Quote:
Originally Posted by eastendraceshop
I ran catless Tomei UEL's on my dd FRS, with a hooker catless/resonated front pipe, for about 2 years and over 40k miles. I ran E85 most of the time and didn't notice any smells when sitting inside the car. I did notice the smell of E85 whenever I did a cold start and stood outside of the car. I also didn't notice any funny smells when I was on 91.
With a tune and the UEL headers, the torque dip was eliminated and the car was much more fun to drive. However, I hated the drone so much that I put the stock exhaust back on. I couldn't have a conversation in the car without yelling, lol. There are a few cat-back exhaust options that will let you run a catless setup without the drone, like the ARK Grip, Corsa, Invidia Q300.
I doubt that you'll pass emissions testing when running a catless setup w/regular pump gas, but you might be able to pass with E85.
-Sam
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Hey thanks for your input. Yeah that’s why now I’m thinking about just doing catless headers, front pipe and a tune and keep stock OP and exhaust. I’ll run this for a while then just kinda feel it out when selecting a lightweight, aftermarket catback. I’m considering the Invidia R400 or the new Invidia N2 as I haven’t seen much of them with catless headers and it does have a nice note to it. Like I said, I’ll feel it out. Everyone has different definitions of loud and annoying lol
That being said, what style front pipe would be best to pair with the catless headers? Dual resonators, cat and resonator, or just a high flow cat? I’m kinda leaning towards something like the Tomei catless headers with the JDL “Ultra Quiet” front pipe. I think this would help contain the smell and drone and would also give me a nice, deep tone.
If anyone has experience with anything similar, please share! Thanks