I recently bought a 2007 TL Type S 6MT. I've been into the Honda game for quite some time now, but I've never gotten into the J series motor (I'm a B series guy at heart, though I absolutely LOVE my type S).

So, the owner that I purchased the car from had deleted the factory mid muffler and factory resonator. The rest of the exhaust was left alone. I went ahead and purchased the RV6 PCDs and J-pipe. Though it is oddly somehow growing on me, the exhaust now has an extremely obnoxious rasp to it, especially on cold startup and especially around 3k-ish RPMs when shifting.

Now I'm not completely sure how I should tackle this. I definitely want a lot of sound out of my exhaust, I could just really do without the rasp. Again, I'm not familiar with J series at all. Do they need much back pressure to perform? Should I just weld a short(er) resonator in to get rid of the rasp? Should I go with larger diameter exhaust piping with a long(er) resonator? One thing I definitely, definitely, definitely want to keep are the factory exhaust tips. I absolutely love the look of the factory tips.

Thanks in advance for taking the time to read this!

- DJ

 

resonators will do the job.
and depending how quiet you want it determines the length or how big the resonator needs to be.

p.s. resonators are not engine specific. :wink:

 

I'm well aware that resonators are not engine specific, but like I said in my original post, I want a lot of sound out of the exhaust, I could just do without the rasp. How long, or short, of a resonator would I need just to get rid of the rasp?

 

Maganflow 10426 or 10436 (longer)

 

I've read that those are the 2 most popular resonators used on TL exhausts. I'm just afraid of losing more sound than I want to lose. It's not even that I want to lose sounds - I just wanna get rid of the horrible rasp.

 

again, resonators are not engine specific, so the 2 quoted magnaflow resonators are the most popular for any car!! NOT just the TL!
just curious, how are we supposed to convey sound through text?
you're going to have to play with the resonators and the sound you want...just like your B-series engines

 

So wait. Just because I've read that these 2 resonators are the most popular that TL owners use means that I think that resonators are engine specific??

I'm simply asking if anybody has had any experience with this same situation and what they did about it.

And to be quite honest with you, I've never owned a B series that sounded even half this terrible. I don't have to play around with resonators on my B series.

I'm not asking anybody to convey sound through text. I want to know if anybody knows of a resonator that will reduce as much rasp, but as little sound as possible, if that makes sense.

 

Buy a 14" long resonator that has a 4" diameter.

This is should get you what you want but if it doesn't buy the 18" long one and so on and so on. The tough thing about narrowing in on an exhaust sound you like is that we all have different tastes and all exhaust setups sound a little different based on what mods you have. I'm personally on my third resonator and now have the sound I specifically want.

 

Trial and error are your best friends OP.

 

Hey DJ,
Regarding your question about back pressure in the TL-S - this engine runs at a RELATIVELY low compression, and shouldn't use obscenely large diameter exhaust piping in order to perform. Stock, the 07 and 08 TL-S have 2.25" diameter piping. Going up to a 2.5" piping is ideal (in my opinion) as it gives the motor just that bit more of breathing room that it needs to both gain a couple of hp and to crackle and pop depending on your mods. Anything larger than 2.5", however, will destroy your back pressure and cause some noticable power loss.

 

I removed the resonator and mid-muffler on mine along with adding an XLR8 v2 J-pipe. Sounded great at start-up, full throttle and it was quiet at cruising speed. However, part throttle in the 3000-4000 rpm range had some nasty rasp. I had an 18" Dynomax resonator added back and it totally eliminated the rasp and slightly quieted the exhaust at all other times. Since you have PCDs as well, you may need an additional resonator.