I have a 2003 TL-P with a Comptech Ice Box and Thermoblok spacers. Not that the spacers should effect my inquery, but I just ordered Comptech mufflers as well, which leads me to my question: I understand the TL-P has 2in OEM exhaust piping, the TL-S 2.25in exhaust piping and Comptech Catback is 2.5in piping. When I get custom catback piping to compliment my Comptech axlebacks would 2.5in piping be TOO big? I know this sounds lame, but would the exhaust flow be too loose or flow too freely thus messing with my sound and adversly effecting performance? Rather, I understand 2.5in piping is a bit excessive(ment for Type S) and my car isn't that well aspirated being a TL-P with just an inatke, so will 2.5in catback piping on a TL P with just an Ice Box hurt my sound and performance? I know if I had headers it would be a different story but I just don't/won't have the money for them for a long time (going to pay off bills and buy a body kit, rims, tires...)

I understand this is a noob question but if I'm going to do it I'm going to do it correctly...

Thanks guys for the input

 

All depends on where you run the 2.5 from. if its from the Y to the mufflers, that would be fine. If you run it from the cat back you may loose a little low end??????? Dont really know. I would assume that you would be fine no matter what (as ive done it in the past on other cars with no sideeffect)

 

I was planning on running the 2.5 from the cat to the mufflers. Thanks for the input by the way. It seems crazy exhaust could be "too free flowing" but it makes sense how it could hurt me down low or effect sound.

 

why not try 2.25 from the cat to the y, and from the y to the muffler to 2.5?

 

Yeah that is another good point, in the end it doesn't really matter because there isn't much HP to be gained from exhaust as is...I guess if it would help/not hurt to have 2.5in all the way then I would go with it. Uniformity I guess?

 

what is your setup btw? comptech mufflers i believe? what about resonator? premuffler?

with 2.5 you will lose low end for sure, but gain top end. i guess its all up to personal preference. i think it would also give the exhuast a slightly different sound with the larger diameter piping. let me know how it goes, i was planning to get mine done (maybe) once i figure out the best setup.

 

going with a bigger pipe can change the sound...i dont think it will make a huge difference though. 2 1/4 should be fine...it wont look wierd on the mufflers when the welding is done. if you choose 2.5 then that will probably work as well.

 

My set up will be Comptech mufflers with either a 22in T-304 stainless steel resonator I saw in Summit magazine or a 22in Magnaflow muffler with a 10in Magnaflow Y-Pipe and the rest would be custom piping from my exhaust shop. That covers it doesn't it?

Custom piping from cat to 22in resonator
Custom piping from resonator to Y Pipe
Custom piping from Y Pipe to mufflers

Thanks for all the input guys.

 

when you planning to get this done? post sound clips once its done!

 

Should get the mufflers by end of next week, so soon after. I don't know if I'm technologically savvy enough to do a viedo clip ....I really don't do anything on the computer besides mess around on here, follow LSU recruiting, type papers, and get on AIM

 

what tips are you planning to use? oem or aftermarket. ive never seen comptech mufflers separate from a cat-back system so I dont know if they are any different than any other universal muffler. i think a nice set of magnaflow SS tips would look good. they are kind of pricey but worth it.

 

^ the comptechs come with tips already.

 

Comptech will sell the axle backs, B-Pipe, or both as a package. The B-Pipe only fits The Type S. The axle backs fit both. My tips will be 3.5in T-304 stainless steel double wall (what comes on the Comptech mufflers).

I was hoping to achive the deepest most mellow sound with this set up. Sine the Comptech catback set up is not compatible with my car, I had to take this route. It will actually be cheaper, but not all T-304 SS. I'll take that trade because I will just bbq paint the non T-304 pipes to stave off rust. I think this setup will meet my needs better than the Apexi WS II or Neuspeed system since I want the deeper, more mellow and subdued sound. Not quite as aggressive. Guys give me your thoughts.


Does anybody know the piping diameter on the on the Apexi WS II system or the Neuspeed system?

 

^ your setup will probably be the best other than a magnaflow setup. the apexi ws2 will also be a nice setup. i like the apex but the cans are just too big. neuspeed is just loud.

i will probably be going a magnaflow setup with a 14-18" res.

 

Actually the Comptech cat back will fit the TL-P. You just need to buy the TL-S cat

 

Yeah, I wasn't going to take it that far. But yeah, I saw samhwks did that. I believe that is his name.

 

What is great about the magnaflow setup is it is so customizable. You have a choice on Y - Pipe, resonator size, and mufflers. You can make it as aggressive as Neuspeed and the Tanabe Hyper Medallions (go with a 14inch resonator), or you can make it rival Apexi Word Sports and go with an 18inch resonator, or you can make it even deeper and more mellow similar to Comptech with a 22inch resonator. I agree with you Magnaflow puts out a good product.

Does anyone else agree with me that the BBQ paint on the none T-304 SS parts will help prevent rust?

 

^ mangnaflow puts out a nice products but not the best. best for its price. but anyways, i do believe high temp engine paint will help prevent rust (500F-1000F).

what size res would you recomend with the magnaflow setup?

 

^^^^Agree....as far as price and quality ratio Magnaflow is hard to beat.

I'm def. not an expert of exhuast, I'm not sure if I'm the man you should ask. I've read a lot and listened to some in person...but I'm no pro. Try PMing people with Magnaflows to see what they have to say. Depeding on how loud and aggressive(Neuspeed and Tanabe) or how mellow and subdued you want it to sound or amix inbetween (Apexi) will determine resonaotr size with the Magnaflows.

 

btw, how much are you paying for your resonator? size?

 

It's all here bro...

www.hottexhaust.com

By the way, I'll probably end up going with 2.25in piping. I don't want to take a chance at losing low end power, especially when there is nothing much to be gained from exhaust for our cars in the first place. Any thoughts/comments on the piping size?

 

yeup checked out the site already. just wanted to know which one you choose.

go 2.25 it will be better than going 2.5.

 

Why do you say so? I'm just wondering because I want to learn as much as possible.