I'm running a longer res and a shorter muffler with the high flow cat that comes with the ej header. I only get rasp when the engine is cold.
So currently, I have a full-custom header back exhaust and am suffering rasp right at the peak of each gear. Currently, I am running the following setup, in order.
- OBX Header (EuroJet Design) with titanium wrap and silicone coating
- 2.5" Cat-Less mid pipe with custom 'branch' O2 spacers
- 2.5" Magnaflow resonator (12" length)
- 2.5" Magnaflow Muffler (12" total length as well)
- Non-resonated rolled exhaust tips
Currently, I was looking into just putting an ultra-high-flow cat in the mix, going with an either 100 cell or 200 cell setup (2.5" as well, of course) to help, but was hoping I could get some additional ideas and feedback before I being dumping $$ to make things perfect.
Should I just start with highly resonated tips and go from there?
You'll probably benefit from a14" resonator and maybe a 200 cell cat. Depends really on what you want. It can't be mellow and loud, can't be quiet and throaty. It's kind of finding that balance. I have the Eurojet exhaust and no cat and have zero rasp...but i also have the best muffler anyone can buy...the turbo...
Many people find test pipe plus Eurojet to be raspy, and they use a14" Res and muffler... So get a high flew cat and it'll prob be perfect
Sent from the bottomless pits of HELL!
god i love my car. it may not be fast, but it's crazy fun!
C2 stage 2 TURBO!!! ACHTUNG!!! 2.5liter 5cylinder contents under pressure!!!
A longer resonator would do the trick as well. I'm still running the stock exhaust manifold but I have a catless midpipe running into a 24" resonator to a 14" turbo muffler (Imco is the brand) with a twin exit double wall tip. It's not loud but people notice if i get on it and not even a hint of rasp up to 7200.
Tornado Red 2007 VW Rabbit |C2 SRI|C2 SRI Software|Custom 2.5" Manifold-Back Exhaust|FK Streetlines|BFI Stage 2 Transmission Mount|ES Dogbone Insert|
|42DD Shifter Bushings|