I purchased a 2009 S40 not more than two weeks ago and I'm loving it! I've put on clear signals and brake light and a side mount license plate. Now I'm looking to add more performance.

I've search on the forums about slip on mufflers and found a couple of brands: Supertrapp, Jardine, Sportster, and Dyna. When I get on their respective sites, I don't know what to buy. I tried to get on ebay to find any deals but I'm afraid to buy just in case it doesn't fit. Plus it seems that when you are looking to buy a sportster or dyna you end up buying two mufflers.

I'd like to go the most cost effective route which is why I'm looking at Sportster and Dyna slip ons. Plus I'd like to get black as well. Any pointers? Thanks in advance!

P.S. Oh, I'm planning on buying a Dynojet kit as well as a K&N. Debating on the K&N bc I've seen that not everyone is gung ho about it bc the possible more dirt entering.

If you get a sportster or dyna take off it most likely WILL NOT fit as is. Never fear. The problem is this - The OD of the head pipe is slightly larger than the ID of harley mufflers. Some are able to just really clamp it down hard and it works. Most make a shim. I just cut the ends off a soda can and then cut it down the middle, folded the aluminum over once or twice (cant recall) wrapped it around the head pipe and slid the muffler over it. Then clamped it of course.

One more thing to add just to make fitting it easier. As ER pointed out make sure whatever muffler you get does not have a crossover port. Also, there are two kind of mounts. Tab mounts and rail. A rail mount will be much more simple. Keep looking on ebay. I was able to get a single, brand new, screaming eagle slash cut for $25.

i used some exhaust paste on mine, smother it round the connections, fit the pipe, bigger exhaust clamp to hold the join together, when its gets hot it sets rock hard and seals the join

Thanks for all the advice! This is the most comradely forum I've been to. Other forums would see my single post and not bother to answer. I really appreciate it. It's been fun to meet other ppl with the same bike and the same passion.

So this is what the game plan thus far..

Muffler
I just started Chiropractic school so I'm ridiculously poor now so I'm going with the Dyna from a local Harley dealership to be sure that I get the exact muffler you guys suggested. (My school doesn't allow new students to park on campus so that was my justification to buy the bike - haha!) Now I need to do some research on what a "canister with a cross-over port" aka get a "take off canister" and not pay more than $50. I've come to realize that bike shops and mechanic give you better advice and prices when you walk in and at least pretend to know what you're talking about.

Other Mods
Jet Kit - I'm going to shoot Lancer a PM about purchasing a jet kit. Is installing a jet kit for a newbie mechanic an easy process? I tried to reading the DynoJet's 4 easy steps to installing one and noticed there's drilling involved seems difficult.

Air Filter - So K&N? I saw that the Savage Store suggests a brand different from K&N bc it doesn't require oiling. But I also read that a lot of ppl do not suggest an air filter because of the debris entering the engine.

I'm also planning on getting the HID headlight conversion kit. Getting old and my eyes are terrible at night.

SavageDude wrote on 09/19/09 at 23:13:57:


That would have been awesome but I'm actually in Dallas, TX. Yep, I am Vietnamese. Wanna halfway and get some Pho in NM or AZ? HAHA!

I elected to keep the stock muffler and open it up a little, ...for the very reason of these other mufflers not fitting.
Not only the problem of pipe sizes not being correct, also confusion of the angle not being correct, and having to use an adapter made at a muffler shop, and others not having the mounting hole in the right place, and having to bend tabs on others.
I don't even know if "any" of these mufflers actually fit right on w/o modifying something.

dhtran wrote on 09/19/09 at 21:33:47:


Tran, Welcome to the site, Everyone in here is very helpful and willing to assist when needed.  Now, we love pics so how about posting pics of your new ride and mods you've done so far.

@Justin, point taken. I'll wait until I get SavageDude's extra muffler and slap that on and wait on Lancer's jet kit then the fourth week do a intake.. then the white spacer... looks like weekends are full of football, riding, and tweaking!  

@flcruzr,  I added clear lenses all around and a side mount license plate. I need to get different screws to hold the actual plate. That red is killing me. I'm planning on blacking out everything that's chrome on there so powder coating the header, exhaust, well pretty much anything that can be powder coated. I'd like to change out the side mirrors for something alot smaller.

Click to enlarge.

Routy wrote on 09/20/09 at 17:39:23:


I like all my vehicles "clean" in colors. Back in the mid 90s, a lot of third party companies made clear corners, clear tail lights, smoked lenses, etc. Remember the infamous blackouts? I hated those soooo bad.. Oh dear... Nowadays, car manufacturers develop the car with these accessories already installed i.e. the Lexus RX. I remember back then I used to buy clear everything, tint, alarm, CD player, CD changer, rims, speakers, etc. Now my latest ride, a 2006 Honda Element, I've only bought a billet grille and took off all my emblems. It came with everything else.  

I just think it cleans up the looks a lot. You can kind of see the color of the bulb but it isn't that recognizable. That's why the reflectors on my license plate are bugging me quite a bit. I just took off my side mirrors too - haha.. I just think less is more...

What do you think?