is definitely badass. And that’s a good experiment comparing back to back with the exhaust and maf changes. It’s probably not worth investing any more in the intake. You’d get more bang for the buck with suspension, wheels, and tires for the strip. > > I am using the ls7 maf right now. Just an idea if you don’t want to go speed density. The maf is $70 and the mounting bracket from gm is $13. Put all that in a 4" aluminum tube and it’s a little bigger than the 90 mm throttle body. It’s more than my engine needs - the 85 mm would be fine - but it was something different to try. > > How does the Borla sound compared to the Ti? The Ti is one of the best sounding exhausts IMO. The 610 was a SD tune. My tuner puts an entirely new OS on the PCM, and he likes it w/ SD a lot better than the LS7 MAF. He really hates the LS7 MAF actually. The straight-through exhaust is LOUD. With 1 7/8" stepped to 2" primaries on the headers, off-road X-pipe, and no mufflers in the exhaust it’s just retarded. The 12:1-ish compression really sounds mean though w/ the cam and all (248/256 or something like that). I agree 100% the Ti is the best sound exhaust out there. With this motor and the rest of my exhaust it’s actually plenty loud, in fact I won’t make sound at Laguna Seca even w/ the Ti so I need to get a catted X-pipe for there. ☹ The car is not a drag car by any means. I have over 4 sets of stock C5Z wheels, so I did buy some of the new Hoosier DRs (in 315/30-18) for one of the rear sets just to give it half a chance of hooking. It’s not going to get a “drag” susp or more serious tires though. It’s a road course car, I just thought it’d be cool to see what it can do on the strip. > [@GOODBYE RETAIL HELLO 9-5 MON-FRI!!!](https://forums.speedlife.net/t/goodbye-retail-hello-9-5-mon-fri/42342/30): > > Werd. Wish it was just a tad bit louder though. You don’t have cats right? If you do, ditch 'em. If you don’t you could do the Ti “mod” where you connect a smaller (most ppl do about 1.5" I think) pipe from the 90\* that turns into the muffler straight into one of the pipes before the tip. That way a small % of the exhaust never even goes to the mufflers. It still retains the unique sound, but picks up some volume. It’s tough to find the Ti pipe and somebody that can weld it though. -TJ --- _[View the full topic](https://forums.speedlife.net/t/my-c5z-made-610rwhp-na-today/205068)._