Ok search doesn't work, and the I35 forum really doesn't talk too much on performance (or atleast i tried asking questions before/or there isn't many bpu modded I35s). That being said, I have ordered stuff before from steve and scott at frankencar and I have also talked to brian at cattman. I also don't want to start flame wars or put the two companies against each other, i am just looking for the best exhaust mod. I have an intake already and pulleys. I want headers and exhaust, and since headers cost more, exhaust will be first. I keep hearing comments about cattman's exhaust and from many, it sounds like the 350z and g35 stock exhaust. I've seen/heard steve car (frankencar) on videos and it also sounds nice. Cattmans exhaust is
$599 (not including kit) vs frankencars $450. Cost really doesn't matter, I just want a nice exhaust for the I35. Which is a better power added + sound + bang for buck? Any help is appreciated and thanks in advance!

lee

 

i would go with cattman from everything i have heard about him.im getting cattman headers here soon.keeping my obx SS catback though

 

Well the word on Frankencar is that it sounds almost the same as stock. I personally have Cattman and it sounds great. Pricey? Definately! But the quality is superb. And Cattmans customer service is far better than the Frankencar, should you have a problem. Lots of horror stories floatin around about Frankencars cust service.

 

Cattman all the way man!!!!!

 

Hey, I just installed the Cattman B-pipe with resonator and kept my PowerTech muffler, I have a Y-Pipe for now and plan headers for next spring, so for me it's Cattman all the way, Brian is a great guy and always answered my e-mail + they offer a good customer service.

Cheers

AA

 

Frankencar tends to take a while and not respond to your calls, emails, etc. I have ordered two intake midpipes from them, the exact same product, and the first one took 4 weeks, while the second one took a few days to get in. Good product but can take a while, just be patient. For a midpipe I would not worry about the wait too long, but for a catback I would not be too inclined to deal with their customer support.